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1. Replacement Assembly Key Component Description Part Number Description Part Number Tracking Method MECHANICAL ASSEMBLIES Bezel Assembly Main Keypad Switch M4735 60200 Date Code Assembly English M4735 69400 French M4735 69401 German M4735 69402 Dutch M4735 69403 Spanish M4735 69404 Italian M4735 69405 Swedish M4735 69406 Japanese M4735 69407 Norwegian M4735 69408 Finnish M4735 69409 Chinese M4735 69411 Portuguese M4735 69413 Russian M4735 69414 Polish M4735 69419 5 24 Replacement Parts Table 5 18 Key Components Continued Key Components Replacement Assembly Key Component Description Part Number Description Part Number Tracking Method Pacer Keypad Assembly Pacer Keypad Switch M4735 60210 Date Code Assembly English M4735 69500 French M4735 69501 German M4735 69502 Dutch M4735 69503 Spanish M4735 69504 Italian M4735 69505 Swedish M4735 69506 Japanese M4735 69507 Norwegian M4735 69508 Finnish M4735 69509 Chinese M4735 69511 Portuguese M4735 69513 Russian M4735 69514 Polish M4735 69519 Connectors Patient Connector M3500 69562 Patient Connector M3500 62601 Date Code Assembly Assembly SUPPLIES amp ACCESSORIES External Defibrillation Paddles External Sterilizable M4745A External Sterilizable M4745A Date Code Paddles Paddles External Paddles with M4746A
2. Display Theory of Operation Leads Cable Audio ECG 2 wire Out Speaker Data amp Control 26 pin ribbon Printer System Functional Descriptions Figure 6 4 Power Distribution and Fusing AC Mains Power PCA HV Discharge Pads Charging Circuit Paddles Circuit HV Defib Capacitor Pads FE Biphasic Circuits Logic Power PCA SWbat Vbat Switching Circuit Control PCA SWbat Control PCA Circuits Logic 3V Switching Circuit Control PCA Circuits Logic Keyscan PCA Circuits and Logic o Switching Circuit Keyscan PCA Interface Logic Printer Leads FE Motor Printhead No Connection SPO Printer i Logic Printer Parameter PCA M4735A Service Manual 6 15 System Functional Descriptions Lithium Backup Battery The Backup Battery located on the Control PCA provides standby power to maintain data during times when the main battery is either absent or discharged and no external power is supplied The data maintained includes the user s configuration choices and the system time and date Data Card The Data Card allows the capture of key information such as ECG waveform shock advisories charging and delivering a shock The Data Card is read by the Code Runner Web system for post event analysis CAUTION 6 16 The Data
3. Immunity IEC 60601 Compliance Electromagnetic Environment Test Test Level Level Guidance Radiated RF 3 V m 3 V m IEC 61000 4 80 MHz to 2 5 80 MHz to 800 MHz 5 Cue d 1 2VP d 2 3 JP 800 MHz to 2 5 GHz where P is the maximum output power rat ing of the transmitter in watts W accord ing to the transmitter s specified output power and d is the recommended separation distance in meters m Field strengths from fixed RF transmitters as determined by an electromagnetic site survey should be less than the compliance level in each frequency range Interference may occur in the vicinity of equipment marked with the following sym bol K At 80 MHz and 800 MHz the higher frequency range applies These guidelines may not apply in all situations Electromagnetic propagation is affected by absorption and reflection from structures objects and people Field strengths from fixed transmitters such as base stations for radio cellular cordless telephones and land mobile radios amateur radio AM and FM radio broadcast and TV broadcast cannot be predicted theoretically with accuracy To assess the electromag netic environment due to fixed RF transmitters an electromagnetic site survey should be considered If the measured field strength in the location in which the HeartStart XL is used exceeds the applicable RF compliance level above the HeartStart XL should be observed to verify normal operation If abnorm
4. Data Card Interrupted No data is being recorded on the Data Card because the Data Card was removed during an incident e During incident none The Data Card cannot be reinserted during an incident e After incident remove card turn power off wait at least 2 minutes insert card turn power on Data Card Not In Ser vice No data is being recorded on the Data Card because the Data Card was inserted while the M4735A was on None A Data Card must be inserted prior to turning the M4735A on for the current patient Data Card will not record data until the M4735A is turned off for at least 2 minutes Incompatible Data Card No data is being recorded on the Data Card The Data Card inserted is not compatible with the HeartStart XL Use only HeartStart XL compatible Data Cards see Chapter 5 for listing No Data Card Present A Data Card is not in the M4735A Turn the M4735A off and insert a Data Card prior to the first event for the patient Key Inactive The key pressed is currently inactive i e Use the appropriate mode for the key m Pacer X is inactive in AED Mode Stop Pacer Stop pacing before changing the pacing mode is pressed while pacing pulses are being delivered M4735A Service Manual General Problems Audio Tones The M4735A emits tones to alert you to its status NOTE Before replacing any parts check to see if the cables and flex circuit
5. __ cut or puncture the shield Figure 4 51 Removing he Power PCA Power PCA Shield Replacement 1 Replace the Power PCA a Ensure the shield is still in its proper position in the bottom case a Guide the Power PCA into position under the Patient Connector b Replace the six T10 screws and tighten See Figure 4 50 on page 4 109 4100 Removal and Replacement Internal Assemblies Bottom Case 2 Connect the Control PCA ribbon cable Connect the large ribbon cable Its other end will still be disconnected from the Control PCA 3 Connect the Power Supply a Connect the 2 pin in line connector to the Battery PCA be sure it latches b Connect the 6 pin connector to the Power PCA be sure it latches ec Connect the 4 pin connector to the Power PCA be sure it latches 4 Connect the Battery PCA to the Power PCA a Connect the 4 pin connector be sure it latches b Connect the small 2 pin connector be sure it latches 5 Connect the Patient Connector to the Power PCA a Connect the 9 pin connector be sure it latches b Connect the two High Voltage spade connectors by pushing straight down with a needle nose pliers NOTE The two spade connectors are different sizes to ensure correct connection After Repair After this repair is complete perform the following steps 1 Connect and replace the defibrillator capacitor See Defibrillator Capacitor on page 4 106 2 Reassemble the case See
6. Control PCA failure Power PCA failure Suggested solution Replace Control PCA Replace Power PCA Doesn t measure its own delivered cur rent correctly Power PCA failure Control PCA failure Replace Power PCA Replace Control PCA Doesn t pace at correct rate Control PCA failure Replace Control PCA Pacer hardware not installed mes sage even though Pacer is present Bad connections Manual Keypad flex circuits to Keyscan PCA Reconnect flex circuits properly See Servicing Notes on page 4 1 Unit fails either the Shift System Check or Extended Self Test or reports error code 90007 Test sequence is interrupted Run the test again making sure that no one touches the unit during the test 3 26 Troubleshooting Printer Operational Problems The following table covers problems that may arise while printing NOTE Before replacing any parts check to see if the cables and flex circuits are properly connected See Servicing Notes on page 4 1 Also check for damage to the printer ribbon cable where the ribbon is cap tured in the connectors on each end Table 3 11 Operational Problems Printer Symptom Paper won t move Possible Causes Paper improperly loaded or jammed or paper is wet Printer failure Suggested solution Reload paper or clear jam If paper is wet replace with fresh dry roll Replace prin
7. ceeesecessseceesececetececseeeeeaeeeseaeceeaeceeaeeeeaeeesaeeeaas 5 1 K y COMPOMEING sxnsiacuovsnadsesitnessecyconsezanteag tuunsdunsesaoilavstastanaqaneemestaateratnuastumennasaniwnanat 5 2 Special Tools sissies cer snserst ealve te eerseey ives eu a a a a iiae 5 3 M4735A Unit Exchange Program cscascevsecinsxeassviaaneasaperuceanatsnbedrustisnansuesanacsnagwinaaissine 5 4 Replacement Parts Tables sc irccniertansetasti nena aada i 5 5 Electrical A SSeMb IGS sirsissorop es torni EEEE E E a 5 6 Control PCA cs etic ects aces KE E EE as deme eciiene 5 6 her Replacement PCAS css cacieeaceec ences doce sacdielezeaciea caine cerdadeanaadedeedeeneaanedelcnaateceteaaantee 5 7 Other Electrical Assemblies c 4ssscanicsssnacdeasscceadsidnadsaiasuagedssasaesaasatcaideqeseeecaasanediceaanenedawies 5 7 Individual Electrical Parts isin sctasstusascantedectitedasdaninsnenttinedeagh tasndcedbanssadnsetsduedasaeseedtaoetdeuennite 5 9 Mechanical Assemblies siirus cniris dar i 5 10 Bezel Assembly nrasrscnorsodninonia a O E 5 10 Pacer Keypad Assembly sssrinin neeenins teirinn insenisiniseniiieane iinn 5 11 Other Mechanical Assemblies ssseseseeeeesreeseesessreeresesstrsresresstestrsrestessetsresrenseesesreesee 5 12 Connector Assemblies a insassovanccavtantasadiantcisataarcdanrtoatensenaatenvaradiensuanttnatancuastontoneuannenys 5 12 Individual Mechanical Parts 3 0 jsc0ccecoicvesssesot ayceieetendsccisincolsateasdand Gens seu abiekonsnetasene 5 13 Labels s
8. After Repair Conduct Performance Verification Testing as described in Performance Veri fication and Safety Tests starting on page 2 1 4 25 Opening the Case Opening the Case To open the sealed case safely perform the following steps in the order listed 1 Discharge the Power Supply Capacitors page 4 26 2 Separate the Case page 4 28 3 Discharge the Defibrillator Capacitor page 4 32 Each step is described in more detail in the sections that follow Discharge the Power Supply Capacitors There are two methods of discharging the unit s power supply capacitors Always use the Primary Method first as it will work in most cases If there are any doubts the Secondary Method should also be used CAUTION Always discharge the power supply capacitors before servicing the M4735A Primary Method 1 Begin with the battery in place or the AC power connected This is necessary in order to initially charge the power supply capacitors This charge will then power the click heard later 2 Disconnect the AC power and remove the battery 3 Turn on the unit s power a Rotate the Energy Select knob to turn on the power You should hear a click from the speaker If so the power supply capacitors are now discharging Leave the power on and wait at least 60 seconds before unplugging any internal connections b If you do not hear a click use the Secondary Method The power supply capacitors may not be disch
9. Display Assembly M4735 66552 For devices with EL Display M4735 66557 For devices with LCD Display M4735A Service Manual 5 7 Electrical Assemblies Table 5 4 Other Electrical Assemblies Description Part Number Notes External Paddles with PCI no language M4746 69001 Defibrillator Capacitor Assembly M3500 69564 Speaker Assembly M3500 69552 Includes speaker cable Power Supply M4735 66020 Energy Select Switch Assembly M4735 66564 Also order Knob M4735 69565 External Paddles with PCI English M4746 69100 External Paddles with PCI French M4746 69101 External Sterilizable Paddles M4745 69120 Order language specific label See Table 5 15 on page 5 23 Items marked with an asterisk contain Key Components which require tracking See Table 5 18 on page 5 23 Replacement Parts Electrical Assemblies Individual Electrical Parts These electrical parts are available separately Table 5 5 Individual Electrical Parts Description Part Number Notes Lithium Battery Replacement Kit M3500 69565 Includes battery ProGold wipes and cable tie wrap Main Fuse 25A 32V 2110 0250 Package of 1 Items marked with an asterisk contain Key Components which require tracking See Table 5 18 on page 5 23 M4735A Service Manual 5 9 Mechanical Assemblies 5 10 Mechanical Assemblies The following t
10. fail CT and the date on the label Low Battery Time lt 10 minutes on the bottom of the battery 3 Discard the battery appropriately NOTE If the message Unsupported Battery appears replace the battery with the M3516A battery See Table 3 15 on page 3 31 2 46 Performance Verification and Safety Tests 3 Troubleshooting Overview This chapter provides information about troubleshooting problems with the M4735A Chapter Contents The major sections of this chapter are as follows Section Page Repair Philosophy 3 1 Equipment Required 3 1 Troubleshooting and Repair Methodology 3 2 Troubleshooting Tables 3 8 Calling for Service 3 33 Repair Philosophy The repair philosophy of the M4735A is subassembly replacement Examples of subassemblies are the printer the Control PCA and selected connectors and other items Repairs that involve replacing individual components on a PCA are not supported CAUTION Individual component replacement should not be attempted outside of a factory authorized repair facility Component level repair is extremely difficult due to the extensive use of surface mount technology and the high parts density on the circuit boards Unauthorized component replacement can impair performance of the M4735A Equipment Required Troubleshooting requires the same test equipment as does Performance Verification See Test Equipment on page 2 9 3 1 Troubleshootin
11. Size 115 mm x 86 mm Type EL Electroluminescent Resolution 320 x 240 pixels Sweep Speed 25 mm s nominal stationary trace sweeping erase bar Viewing Time 4 seconds Display LCD Size 111 4 mm x 83 5 mm Type LCD TFT Color Liquid Crystal Display Resolution 320 x 240 pixels Sweep Speed 25 mm s nominal stationary trace sweeping erase bar Viewing Time 4 seconds Specifications M4735A Service Manual Specifications Battery Type 2 Ah 12V rechargeable Sealed Lead Acid SLA Dimensions 2 4 H x 0 94 W x 7 2 D 61 7 mm H x 23 9 mm W x 182 mm D Weight 1 4 lb 0 65 kg Charge Time e Approximately 3 hours to 90 charge indicated by LED on front panel e Approximately 15 hours total to 100 Capacity With a new fully charged battery at room temperature 25 C e gt 100 minutes ECG monitoring only or e 50 full energy 200 J discharges or e 75 minutes ECG monitoring while pacing 100 mA 100 ppm Battery Indicators LOW BATTERY message appears on display when at least 10 minutes of monitoring time and 5 maximum energy discharges remain with a new battery at room temperature 25 C Battery Storage Should not be stored above 40 C for extended periods of time Unit can be operated using only AC power with no battery installed Thermal Array Printer Continuous Real Time Strip User starts and stops the strip The Print Strip prints the selected ECG lead
12. Time ms M4735A Service Manual Waveforms Figure 7 7 150J 175 Ohms Biphasic Waveform Current A 0 0 5 0 10 0 15 0 20 0 Time ms Figure 7 8 200J 25 Ohms Biphasic Waveform Current A 40 0 0 1 0 2 0 3 0 4 0 5 0 6 0 Time ms 7 12 Specifications Waveforms Figure 7 9 200J 50 Ohms Biphasic Waveform 50 Current A 30 0 0 1 0 2 0 3 0 4 0 5 0 6 0 7 0 8 0 9 0 Time ms Figure 7 10 200J 75 Ohms Biphasic Waveform 30 25 20 Current A 0 0 2 0 4 0 6 0 8 0 10 0 12 0 Time ms M4735A Service Manual 7 13 Waveforms Figure 7 11 200J 100 Ohms Biphasic Waveform Current A 0 0 2 0 4 0 6 0 8 0 10 0 12 0 14 0 16 0 Time ms Figure 7 12 200J 125 Ohms Biphasic Waveform Current A 0 0 5 0 10 0 15 0 20 0 Time ms 7 14 Specifications Waveforms Figure 7 13 200J 150 Ohms Biphasic Waveform Current A 10 0 0 5 0 10 0 15 0 20 0 Time ms Figure 7 14 200J 175 Ohms Biphasic Waveform 14 Current A 0 0 5 0 10 0 15 0 20 0 Time ms M4735A Service Manual Symbol Definitions 7 16 Symbol Definitions The following table lists the meanings of each symbols shown on the M4735A and
13. erly applied If necessary prepare the patient s skin and reapply or apply new pads Check the date code on the pads Do not open the pads package until immedi ately prior to use Relocate or turn off equipment that may be causing RFI 3 22 Troubleshooting Operational Problems Table 3 7 Operational Problems ECG Monitoring Pads Paddles or Leads Continued Symptom QRS beeper inaudible or beeps do not occur with each QRS complex Possible Cause The QRS beeper is configured to Off The volume is set too low The amplitude of the QRS complex is too small to detect Suggested Solution Configure the QRS beeper to On Adjust the volume Adjust the size of the ECG Fails ECG Test in Diagnostic Mode Failure in Pads ECG front end or signal processing Failure in Leads ECG front end or sig nal processing 1 Replace Patient Connector 2 Replace Power PCA 3 Replace Control PCA 1 Replace ECG Connector 2 Replace Parameter PCA 3 Replace Control PCA SpO Monitoring The following table covers problems that may arise while monitoring SpO gt NOTE Before replacing any parts check to see if the cables and flex circuits are properly connected See Servicing Notes on page 4 1 Table 3 8 Operational Problems SpO Monitoring Symptom No response no value on screen no pleth bar Possible Causes Bad internal connection
14. 3 RF interference 7 22 ROM test 2 25 Rubber Feet 5 13 Safety 7 19 tests 2 7 2 42 Sealed Lead Acid SLA battery See Battery Select Leads 2 33 3 16 Semi Automatic External Defibrillation AED Mode 1 2 3 24 7 3 Sensors ordering 5 22 Index Servicing cable assembly placement 4 2 flex internal connections 4 2 instrument reassembly 4 3 Key Components 4 1 telephone assistance 3 33 Shield Plate 4 42 Shock Advisory 2 18 Signal and data flow 6 6 Softkey 6 11 numbering 2 11 operational problems 3 30 testing 2 27 Speaker assembly 4 86 5 8 Speaker Label Set 5 18 SpO2 cable ordering 5 22 SpO2 monitor 6 8 connector 4 84 5 12 functional check 2 20 operational problems 3 23 SpO2 Cable Off 3 14 SpO2 Failure 3 15 SpO2 Light Interf 3 14 SpO2 Low Noisy Signal 3 15 SpO2 Sensor Fail 3 15 SpO2 PCA 6 4 replacement 4 78 5 7 test 2 26 Status message 2 33 Index T vi Stop Pacer 3 17 Subassembly replacement 1 3 Supplies 5 1 5 19 Symbol definitions 7 16 Synchronized Cardioversion 6 10 functional checks 2 19 operational problems 3 24 Synchronizer 7 3 System error codes 3 4 3 5 3 11 interconnections 6 5 messages 3 13 signal and data flow 6 6 System Failure 3 15 System Log 2 22 test 2 25 T10 nut 5 13 T15 screw 5 13 Telephone assistance replacement parts 5 1 service 3 33 supplies and accessories 5 1 Test and Inspection Matrix 2 4 Testing See Performance Verification Timebase test 2 25
15. 5 12 ECG Fault 3 13 frequency response 7 4 functional checks 2 17 operational problems 3 20 PCI function 2 35 specifications 7 3 status messages 2 33 tests 2 5 2 32 3 23 ECG Out Sync Connector 4 88 4 91 5 12 Electrodes ordering 5 21 Electromagnetic compatibility EMC 7 22 Energy Select Knob 4 19 5 13 Energy Select Switch 5 8 operational problems 3 30 replacement 4 63 5 23 testing 2 28 Environmental specifications 7 7 7 20 Error code 3 4 3 5 3 11 Event Summary 7 7 Extended Self Test 2 4 2 24 3 19 External assemblies 4 5 External paddles 5 8 FIFTY 50J Maximum 3 14 Flex circuit connection 4 2 Front End FE test 2 26 2 33 Functional Check 2 4 ECG 2 17 Shock Advisory 2 18 SpO2 2 20 Synchronized Cardioversion 2 19 Heart Rate HR function 2 17 Impedance 6 7 Incompatible Data Card 3 17 Indicator functions 6 11 7 2 7 3 Installation 1 3 Instruction Label Set 4 22 5 14 Internal assemblies 4 35 4 101 Internal disposable paddles key component tracking 5 25 Internal subassembly 4 34 IrDA break off PCA 4 48 4 56 IRDA test 2 25 Key See Softkey Index Key Component 4 1 5 2 5 23 Key Inactive 3 17 Keypad See Pacer Keypad Keyscan PCA 5 7 5 23 6 3 6 11 replacement 4 44 4 52 Label Branding Label Set 4 24 5 18 Case Label Set 4 22 5 16 Instruction Label Set 4 22 5 14 Paddle Label Set 5 18 Primary 4 122 removing and replacing 4 25
16. Battery Cover Bottom Case Replacement 1 Check the Battery PCA and the Battery Eject Spring a Ensure the lower edge of the Battery PCA is seated in its slot in the case M4735A Service Manual 4 11 External Assemblies b Check that the Battery Eject Spring is all the way at the bottom of its slot c Check the orientation of the Battery Eject Spring Correct orientation is when the spring is angled slightly toward the Battery PCA and not angled up out of the battery compartment Adjust the angle of the spring as needed by turning it while keeping it in place in its slot 2 Insert a battery to compress the springs and position the PCA a Slide a battery into the battery compartment Be sure the battery stays flat and does not push up out of position b As the battery latches into place it will push the Battery PCA into position and compress both the Battery Eject Spring and the Battery PCA Spring 3 Replace the Battery Cover a While keeping the battery in place replace the battery cover starting with the end by the battery PCA See Figure 4 4 b Insert the tab on the cover into the mating slot next to the battery spring Then lower the cover into position allowing the square post on the cover to mate with the recess in the case ce Replace all 7 screws and tighten Figure 4 4 Installing the Battery Cover Tab on Cover Slot in Cover Battery PCA Square Post on Cover After Repair Conduct P
17. ECG CONDECION taii E EEE A ane eid 4 81 SPO CONNECCION eree eee ee ees 4 84 S EE EE E Oded acre aac cere eens 4 86 AC M ins COMME CION sscpsisscsvencianenastanrnntenasens eera r E E ESE EE EE E e 4 88 ECG Out Syne Connector 5 cic cisossersicasedadadancersachsdedassandbedderdoned EA AES 4 91 Pacer Keypad verserte E E eee eaten 4 92 Repla c ment Top C ASC a sn casnsacescassaicavecpndsedanaseoacsvnsaicensdacnccasbentuaccuadoceeaseoaaamaaneess 4 97 Internal Assemblies Bottom Case aia acussessuaroessutiiaasatiiwianausnieehaadeuaiesall 4 101 Battery PCA een et oR rr ens eNO e NOU Poe ene meee nts Sree ren rere 4 102 Defibrillator Capacitor ses sicidcaseiadervedsiatecsasasetvexiasteveasasabennsansavendsapdennetassteastasienasaaderonts 4 106 Power PCA avacsnaseeusnnesvantunesveennspanureaunee EE EE EE EEE E E EENET EEEE 4 108 Power SUpplY seese EE E 4 112 Patient Connector aga ce ca alae e E E A EEEE EAR 4 118 Replacement Bottom Case sseesseesssseesseseseesertessetsstessreseeesssttsseesseesseessseensseesseeseesset 4 121 Closing th CASS sieciau ninien e i EEEE EEEE E EE A aa 4 123 Replacement Parts OVEIVICW sossenstoseui kavion o E EEEE NEEE E PASEAN EVEA ORENETAN E EEES EEE EAEE EAN ASNES 5 1 Chapter COTS WES gadis ce ated ectescae cas dee E A E E EEE E gate 5 1 Ordering Replacement Parts ca ceciccsnenvsaccesssteaacdeudecacoseucdastns usuaveneeeaneacesnadendasccecamdaaartne 5 1 vii Contents Ordering Supplies and Accessories
18. SpO gt PCA failure Control PCA failure Parameter PCA failure Suggested solution Carefully reseat flex cables between SpO connector and SpO PCA and between SpO PCA and Parameter PCA See Servicing Notes on page 4 1 Replace SpO PCA Replace Control PCA Replace Parameter PCA Reads obviously wrong value Same as above Same as above Noisy intermittent signal Same as above Same as above M4735A Service Manual 3 23 Operational Problems Defibrillation and Cardioversion The following table covers problems that might arise while defibrillating or delivering synchronized cardioversion NOTE Before replacing any parts check to see if the cables and flex circuits are properly connected See Servicing Notes on page 4 1 Table 3 9 Operational Problems Defibrillation and Synchronized Cardioversion Message or Symptom Possible Causes Suggested solution Won t charge in Manual Mode using 1 Paddles failure 1 Confirm paddles problem by charg button on paddles ing using CHARGE key Replace paddles if needed 2 Internal failure in unit 2 Troubleshoot further by e Patient connector or internal wiring e Trying AED Mode failure e Using Diagnostic Mode to run e Power PCA failure Extended Self Test and Defib Meas e Control PCA failure Test Won t charge in Manual Mode using e Patient connector or internal wiring Troubleshoot further by fa
19. They are slightly different lengths and are not interchangeable b Remove the ECG Holder 3 Unlatch and remove the ECG Connector a Release the locking tabs on the metal clip around the ECG connector using a small flat bladed screwdriver Pull and remove the metal clip b Slide the connector cable gasket and ferrite out through the hole Replacement 1 Replace the ECG Connector a Using the new gasket that came with the connector install the gasket in place on the connector Slide the cable through the hole b Align the connector with the notches in the case and insert it in the hole Make sure the gasket is in place properly between the connec tor and the outside of the case c Press in firmly on the connector to compress the gasket Slide the metal clip into place behind the two plastic lugs on the connector being sure it locks into place Use the new retainer clip that came with the connector See Figure 4 39 on page 4 82 4 81 Internal Assemblies Top Case 2 Replace the ECG Holder a Use the new ECG Holder that came with the connector Slide the large hole in the ECG Holder onto the cable and down over the ECG Connector b Loop the ECG Connector under the leg of the ECG Holder with the black rubber ce As the ECG Holder drops into place align the small slot over the threaded post in the case with the bent section down toward the post Be sure the holder fits over the end of the metal clip
20. Tool requirements 4 3 5 3 Top case assembly 4 97 5 12 Trace ECG 3 20 Training required 7 19 V Troubleshooting Visual Inspection 2 4 2 audio tones 3 18 3 29 15 battery and charging circuits 3 31 Data Card 3 32 defibrillation synchronized cardioversion 3 24 display 3 28 ECG monitoring 3 20 error codes 3 4 3 5 3 11 evaluation 3 3 Extended Self Test failures 3 19 methodology 3 2 momentary messages 3 16 pacing 3 26 printer 3 27 repair philosophy 3 1 SpO2 monitoring 3 23 system messages 3 13 tables 3 8 telephone assistance 3 33 unresponsive unit 3 9 Unit Exchange Program 5 4 Unsupported battery message 3 31 Upgrade 1 3 User Interface Test 2 5 Audio Test 2 29 Controls 2 27 Display Test 2 29 Printer Test 2 30 User maintenance 1 3 M4735 90900 Printed in USA April 2006 Fifth Edition TA A T MIA PHILIPS
21. d Loop the cable around the case standoff e Install the gray case standoff onto the threaded post tighten firmly 3 Connect the ECG Connector a Connect the ECG connector cable to the Parameter PCA being sure the connector latches Figure 4 39 Removing the ECG Connector Case Standoff ECG Holder ECG Connector Cable ECG Connector Metal Clip ECG Connection to Parameter PCA 4 82 Removal and Replacement Internal Assemblies Top Case After Repair After repairs are complete perform the following steps 1 If your device has a hooded plastic shield secure it See Reattaching the hooded plastic shield on page 4 71 1 Reassemble the case See Closing the Case on page 4 123 2 Restore the customer s configuration Enter Configuration Mode and reload the customer s configuration from the data card or reconfigure the unit as needed See Configuration Mode on page 2 10 3 Test performance Conduct Performance Verification Testing as described in Performance Verification and Safety Tests starting on page 2 1 M4735A Service Manual 4 83 Internal Assemblies Top Case SpO Connector The SpO Connector optional is located at the back of the top case next to the ECG Connector CAUTION See cautions regarding handling and connection of flex circuits on page 4 1 Preparation 1 Save the configuration If possible save the customer s configuration onto a D
22. quickly Charging Monitoring the battery and controlling the charging process are both handled by the Power Supply The Power PCA receives status information via con nections both directly to the Power Supply and to the battery The Power PCA then sends this status information to the Control PCA via a large ribbon cable The Control PCA processes this information and sends signals to con trol the AC Power and Batt Charge LED s via the Keyscan PCA When the unit is powered on while AC is connected the Power PCA instructs the Power Supply to enter power supply mode M4735A Service Manual System Functional Descriptions Figure 6 3 Power Flow Ce Pads Paddles Power PCA Control PCA ECG Pads Data Control 50 pin ribbon cable Data amp Control 30 pin ribbon Parameter PCA SPO PCA ECG Monitoring Electrodes CH Defib Capacitor Power Supply Battery PCA Data amp Control 50 pin ribbon cable AC Mains gt I SLA Battery Keyscan PCA IrDA Interface Energy Select Switch Lp J5 J4 J12 J13 J10 J11 So M Data J2 20 pin ribbon J1 J3 ______ Bright Control J2 6 pin ribbon flex circuits Main Keypanel Charge Shock Sync On Off LED Power amp Batt LEDs flex circuits acing Keypanel 6 14 LED
23. select the Defib Meas Test and press ENTER 2 Charge and Disarm a 200J shock a Use the Energy Select control to select 200J b Press CHARGE to charge the defibrillator e Press DISARM 3 Check the analyzer readings Read the delivered energy indicated by the defibrillator analyzer It should be OJ or be blank 4 Check the values displayed by the M4735A The results displayed by the M4735A should be as follows Available Energy Not recorded failure if gt 0 Msec to charge Ignore tested earlier Delivered energy Blank Impedance Blank Peak current Blank Defib errors Not recorded failure if any reported M4735A Service Manual 2 4 Performance Verification Tests Safety Tests This section covers tests of the M4735A s electrical safety The Philips Safety Test designation for each test is provided for reference of Philips service personnel Test Notes e Use the procedures called out by the manufacturer of the safety ana lyzer in use e Only test at the AC Mains line voltage used in the customer s facility there is no need to test both 120 VAC and 240 VAC e Test both Normal and Reverse Polarity line connections for each test and record the worst case value e Ifa ground reference point is needed for the testing use the metal nut on the ECG Out Sync connector Earth Leakage Leakage through earth ground wire of AC power cord 1 Normal Condition both AC line connections intact Should
24. 1 Chapter Contents 5 pa cessasessucia sia ndevacevqcdon EEE ERE E EE TEA EEE EEEN 3 1 Repair Philosophy ssssessisosesiriisnieeros gei eesi aE a EA EK Ea EE RERS E 3 1 Equipment Req ired sissisorsiorisisseiieiisoes niseni nesies E iia Eeki iare 3 1 Troubleshooting and Repair Methodology ssssesssessssseeessesessseressrrssesesesreessresseeseeee 3 2 Methodology Overview s ssesssessesessssesssessesssersssrresstessrsserssseessseessresstesseeesseeesseesseesseenset 3 2 Eyal ate moneen E E E E E E ES 3 3 Troubles HOO s atsaaen naianisaisenweuietians ans ape e e REE EIS UREE in EASED 3 5 System EOTS oerni esie dass ear N E EEE EE E EE N ERS 3 5 Contents REPUT sizesesevoizew sparse iiin aeae a oa ehoancsi eee i Glade ei 3 6 Check the TEP AIT assesoires onien ra EEE EE E aca eaa dares 3 6 ai a E E E A E E E Raketaeaebuneeaase 3 7 Troubleshooting Tables siscnrneneiiosinirsi ninnisin eaae ia aiie 3 8 Using the Tables ssessisroriri cierran oeenn aea A EEAS E EE EEE EEE 3 8 General ProDl msS sairipenti cea aera E EAEE AEE ENRE EEE AEE A 3 9 Unit We SPOS seirer aoa cde as KEE A E E E E 3 9 Errof CodeS ec za cisne Ae eae etnies ca eee iari nc acide EEEE AE EEAS E OPEK EnS EERENS EREE 3 11 System MGSSABES 25 aasseseacssancicecasededassandudesasuenensnsoebacvagneiiasasmiedasvannedeuasuepeavenenoaauuouaeonase 3 13 Mo m ntary Messages suisse iiinis arpa tats aud dua a anoeia E ae a iS 3 16 Audio TONES siaine liesan aidi a o a aaiae a a e iaaa naaa E
25. 24 e Run the Printer Test page 2 29 e Print and Verify the System Log page 2 22 Internal Repairs If the case was opened regardless of what the repair involved all of the Performance Verification Tests must be performed beginning with Visual Inspection on page 2 15 M4735A Service Manual 2 3 Test and Inspection Matrix Test and Inspection Matrix Table 2 1 summarizes performance verification tests and inspections for the M4735A including test name test or inspection to perform expected test results and data to record Table 2 1 Performance Verification and Safety Tests Test Group Name Test or Inspection to Perform Expected Test Results Data to Record x p pass or f fail Visual Inspection V Inspect the unit accessories cables etc for signs of wear damage corrosion or miss ing items as described on page 2 15 If no unusual damage no cor rosion no missing items x p then Visual Inspection passes V x Example V p 24 Includes Data Card Test and time date check uration and options x p then Extended Self test passes Functional Checks In normal Operating Mode If all functions respond as F x F perform the following func expected x p Example F p tional checks e ECG page 2 17 e Waveform clear on display HR correct on display HR alarm works Leads off pads off indicators as expected e Shock Advisory page 2 18 e Shock Advise
26. 6 15 7 2 Charge Time Less than 3 seconds to 200 Joules with a new fully charged M3516A SLA battery pack at 25 C Less than 15 seconds to 200 Joules when powered by AC with no battery installed Patient Impedance Range 25 to 180 Ohms Manual Mode Manual Output Energy Delivered 2 3 5 7 10 20 30 50 70 100 150 200 Joules Controls Manual AED On Energy Select knob Charge Disarm Shock ECG Lead Select SpO On Off SpO Alarms HR Alarms Sync On Off Pacer Pacer Start Stop Pacer Rate Pacer Current Pacer Mode ECG Gain Volume Strip Summary Mark Indicators EL display for ECG waveform and text prompts Audio alerts QRS Beeper Charging Tones for sync and asynchronous modes AC Power LED Battery Charging LED Sync LED Pacer LED Armed Indicators Charge done tone and available energy indicated on display Energy Selection Front panel rotary knob Charge Control Front Panel 2 key or button on paddles Specifications M4735A Service Manual Specifications Shock Control Front Panel 3 key or buttons on paddles Synchronizer SYNC message appears on the monitor and is annotated on the printer if printing while in Sync Mode An audible beep sounds with each detected R wave while a tick mark on the monitor and printed strip indi cate the discharge points Synchronizer delay is less than 60 msec from peak of R wave to peak current of the defibrillation discharge
27. 6 4 See also Control PCA PCI Paddle Contact Indicator 2 35 6 7 Peak to Peak reading 2 34 Performance Verification Configuration Mode 2 10 Diagnostic Mode 2 11 Diagnostic tests 2 21 equipment 2 9 functional checks 2 17 required testing levels 2 2 safety tests 2 42 Test and Inspection Matrix 2 4 Visual Inspection 2 4 2 15 Power Indicator Matrix 3 31 Power modules electromagnetic compatibility 7 22 Power PCA 6 3 discharging 6 9 removal and replacement 4 108 5 7 5 23 Power Supply 5 8 5 23 6 4 6 12 capacitors 4 26 replacement 4 112 Precautions 7 19 electromagnetic compatibility 7 22 Preventive maintenance 1 3 Primary Label 4 122 Printer 6 4 6 12 Check Printer 3 16 control keys 2 28 ECG functions 2 18 Event Summary 7 7 Extended Self Test 2 24 operational problems 3 27 printhead 4 6 removal and replacement 4 7 5 7 required testing 2 3 specifications 7 5 System Log 2 22 testing 2 30 Printer paper ordering 5 20 QRS beeper 3 23 Radio frequency RF interference 7 22 RAM test 2 25 Reassembly 4 3 Repair philosophy 1 3 3 1 3 6 Replacement connectors 5 12 electrical assemblies 5 6 Key Components 5 2 5 23 M4735A Unit Exchange Program 5 4 mechanical assemblies and parts 5 10 ordering 5 1 special tools 5 3 subassembly 1 3 supplies and accessories 5 1 5 19 tables 5 5 Required testing levels External Repairs No Trouble Found 2 2 Internal Repairs 2 3 printer replacement 2
28. Assemblies Other Replacement PCAs These PCAs come with specific parts as noted Table 5 3 Other Replacement PCAs Description Part Number Notes Power PCA with Pacing M4735 68110 Power PCA without Pacing M4735 68111 Keyscan PCA M4735 66120 For devices with EL Display M4735 66125 For devices with LCD Display SpOy PCA M4735 66 126 Parameter PCA M4735 66140 Includes standoffs for SpO PCA Battery PCA M3500 66130 Includes spring cables Main Fuse Items marked with an asterisk contain Key Components which require tracking See Table 5 18 on page 5 23 Other Electrical Assemblies These assemblies come with specific parts as noted Identifying the Display Type NOTE The HeartStart XL supports two types of Display assemblies EL or LCD If the device has an LCD Display an LCD Display label appears on the primary label located on the bottom case Additionally devices with serial numbers USOOIXXXXX and US002XXXXX will have an EL Display Devices with US003XXXX may have either and you will need to check the label Devices with USO04XXXXX will have an LCD Display It is important to note the Keyscan PCA is different depending on the Display type Table 5 4 Other Electrical Assemblies Description Part Number Notes Printer Assembly M4735 68520 Printer Door Kit M4735 64521 Contains one sliding door one pivot door one right spring and one left spring
29. Card must be inserted or removed only when the unit is powered off A Data Card inserted while the power is on will not be recognized by the unit If a Card is removed while the power is on its stored data may be corrupted and rendered unreadable Theory of Operation Overview 7 Specifications ee Overview This section provides e Specifications for the M4735A e Symbol Definitions for symbols appearing on the M4735A e Safety related information and e Electromagnetic compatibility information Specifications Defibrillator Waveform Biphasic Truncated Exponential Waveform parameters adjusted as a function of patient impedance For details of waveforms delivered see the Waveforms section of this chapter Shock Delivery Via multifunction defib electrode pads or paddles Delivered Energy Accuracy See Table 7 1 M4735A Service Manual 7 1 Specifications Table 7 1 Delivered Energy J vs Load Impedance Selected Load Impedance ohms Energy Accuracy J 25 50 100 125 150 2 1 9 2 0 2 1 2 1 2 1 1J 3 2 8 3 0 3 2 3 2 3 1 2J 5 4 7 5 0 5 2 5 4 5 2 2J 7 6 6 7 0 7 3 7 5 7 3 2J 10 9 3 10 0 10 4 10 7 10 4 2J 20 18 6 20 0 20 8 21 4 20 8 4J 30 27 9 30 0 31 2 32 1 31 2 4J 50 46 7 50 0 52 3 53 5 52 1 15 70 65 4 70 0 73 1 75 0 72 9 15 100 93 5 100 0 104 7 107 2 104 4 15 150 140 3 150 0 156 8 161 0 156 5 15 200 187 0 200 0 209 3 214 6 208
30. Case on page 4 26 Removal 1 Disconnect the Control PCA Five Cables a 4 35 Disconnect the large ribbon cable on the left side of the Control PCA connects to the Power PCA See Figure 4 20 on page 4 39 Disconnect the smaller ribbon cable on the left side of the Control PCA connects to the Parameter PCA Disconnect the small ribbon cable at the rear of the PCA connects to the printer This requires releasing latches on the ends of connector Push the latches out and down to release them Disconnect the small 2 wire connector at the front edge of the PCA connects to the speaker This connector has a latch on the top Push down on the latch to release it and wiggle the connector side to side to pull it out Disconnect the large ribbon cable on the right side of the Control PCA connects to the Keyscan PCA Removal and Replacement Internal Assemblies Top Case Figure 4 20 Control PCA Connections Data Card Receptacle Ribbon Cable to Printer Q an Sa 50 A Sop Q D 2 3 oe A Parameter PCA 2 Wire Cable to Ribbon Cable to Speaker Ribbon Cable to Display Control PCA Lithium Battery Under Cable Keyscan PCA 4 39 M4735A Service Manual Internal Assemblies Top Case 2 Remove the screws a Remove the eight screws around the edges of the Control PCA See Figure 4 21 on page 4 40 b Remove the one screw near the center of the PCA Be careful not to damage any ne
31. Causes Printer failure Control PCA failure Suggested solution Replace Printer Replace Control PCA Display The following table covers problems that may arise with the display NOTE Before replacing any parts check to see if the cables and flex circuits are properly connected See Servicing Notes on page 4 1 Table 3 12 Operational Problems Display Symptom No response all light or all dark No audio prompts and no LEDs lit No response display completely dark Possible Causes Display failure Control PCA failure Keyscan PCA failure Subassembly failure other than those noted above Suggested solution Replace display Replace Control PCA Replace Keyscan and Control PCA See Table 3 1 Unit Unresponsive for guidance indicator LEDs Pacer Keypad or Main Keypad failure Fails Display Test in Diagnostic Mode Display failure Replace Display display problem other then symptoms above Control PCA failure Replace Control PCA Fails Display Test in Diagnostic Mode Control PCA failure Replace Control PCA Replace Pacer Keypad or Bezel Assem bly 3 28 Troubleshooting Audio The following table covers problems that may arise with the audio tones or voice prompts Operational Problems NOTE Before replacing any parts check to see if the cables and flex circuits are properly connected See Servicing Notes o
32. ECG Monitorin sassis er E E teres 7 3 Display EL eregine E E od aed ERT E R 7 4 Display CCD sccosntecschetectctaceeee che gens Deadectsdechete st coca deta e aN SN ies aaa iGS 7 4 TS EY eaire toasts meester canoe tae vette eng oct A Ee A onda esas aE EREE SE EE E 7 5 Thermal Array Printer o 223sis ci sibs caeudeniexieacdeucteadaieaiietied an che ueneeceadtel E iaaa Esika ienai 7 5 Noninyasive Patin pesca dete teii nissin ar RE AR E E eae acy ects 7 6 SpO2 P lse Oty oc pas seca dsaevasau re ecg Err r i EE sevens E EE E Eea EET Ee 7 6 Event UOT ABS ean e panacea saat yisnia casas as epee ede ed eae 7 7 G neral ecset cet uba eauastpwcinissa ats E E E Gaba ededtanes EEEE 7 7 Environmental odeictaiecsscesconte trees bendbiesadva seca pews ta nr Eie aTe Ea SENEESE E EEES DATES Eain 7 8 WaveformS cessisse eneon ero iaer iho oe man EEE EE EEEE EREN 7 9 Symbol Definitions cc cinictegadmissumncnsiadeausainlannidaamacnsldeauateeuaAnimamadaaniens 7 16 Safety ONS MICRA GIONS scp scriccxateascycnsils seuss ierant tetor Erea E Erene ANONA EE EN EC EESE AKSNES ai EEEa 7 19 Electromagnetic Compatibility sscnsinaiawiassatsiamianreawastamameamwusaraes 7 22 Reducing Electromagnetic INErhereneS sccisinscoanschaadeaacdanscaastenteaaetaatearsthacbentendeeeaeetonies 7 22 Restrictions for Use sescrmgsecsrscasencdesaca ya Ua o nae a E E a 7 23 Immunity Level Devices with Serial Numbers USOOIXXXXX eerren 7 23 Emissions and Immunity Devices with Serial Numbers US002XXXXX
33. Internal Paddles 2 8 cm Switchless M1744A 2 8 cm Switchless M1744A Date Code Internal Paddles Internal Paddles 7 5 cm Switched M4741A 7 5 cm Switched M4741A Two Date Codes Internal Paddles Internal Paddles paddles connector 6 0 cm Switched M4742A 6 0 cm Switched M4742A Two Date Codes Internal Paddles Internal Paddles paddles connector 4 5 cm Switched M4743A 4 5 cm Switched M4743A Two Date Codes Internal Paddles Internal Paddles paddles connector 2 8 cm Switched M4744A 2 8 cm Switched M4744A Two Date Codes Internal Paddles Internal Paddles paddles connector Internal Paddles M4740A Internal Paddles M4740 61601 Date Code Adapter Cable Adapter Cable Pads Cables Defib Pads Cable bar M3507A Defib Pads Cable bar M3507 6007 Date Code rel connector rel connector Defib Pads Cable M3508A Defib Pads Cable M3508 60008 Date Code plug connector plug connector 5 26 Replacement Parts Table 5 18 Key Components Continued Key Components Battery Charger Sealed Lead Acid Bat M3516A Sealed Lead Acid Bat 1420 0561 Date Code tery tery Battery Charger Kit M4747A Sealed Lead Acid Bat 1420 0561 Date Code Battery Charger tery Adapter AC Power Module Battery AC Power Module M3517 60000 Date Code M4735A Service Manual 5 27 Key Components 5 28 Replacement Parts Overview 6 Theory of Operation Overview This chapter describes the internal operation of the M4735A T
34. Internal Paddles Switched Switchless MI741A 7 5 cm Switchless Internal Paddles M1742A 6 0 cm Switchless Internal Paddles M1743A 4 5 cm Switchless Internal Paddles M1744A 2 8 cm Switchless Internal Paddles M4741A 7 5 cm Switched Internal Paddles M4742A 6 0 cm Switched Internal Paddles M4743A 4 5 cm Switched Internal Paddles M4744A 2 8 cm Switched Internal Paddles M4740A Internal Paddles Adapter Cable 989803127121 Large Disposable Switched 989803127131 Medium Disposable Switched 989803127141 Small Disposable Switched 989803127151 Large Disposable Switchless 989803127161 Medium Disposable Switchless 989803127171 Small Disposable Switchless ECG Cables M1500A 3 lead ECG Trunk Cable AAMI M1510A 3 lead ECG Trunk Cable IEC M1520A 5 lead ECG Trunk Cable AAMI M1530A 5 lead ECG Trunk Cable IEC Sync Cable M1783A 12 pin Sync Cable Monitoring Electrodes M2202A High Tack Foam ECG Electrodes 5 electrodes pouch 300 electrodes case M4735A Service Manual 5 2 Supplies amp Accessories 5 22 Table 5 17 Upgrades Supplies and Accessories Continued Part Number Description SpO Cables Sensors MII91A Adult Reusable SpO Sensor M1192A Pediatric Reusable SpO Sensor M1194A Adult Pediatric Ear Cli
35. M4735A Service Manual 3 11 General Problems Table 3 2 Error Codes Continued Error Code 90000 90002 Possible Causes Self Test failure RAM ROM or Gate Array Corrective Actions 1 Replace lithium battery 2 Replace Control PCA 90003 Self Test failure Data Card circuits Replace Control PCA 90004 and 90005 Self Test failure Codec time base 1 Replace lithium battery 2 Replace Control PCA 90006 Self Test failure SpO _ 1 Replace SpO PCA 2 Replace Parameter PCA 3 Replace Control PCA 90007 Self Test failure Pacer or Defib This error 1 Run the self test again making sure can be caused by pressing the Pacer key during not to touch the unit during the test the self test 2 Replace Power PCA 3 Replace Control PCA 90008 Self Test failure Pacer or Defib This error 1 Make sure that the paddles are firmly can be caused by paddles improperly seated in seated in the pockets and run the the pockets self test again 2 Check the circuit pathway from the paddles to the Power PCA 3 Replace Power PCA 4 Replace Control PCA 90009 Self Test failure Front End 1 Replace Power PCA 2 Replace Parameter PCA 3 Replace Control PCA 9000A Lithium backup battery failure 1 Replace lithium battery 2 Replace Control PCA A0000 A7FFF Data Card failure 1 Replace Data Card 2 Replace Control PCA A8000 AFFFF Data Archival error 1 Replace Data C
36. See Control PCA on page 4 38 Reassemble the case See Closing the Case on page 4 123 Restore the system configuration Use the Language Support Tool to restore the unit s serial number and to select whether SpO gt hardware is installed or not See The Language Support Tool on page 2 12 Restore the customer s configuration Enter Configuration Mode and reload the customer s configuration from the data card or reconfigure the unit See Configuration Mode on page 2 10 Test performance Conduct Performance Verification Testing as described in Performance Verification and Safety Tests starting on page 2 1 Internal Assemblies Top Case Control PCA The steps below describe how to remove and replace the Control PCA The Control PCA contains the unit s operating software including the data for the voice prompts All Control PCAs are American English part number M4735 68100 Installing a new Control PCA requires the use of the Language Support Tool to set the Control PCA to the correct language See Table 5 2 on page 5 6 for part numbers NOTE Simply removing and replacing the existing Control PCA does not require the Language Support Tool Preparation 1 Save the configuration If possible save the customer s configuration onto a Data Card or print the configuration so the configuration can be restored after the repair is complete 2 Open the case safely See Opening the
37. See Energy Select Switch on page 4 63 3 Snap the Bezel Assembly onto the front of the case a Guide the ribbon cables and the flex circuits through their respective openings in the case b Guide each of the locking clips through its opening in the case c Press the Bezel Assembly into place Press firmly to compress the gasket on the case and allow the clips to latch Be sure all 6 locking clips engage their mating tabs 4 Replace the plastic shield if present a For devices with an LCD Display Guide the 8 wire bundle and flex circuit through the opening in the center of the plastic shield b For devices with an LCD Display Let the grounding wire hang off the to the side of the metal shield 5 Replace the two threaded standoffs Press firmly to compress the gasket and allow the standoffs to engage the threads on the Bezel Assembly M4735A Service Manual 4 61 Internal Assemblies Top Case 4 62 After Repair After this repair is complete perform the following steps 1 Replace and reconnect the Keyscan PCA See Keyscan PCA EL Display on page 4 44 or Keyscan PCA LCD Display on page 4 52 Replace the shield plate See Shield Plate on page 4 42 Replace and reconnect the Control PCA See Control PCA on page 4 38 Reassemble the case See Closing the Case on page 4 123 Restore the customer s configuration Enter Configuration Mode and reload the customer s configuration
38. Settings item is highlighted Then press the ENTER softkey to access those settings e To print out a strip with all the current configuration choices select Print All Settings and press ENTER e To store the configuration settings on a Data Card select Save Set tings to Data Card and press ENTER When prompted with Save Set tings to Data Card press SAVE e To load configuration settings from a Data Card select Load Settings from Data Card and press ENTER When prompted with Load Settings from Data Card press LOAD Performance Verification and Safety Tests Configuration and Diagnostic Modes 5 Exit Configuration Mode e To exit Configuration Mode turn the unit off e Wait 2 seconds Remove the Data Card by pressing the black eject button and pulling the Data Card from the compartment Figure 2 1 Softkey Numbers Sot jad N Ww Diagnostic Mode These instructions describe how to enter Diagnostic Mode Once in Diagnostic Mode you can do the following e Print the System Log See System Log on page 2 22 e Run the Extended Self Test See Extended Self Test on page 2 24 e Run other Diagnostic Tests See Diagnostic Tests on page 2 21 1 Power off Make sure the unit s power is off 2 Enter Diagnostic Mode Press softkeys 4 and 6 at the same time and hold them down while turning the Energy Select Switch to Manual On See Figure 2 1 for softkey numbering 3 Wait for the un
39. a nio a E A 4 1 Key Components 20g sag sechadecncbedezeacedeactaeichan ce cladalendies dayaeaaacse Saanika es inae aisi aisian 4 1 Removal Handling and Replacement s ssseeeeeseessessesereseereesttsrrseresrrsrseresressrseresressrese 4 2 Tool Requirements sissisiisissiissisisiicesiiassies tineo iss rnEeE Reke SEESE SEENE SEE RESES iiaae 4 3 Disposal srneci a R A E EE E eee ee 4 4 External Assembles siessen ie e ea aE e a ea iiaea 4 5 User Replaceable Parts and Accessories es sesesssseseseseseseressseesstessrsseresseessseesseesseeseee 4 6 User M int nanCE ndesvesgsnd uci easta iasgair s EE RSET ETE E EEE EO EEES 4 6 Printer Assembly ssininisiiirrisiiorini sssaaa teaxadiaasnchecetaiauacentateraauinets 4 7 Battery COVE alee tare eee a ceeds aa i eaa E a ata aie RES tee Ea ESS 4 11 Mait FUS aciiriogateesj tiana aa ea a AETA Ea eiia e E E 4 13 Contents Battery Eject Assembly jaisisssceccsssntecd sastavansasdacecsaleenensasenendusasiteed aasdeezevasiscadvasiveassieanentias 4 15 Data Cat DOOL serres seteia gesessen e entse rar a E ES E E EEE E EE E E 4 17 Energy Select TOU ciarn A E EE Et 4 19 Paddle Holdets oneens E E acute A I E R 4 20 Label Sieira aee r e a Ra a a AE S 4 22 Label Descriptions 2icic2iitctnniediieen dei aceeee nla ee ted 4 22 Removing and Replacing Labels guscsccuicduszsusswsvadetesdscmetvoungavin derasuddvawcosnsedteadinoarewmnedesabons 4 25 Ope ning the CASE a hssascnsasindesretueesacweerstvevade e i i ei i Ti 4
40. all ofthe Keyscan PCA failure keys don t respond correctly Control PCA failure e Keypanel failure Suggested solution Diagnose as follows In Diagnostic Mode run Controls test and identify all unresponsive keys e Some keys don t respond Replace 1 Keyscan PCA 2 Control PCA 3 Bezel Assembly e All keys don t respond Replace 1 Keyscan PCA 2 Control PCA The Energy Select Switch doesn t respond correctly e Keyscan PCA failure e Control PCA failure e Switch failure Diagnose as follows In Diagnostic Mode run Controls test and test Switch e Some switch selections don t respond Replace 1 Switch 2 Control PCA 3 Keyscan PCA e All switch selections don t respond Replace 1 Keyscan PCA 2 Control PCA 3 Switch 3 30 Troubleshooting Operational Problems Battery and Charging Circuits The following tables cover problems that may arise with the Battery or the unit s battery charging circuits NOTE Before replacing any parts check to see if the cables and flex circuits are properly connected See Servicing Notes on page 4 1 Table 3 15 Operational Problems Battery Charging Circuits Symptom Possible Causes Suggested solution Low battery life depletes quickly in Very frequent use not charging long Charge fully between uses Use spare use enough between uses batteries and adapters as needed to allow complete charging Batter
41. an asterisk contain Key Components which require tracking See Table 5 18 on page 5 23 M4735A Service Manual 5 11 Mechanical Assemblies Other Mechanical Assemblies These assemblies come with specific parts as noted Table 5 8 Other Mechanical Assemblies Description Part Number Notes Data Card Door Assembly M4735 69560 Includes door latch pivot spring assembly Paddle Holder Assembly M4735 69561 Includes plastic retainer metal clip screws Note The metal clip is also available separately by ordering part number M4735 40019 Battery Eject Assembly M3500 69561 Includes catch button spring Top Case Assembly M4735 69551 Includes Speaker Label Branding Label Hex Standoffs for Keyscan PCA Case Standoffs Printer cable IRDA lens and ECG SpO hole plug retainer clips and gaskets Bottom Case Assembly M4735 69550 Includes Data Card Door Battery Cover Battery Eject Mechanism Hole Plug with gasket case gaskets rubber feet Note When ordering the Bottom Case be sure to order the Primary Label as well When ordering be prepared to provide all the information from the existing label model number serial number options etc plus customer information name address and information identifying the service person name address Items marked with an asterisk contain Key Components which require tracking See Table 5 18 on page 5 23 Connector Assemblies T
42. any errors by running the self test again making sure that no one touches the unit during the test Table 3 2 Error Codes Error Code Possible Causes Corrective Actions ess 00000 00400 Defib failure charging circuits 1 Replace Power PCA 2 Replace Control PCA 01000 Defib failure biphasic processor 1 Replace Power PCA 2 Replace Control PCA 02000 Leads front end failure 1 Replace Parameter PCA 2 Replace Control PCA 04000 Pacer failure Replace Power PCA 08000 Processor error Replace Control PCA 10000 1FFFF System monitor failure 1 Cycle power 2 Replace Control PCA 10001 Processor Synchronization Error Cycle power See System Errors on page 3 5 10004 Synchronization Time Out Cycle power e If error does not repeat run ALL Per formance Verification Tests If unit passes all tests the unit can be returned to service e If error repeats replace Control PCA 20000 2FFFF Front end failure 1 Replace Control PCA 2 Replace Parameter PCA 30000 3FFFF Pacer failure 1 Replace Power PCA 2 Replace Control PCA 40000 4FFFF Monitor processor failure 1 Replace Control PCA 2 Replace Parameter PCA 50000 SFFFF SpO problem 1 Replace SpO PCA 2 Replace Parameter PCA 3 Replace Control PCA 60000 6OFFFF Advisory Failure Replace Control PCA 80000 8FFFF IRDA failure 1 Replace Keyscan PCA 2 Replace Control PCA
43. are intended as a broad check of the unit s performance and are designed to complement not replace the Diagnostic Tests described later If all elements of a test pass record that test as a PASS and return to the main diagnostic menu by pressing MAIN If there is any failure begin troubleshooting and repairing as needed See Troubleshooting on page 3 1 Check Page ECG Functional Checks 2 17 Shock Advisory Functional Check 2 18 Synchronized Cardioversion Functional Check 2 19 Sp02 Functional Check 2 20 ECG Functional Checks This section describes how to check the operation of the ECG functions Each of the ECG checks assumes the unit and the simulator are still set up as they were at the end of the previous ECG check To check ECG display and Heart Rate HR functions 1 Set up the simulator a Connect the ECG simulator to both the Pads input and the 3 or 5 lead ECG cable b Set the simulator for normal sinus rhythm NSR 1mV amplitude at some nominal rate e g 60 bpm 2 Set up the M4735A Set the M4735A to Manual operating mode not Diagnostic Mode 3 Check the displayed ECG Using the LEAD SELECT softkey verify that the display shows a normal ECG with a clean baseline for both Pads and Lead II 4 Check the Heart Rate HR Verify that the Heart Rate HR displayed is correct 5 Check Leads Off a Disconnect the ECG simulator from the pads cable and verify that the display shows a dashed line in
44. be lt 300 uA UL 120 VAC Should be lt 500 uA IEC 240 VAC Record as aaa 2 Single Fault Condition one AC line connection open Should be lt 1000 uA Record as bbbb 2 42 Performance Verification and Safety Tests Performance Verification Tests Patient Lead Leakage Leakage out of Source or into Sink patient connected inputs Applied Parts 1 ECG leads IEC Type CF 1 Source a Normal Condition both AC line connections and earth ground intact Should be lt 10 uA Record as ce b Single Fault Condition separately open neutral and open earth each in turn Should be lt 50 uA Record as dd 2 Sink a Single Fault Condition is with AC Mains voltage on Applied Parts both AC line connections and earth ground intact Should be lt 50 uA Record as ee b Normal Condition unit plugged into AC Mains and in Standby mode Should be lt 10 uA measured between all leads and earth 3 Auxiliary each lead to every other lead record worst case value a Normal Condition both AC line connections and earth ground intact Should be lt 10 uA Record as ff b Single Fault Condition separately open neutral and open earth each in turn Should be lt 50 uA Record as gg M4735A Service Manual 2 43 Performance Verification Tests 2 External Paddles pads IEC type BF 1 Source a Normal Condition both AC line connections and
45. biphasic semi automated external defibrillator This portable lightweight device offers two modes of operation for defibrillation e Semi Automatic External Defibrillation AED Mode e Manual Mode In AED Mode the M4735A analyzes the patient s ECG and advises the clinician whether or not to deliver a shock Defibrillation is performed through multifunction defib electrode pads In Manual Mode the M4735A turns control of the defibrillation process over to the clinician The clinician analyzes the patient s ECG decides if defibrillation is advised and determines the energy setting for defibrillation Defibrillation is performed either through multifunction defib electrode pads or through paddles Manual Mode also allows the clinician to perform synchronized cardioversion and offers optional noninvasive pacing using a monophasic waveform ECG monitoring can be accomplished in either mode using one of 3 methods e ECG from the defib pads e 3 lead ECG using separate monitoring electrodes e Optional 5 lead ECG using separate monitoring electrodes Optional pulse oximetry SpO monitoring is available in both modes as well The M4735A automatically stores critical events such as shocks and alarm violations in its internal memory An Event Summary may be printed at any time The M4735A also enables you to store data and events on an optional HeartStart XL compatible Data Card see Chapter 5 for a listing for down loading to the
46. customer issues The Language Support tool enables you to load new software onto the unit Using the Language Support Tool 1 Save the configuration to a Data Card a Make sure the unit is powered off and have either a fresh battery installed or the AC power cord plugged in Follow the instructions in Configuration Mode on page 2 10 to save the configuration to a Data Card Performance Verification and Safety Tests The Language Support Tool 2 Activate the Language Support Tool a Insert the Language Support Tool data card into the unit b Press softkey 7 and Mark at the same time and hold them down while turning the Energy Select Switch to Manual On See Figure 2 1 for softkey numbering 3 Follow the screen prompts a Press YES to continue The message Upgrade software found Proceed to Program is dis played b Press Yes to set the unit s language Do not press any keys or touch the unit until the process is complete ce Select whether SpO hardware is installed or not as appropriate d Program in the unit s serial number e Ifthis is an SpO upgrade the serial number should already be present In this case verify it against the factory applied label on the bottom of the case e If this is a Control PCA replacement program in the serial num ber found on the factory applied label on the bottom of the case using the softkeys as instructed on the screen Be sure to program it in ac
47. d Once the screws are all out and accounted for place the unit on the work surface rightside up Removal and Replacement Opening the Case Figure 4 15 Removing the Case Screws Screw Located In Power Supply Screws Battery Compartment Bottom Section of Case Handle 6 Open the case a Start opening the case at the back edge to break any adhesion along the gasket b Pull the back of the top case up slightly c Then pull up the front of the top case while sliding it rearward to give the Eject button more room to clear the bottom case M4735A Service Manual 4 29 Opening the Case 7 Pivot the top case to a vertical position a Once the case halves are separated pivot the top case to the right as shown in Figure 4 16 b Stop when the top case is resting on its edge next to the bottom case CAUTION Do not proceed with the next step until you are sure the power supply capaci tors have been discharged See Discharge the Power Supply Capacitors on page 4 26 8 Disconnect the case halves a Disconnect the large ribbon cable from the Power PCA connects to Control PCA b Disconnect the single wire from the Power PCA by pulling straight up with needle nose pliers connects to Keyscan PCA ce Disconnect the AC input from the Power Supply by compressing the 2 latches on the connector pulling the connector straight out from the Module Figure 4 16 Case Opened to Vertical AC Input to Power Sup
48. e lt 500 uA IEC 240 VAC Earth Leakage Current If Single Fault Maximum leak SF Single Fault open neutral age current oe e lt 1000 uA then Earth Leakage Safety test passes Patient Lead Leak ECG Patient Cable If readings are as expected S3 P aa bb cc dd ee ff ggg age S3 hhh iii jj kk M1 Example S32P 9 49 49 10 50 50 100 499 4750 9 49 83 e Source lt 10uA Normal Condition aa e Source Single Fault lt 500A condition open earth open neutral bb e With Mains on applied part lt 50uA then Patient Lead Leakage Safety test passes If readings are as expected lt 10uA lt 50uA lt 50uA then Patient SPO Leakage Safety test passes M4735A Service Manual Test and Inspection Matrix Table 2 1 Performance Verification and Safety Tests Continued Test Group Name Test or Inspection to Perform External Paddles Pads e Source Normal Condition ggg e Source Single Fault Condition hhh e With Mains on applied part Single Fault Condition iii Data to Record Expected Test Results ppacenon inl If readings are as expected lt 100 uA lt 500 uA lt 5000 uA then External Paddles Pads Safety test passes Internal Paddles e Source Normal Condition jj e Source Single Fault Condition kk e With Mains on applied part Single Fault Condition Ill If readings are as expected lt 10uA lt 50uA lt 100 uA then Inter
49. earth ground intact Should be lt 100 uA Record as hhh b Single Fault Condition separately open neutral and open earth each in turn Should be lt 500 uA Record as iii 2 Sink Single Fault Condition with AC Mains voltage on Applied Parts both AC line connections and earth ground intact Should be lt 5000 uA Record as jjjj 3 Auxiliary each lead to every other lead record worst case value a Normal Condition both AC line connections and earth ground intact Should be lt 100 uA Record as kkk b Single Fault Condition separately open neutral and open earth each in turn Should be lt 500 uA Record as U 2 44 Performance Verification and Safety Tests Performance Verification Tests 3 Internal Paddles IEC type CF 1 Source a Normal Condition both AC line connections and earth ground intact Should be lt 10 uA Record as mm b Single Fault Condition separately open neutral and open earth each in turn Should be lt 50 uA Record as nn 2 Sink Single Fault Condition with AC Mains voltage on Applied Parts both AC line connections and earth ground intact Should be lt 100 uA Record as ooo 3 Auxiliary each lead to every other lead record worst case value a Normal Condition both AC line connections and earth ground intact Should be lt 10 uA Record as pp b Single Fault Condition se
50. frequency ranges Field strengths from fixed transmitters such as base stations for radio cellular cordless telephones and land mobile radios amateur radio AM and FM radio broadcast and TV broadcast cannot be predicted theoretically with accuracy To assess the electromagnetic environment due to fixed RF transmitters an electromagnetic site survey should be con sidered If the measured field strength in the location in which the HeartStart XL is used exceeds the applicable RF compliance level above the HeartStart XL should be observed to verify normal operation If abnormal performance is observed additional measures may be necessary such as re orienting or relocating the HeartStart XL d Over the frequency range 150 kHz to 80 MHz field strengths should be less than 3 V m M4735A Service Manual 7 27 Electromagnetic Compatibility 7 28 Table 7 8 Electromagnetic Immunity Nonlife Supporting Functions Immunity IEC 60601 Compliance Electromagnetic Environment Test Test Level Level Guidance Portable and mobile RF communications equipment should be used no closer to any part of the HeartStart XL including cables than the recommended separation distance calculated from the equation applicable to the frequency of the transmitter Recommended Separation Distance Conducted RF 3 Vrms 3 Vrms IEC 61000 4 150 kHz to 80 a d 1 2VP Specifications Electromagnetic Compatibility
51. halves b Turn the case upside down holding the halves together with your hands and shake it to double check for loose hardware inside c Look into the screw holes at the back corners of the case where the tall case standoffs are located Check that the screw holes in the standoffs line up with the screw holes in the case M4735A Service Manual 4 123 Closing the Case d Check to be sure the back comers of the case are properly mated If one corner won t mate check to be sure the case standoffs are in their correct locations NOTE The two case standoffs are different colors the gray standoff should be near the ECG connector and the yellow standoff near the AC Mains connector They are slightly different lengths and are not interchangeable 6 Replace the case screws a b Place the unit on the work surface upside down Replace the 1 T15 case screw located in the battery compartment Replace the Battery Cover as described in Battery Cover on page 4 11 Turn the unit over rightside up Install a battery If the battery does not readily latch into place check for a case screw or other hardware lodged against the Battery PCA Also check that the Battery PCA is installed correctly Turn on power and run an Extended Self Test before installing the rest of the case screws see Extended Self Test on page 2 24 Remove the battery Turn the case over and replace the remaining nine T15 screws i
52. highlighted selection will begin to blink and the A and W softkeys will allow you change the selection to another of the values available When the value you want is displayed press ENTER to set that value NOTE These changes are only temporary and will not override the configuration set in Configuration Mode 4 Check the ECG Status messages The 3 status messages Lead FE Pad FE DSP should all be GOOD e The Leads FE test checks that communication is working between the Leads Front End FE and the Digital Signal Processor DSP e The Pads FE test checks that communication is working between the Pads FE and the DSP e The DSP test checks that communication is working between the DSP and the rest of the monitor 5 DC Offset This test is for manufacturing use only and should be ignored M4735A Service Manual 2 33 Performance Verification Tests 6 Test the ECG amplifier These tests measure both the gain and the noise of the two ECG amplifiers Leads and Pads Both use the Peak to Peak reading NOTE The Peak to Peak reading measures the peak to peak amplitude of the signal appearing on the selected ECG input Ifthe simulator s calibrated output is 1 0 mV then the Peak to Peak reading should be 1000 uV 10 100 uV for both Monitor and Diagnostic If the simulator output is calibrated to some other value the displayed value should be 10
53. intact refer to See Figure 4 18 on page 4 33 and use the Primary Method below to discharge the defibrillator capacitor e Ifyou see any burns or damage the Disarm Pathway may not be intact Use the Primary Method then also use the Secondary Method to discharge the defibrillator capacitor Primary Method a Using the High Voltage Discharge Tool first touch one end of the tool s brass bar to the current sensing resistor the small loop of flat metal See See Figure 4 18 on page 4 33 b Then pivot the brass bar so its other end contacts the exposed end of the disarm resistor ce Maintain contact at these two points for at least 5 seconds The defibrillator capacitor is now discharged Removal and Replacement Opening the Case Secondary Method a Using two clip leads connect one clip lead to each end of one of the Disarm Resistors b Touch the clip leads directly to the spade terminals on the Power PCA where the Defibrillator Capacitor is connected Maintain this connection for at least 5 seconds TIP Another way to make this connection is to clip the leads to test probe leads then use the test probes to touch the spade terminals c Repeat steps a and b using the other Disarm Resistor The defibrillator capacitor is now discharged even if one of the resistors is damaged Figure 4 18 Discharging the Defibrillator Capacitor High Voltage Discharge Tool Touch Here First Then Touch Here Disarm Re
54. new flex circuit into place then latch the receptacle on the Parameter PCA by pushing in on top of the receptacle For devices with a push in connector you do not need the flex circuit that comes with the replacement kit but can use the current flex circuit b Push the flex circuit from the SpO connector straight into the PCA connector There is no latch push 3 Replace the two long T10 screws Figure 4 37 Removing the Sp0 PCA on Devices with a Latching Connector eR AS O Flex Circuit to SpO Connector Flex Circuit to Parameter PCA Latching Connector 4 79 Internal Assemblies Top Case Ribbon Cable to Control PCA Parameter PCA SpO PCA 4 80 Figure 4 38 Removing the Sp0 PCA on Devices with a Push in Connector Flex Circuit to SpO Connector Push in Connector Flex Circuit to Parameter PCA After Repair After repairs are complete perform the following steps 1 If your device has a hooded plastic shield secure it See Reattaching the hooded plastic shield on page 4 71 Reassemble the case See Closing the Case on page 4 123 Install the current software release If the device already has the cur rent software you can skip this step Use the Language Support Tool to update the device s software to the cur rent release See The Language Support Tool on page 2 12 Restore the customer s configuration Enter Configuration Mode and reload the cus
55. non pulsatile Alarm delay lt 10 seconds Event Storage Internal Event Summary The internal Event Summary stores up to 300 events and up to 50 waveforms Events can be marked with a Mark symbol and if configured for drug annota tion the following labels can be added Epinephrine Adrenaline in U K and Australia Atropine Lidocaine or Other The Summary key on the front panel is used to print the internal Event Sum mary Data Card Event Summary The Data Card stores continuous ECG waveforms and events General Dimensions 19 0 cm H x 37 6 cm W x 34 6 cm L 7 5 x 14 8 x 13 7 Weight Standard Configuration weighs 6 5 kg 14 3 Ibs including battery full roll of paper and external paddles M4735A Service Manual 7 7 Specifications 7 8 Environmental Temperature 0 to 55 C operating 20 to 70 C storage e Thermal paper may darken above 55 C e Charging the battery at temperatures above 350C may degrade battery life e Storing the battery for extended periods at temperatures above 400C will reduce battery capacity and degrade battery life Humidity Up to 95 Relative Humidity e Printer may jam if paper is wet e Printer may be damaged if wet paper is allowed to dry while in con tact with the printhead elements Altitude Operating up to 15 000 ft Storage up to 15 000 ft Shock Philips Medical Systems Section 760 Class B1 Drop Test Vibration Philips Medical Systems Corp
56. of the case and lay it component side up on a Static safe surface 3 Remove the three individual wires a Pull straight up with a needle nose pliers to disconnect the two pad dles wires Their other ends have already been disconnected from the paddles pockets TIP Wiggling the spade connectors will help but use care to not bend the PCA mounted connections b Pull straight up with a needle nose pliers to disconnect the one remaining wire Its other end has already been disconnected from the Power PCA Figure 4 28 Keyscan PCA Screws PCA Mates with Ribs in Case Keypad Flex Circuits IrDA PCA Display Cables Routed Through Hole in PCA Keyscan PCA Speaker Energy Select Switch M4735A Service Manual 4 55 Internal Assemblies Top Case 4 Unscrew and remove the IrDA break off PCA OPTIONAL If the Keyscan PCA is being replaced also remove the IrDA PCA A replacement IrDA PCA is provided with the replacement Keyscan PCA If the Keyscan PCA is being removed for access to other subassemblies skip this step a Remove the two T10 screws that attach the IrDA PCA to the case See Figure 4 29 b Remove the PCA c Disconnect the cable from the PCA Press on the connector latch to release it Its other end has already been disconnected from the Key scan PCA Figure 4 29 Removing the IrDA PCA Cable to Keyscan PCA IrDA PCA 456000 Removal and Replacement M4735A Service Manual Int
57. off Pacing by pressing the button Performance Verification and Safety Tests Performance Verification Tests Defibrillator Test AC Power At 200 J These instructions describe how to test the defibrillation function when powered only by AC power no battery installed If all results are as described the unit passes the test Return to the main Diagnostic Test menu by pressing MAIN If there is any failure begin troubleshooting and repairing the unit as needed See Troubleshooting on page 3 1 and Table 3 9 Operational Problems Defibrillation and Synchronized Cardioversion on page 3 24 1 Set up the test a Turn defibrillator off and remove the battery Connect the AC Power cord b Connect the defibrillator analyzer to the pads cable Set the analyzer to measure delivered energy If needed reset the analyzer s display to read 0 c Turn the defibrillator on From the Diagnostic Menu select the Defib Meas Test and press ENTER 2 Deliver a 200J shock a Use the Energy Select control to select 200J b Press CHARGE to charge the defibrillator ce Press SHOCK 3 Check the analyzer readings Read the delivered energy indicated by the defibrillator analyzer It should be 200J 15 4 30J 4 Check the values displayed by the M4735A The results displayed by the M4735A should be as follows Available Energy Not recorded failure if gt 0 ms to Charge lt 15000 Delivered Energy Actua
58. on page 4 86 48400 Removal and Replacement Internal Assemblies Top Case Figure 4 40 Removing the Sp0 Connector SpO Connector Metal Clip Flex Circuit to SpO2 Connector 2 Connect the SpO Connector a Connect the flex circuit from the SpO connector to the SpO PCA Line it up carefully avoiding excessive twisting There is no latch just push straight in See Figure 4 37 on page 4 79 After Repair After repairs are complete perform the following steps 1 If your device has a hooded plastic shield secure it See Reattaching the hooded plastic shield on page 4 71 2 Reassemble the case See Closing the Case on page 4 123 3 Restore the customer s configuration Enter Configuration Mode and reload the customer s configuration from the data card or reconfigure the unit as needed See Configuration Mode on page 2 10 4 Test performance Conduct Performance Verification Testing as described in Performance Verification and Safety Tests starting on page 2 1 M4735A Service Manual 4 85 Internal Assemblies Top Case Speaker These instructions describe how to remove and replace the speaker assembly Preparation 1 Save the configuration If possible save the customer s configuration onto a Data Card or print the configuration so the configuration can be restored after the repair is complete 2 Open the case safely See Opening the Case on page 4 26 Remova
59. on the top and bottom edges of the printer assembly at the left end See Figure 4 1 on page 4 8 2 Remove the label and loosen the other 2 screws a Using a utility knife pick up one corner of the label b Peel the label up by pulling slowly and evenly on the loosened corner c Loosen the 2 T10 screws under the label M4735A Service Manual 4 7 Printer ribbon cable External Assemblies Figure 4 1 Removing the Printer Label and Screws Platen and Roller Bes AR Label Sliding Door WB Removal and Replacement External Assemblies 3 Remove the printer assembly Pull the printer straight up out of the printer bucket See Figure 4 2 on page 4 9 4 Disconnect the ribbon cable Unlatch the connector latches and unplug the ribbon cable as shown in See Figure 4 2 on page 4 9 TIP If you are installing a replacement printer remove the 4 screws now If you are moving the printer to a new Top Case Assembly save work by leaving the screws in place Figure 4 2 Removing the Printer Connector Ribbon Cable M4735A Service Manual 4 9 External Assemblies 4 10 Replacement 1 Replace the 4 screws a Open the paper door b Place the 4 screws in their holes in the printer Use tweezers or fine nose pliers to replace the 2 screws under the sliding door 2 Reconnect the ribbon cable a Align the ribbon connector and push it straight into the connector on the printer b Engage t
60. or greater 7 23 Guidance and Manufacturer s Declaration Devices with Serial Numbers USOO2XXXXX OF DUC AVI EAT anagem a 7 24 Recommended Separation Distances 2 ienserictienisecisspaccenaeisne Bee neensieeee 7 30 1 Introduction Who Should Use this Manual This Service Manual provides the information needed to successfully service the M4735A HeartStart XL Defibrillator Monitor The intended users of this manual are technical personnel who have been trained in the safe and proper servicing of the M4735A Overview In this chapter you ll find general information that you should become familiar with before servicing the M4735A Detailed information regarding controls operation and capabilities of the instrument can be found in the Instructions for Use M4735 91900 that was shipped with the product We recommend you review the Instructions for Use before servicing this device This Service Manual assumes you are familiar with the controls and with basic operations For additional documentation on the HeartStart XL visit our web site at www imedical philips com goto productdocumentation Web Based Training Web based service training for the M4735A HeartStart XL Defibrillator Monitor is available You can access the training through the InCenter web site at incenter medical philips com Contact your Philips representative to get access to the InCenter web site 1 1 Overview Defibrillator Monitor The M4735A is a
61. patient at a time Flat line no waveform no Leads Off or Pads Off message Short in internal ECG wiring or front end Failure in signal processing circuits Pads 1 Replace Patient Connector 2 Replace Power PCA Leads 1 Replace ECG connector 2 Replace Parameter PCA Replace Control PCA Leads Off message even though ECG cable has been replaced and is properly connected to the Open in internal Leads ECG wiring or front end due to simulator Cable from ECG Connector to Parame Reconnect cable properly See Servic ter PCA has bad ing Notes on page 4 1 connection Defective ECG Connector or cable to Replace ECG Connector Parameter PCA Defective Parameter PCA Replace Parameter PCA M4735A Service Manual 3 2 Operational Problems Table 3 7 Operational Problems ECG Monitoring Pads Paddles or Leads Continued Symptom Pads Off message even though pads cable has been replaced and is properly connected to the simulator Possible Cause Open in internal Pads ECG wiring or front end due to Cable from Patient Connector to Power PCA has bad connection Defective Patient Connector or internal cable to Power PCA Defective Power PCA Suggested Solution Reconnect cable properly See Servic ing Notes on page 4 1 Replace Patient Connector Assembly Replace Power PCA Trace distorted Failure in ECG front end Failure in signal proc
62. sections describe how to remove and replace the Patient Connector The Patient Connector is where the paddles or the pads cable con nect to the M4735A Preparation 1 Save the configuration If possible save the customer s configuration onto a Data Card or print the configuration so the configuration can be restored after the repair is complete 2 Open the case safely See Opening the Case on page 4 26 Removal 1 Disconnect the Patient Connector from the Power PCA a Disconnect the 9 pin connector press on the latch to release See Fig ure 4 50 on page 4 109 b Disconnect the two High Voltage spade connectors by pulling up with a needle nose pliers Note they are different sizes 2 Remove the Patient Connector a Unscrew the large nut on the back of the connector using a wrench or pliers b Pull the connector and its wires and O ring out of the case TIP Turn the 9 pin connector sideways to guide it out through the nut and through the hole in the case c Leave the metal plate in place on the inside of the hole 48 Removal and Replacement Internal Assemblies Bottom Case Figure 4 56 Removing the Patient Connector 9 Pin Connector to High Voltage Power PCA Spade Connector to Power PCA Two Total Metal Plate Case Wall Patient O Ring Connector Replacement 1 Replace the Patient Connector a Slide the wires of the new connector through the new O ring that came with the connec
63. the case M4735A Service Manual 4 59 Internal Assemblies Top Case Figure 4 30 Removing the Bezel Assembly Mating Case Tab 6 total Locking Clip on Bezel 6 total Energy Select Switch Plastic Shield Work Surface Threaded Handle Display Standoffs Assembly 4 60 Remove the Energy Select knob and switch OPTIONAL If the Bezel Assembly is being replaced also remove the Energy Select knob and switch Additionally if you are replacing an LCD Display it may be easier to remove the Energy Select knob and switch See Energy Select Switch on page 4 63 If the Bezel Assembly is being removed for access to other subassemblies skip this step Remove the Display Assembly OPTIONAL If the Bezel Assembly is being replaced also remove the Display Assembly See Display Assembly EL Display on page 4 65 or Display Assembly LCD Display on page 4 68 If the Bezel Assembly is being removed for access to other subassemblies skip this step Removal and Replacement Internal Assemblies Top Case Replacement 1 Replace the Display Assembly See Display Assembly EL Display on page 4 65 or Display Assem bly LCD Display on page 4 68 NOTE If you are replacing an LCD Display replace the Energy Select Knob and Switch after you replace the Keyscan PCA This makes it easier to connect the flex circuit from the Display to the Keyscan PCA 2 Replace the Energy Select knob and switch
64. the two paddle wires Remove the T10 screws that con nect them to the threaded inserts under the paddle holders For now leave the wires connected to the spade connectors on the PCA These T10 screws are a different length than the T10 screws used in the rest of the unit Keep them separate by screwing them back into the threaded inserts by hand and leaving them there until needed NOTE Disconnect the display 8 wire bundle by gently pushing on the latch and pulling straight out i TIP You may find it easier to remove the Energy Select Switch to gain access to the display flex circuit Disconnect the display flex circuit by pulling up on the latch to release it and pulling out j M4735A Service Manual 4 53 Internal Assemblies Top Case Figure 4 27 Keyscan PCA Connections for Devices with an LCD Display Flex Flex Single Wire to Paddle Wires 2 Flex circuit to Display Circuits 2 Circuits 2 Power PCA to Pacing to Main Keypad Keypad Cable to IrDA PCA 8 wire bundle to Ribbon Cable to Spade Connector to Dis Ribbon Cable to Work Energy Select Display Control PCA play Switch Surface 4 54 Removal and Replacement Internal Assemblies Top Case 2 Unscrew and remove the Keyscan PCA a Unscrew the two T10 screws located at the edge of the PCA nearest you they attach the PCA to the threaded standoffs Be sure to unscrew just the screws and not the standoffs b Lift the Keyscan PCA out
65. with a new empty defective HeartStart XL compatible Data Card see Chapter 5 for listing Failure on Control PCA Replace Control PCA Pacer Failure on Power PCA Replace Power PCA Defib Failure on Control PCA Replace Control PCA FE Failure on Control PCA Replace Control PCA Failure on Power PCA Replace Power PCA Failure on Parameter PCA Replace Parameter PCA Sp02 Failure on SpO PCA Replace SpO PCA Failure on Control PCA Replace Control PCA M4735A Service Manual Operational Problems Operational Problems These tables describe problems that may arise with specific functions or oper ations while using the M4735A ECG Monitoring The following table covers problems that might arise while monitoring ECG NOTE Before replacing any parts check to see if the cables and flex circuits are properly connected See Servicing Notes on page 4 1 Table 3 7 Operational Problems ECG Monitoring Pads Paddles or Leads Symptom Noisy trace constant noise on the base line Possible Cause Incorrect configuration power line fre quency 50 or 60 Hz or Filter settings Nearby source of constant interference Bad connection somewhere in signal path Failure in connector Failure in ECG front end Failure in signal processing circuits Suggested Solution Check change configuration as needed Try moving cable leads try relocating the unit Pads Check co
66. 0 mA 50 mA lt 42 mA e 50 mA 200 mA lt 4 Rate measurement accuracy e 30 180 ppm lt 0 5 Waveform duration accuracy e 30 180 ppm lms M4735A Service Manual 2 9 Configuration and Diagnostic Modes Configuration and Diagnostic Modes The instructions below describe how to enter Configuration Mode and Diagnostic Mode Configuration Mode These instructions describe briefly how to use Configuration Mode See the Instructions for Use for details on configuration settings and what effect they have CAUTION Inserting or removing the Data Card while the unit is on can corrupt the Data Card and prevent the unit from powering on again If this occurs see Chapter 3 Troubleshooting 1 Power off Make sure the unit s power is off 2 Insert a Data Card if applicable If you intend to save the configuration to a Data Card or load the configuration from a Data Card insert the Data Card now To avoid possible confusion designate one Data Card as the Configuration Card and label it clearly Keep this card physically separate from cards used by the clinical staff for data storage 3 Enter Configuration Mode Press softkeys 4 and 5 at the same time and hold them down while turning the power on See Figure 2 1 for softkey numbering 4 Select and manage Configuration choices e To select a configuration press the A and W softkeys to move up or down the list until the desired
67. 00 x simulator output 10 For example if the output is 1 5 mV the display should indicate 1500 uV 150 uV a Perform the amplifier gain test 1 Connect the ECG simulator to the pads cable Set the simulator output for sine wave 2 Hz or 10 Hz 1 mV peak to peak Ifthe simulator in use does not have this capability use an ECG waveform output whose peak to peak amplitude is accurately known NOTE The menu for Selected Lead displays Paddles as a selection but not Pads This is normal behavior in Diagnostic Mode Use the Paddles menu selection for both pads and paddles 2 Following the instructions under Step 3 on page 2 33 for changing settings set Selected lead to Paddles Only the Monitor frequency response will display a value the Diagnostic Peak to Peak value will be replaced by dashes 3 Wait for the displayed value under Monitor to stabilize 4 Ifthe simulator output 1 0 mV peak to peak the displayed value should be 1000 uV 10 100 uV See the Note under step 6 Test the ECG amplifier on page 2 34 5 Connect the ECG simulator to the ECG leads cable either 3 lead or 5 lead 6 Following the instructions under Step 3 on page 2 33 for changing settings set Selected lead to Lead Il 7 Wait for the displayed value under Diagnostic to stabilize 8 Ifthe simulator output is 1 0 me peak to peak the displayed value should be 1000 uV 10 100 uV See the Note under step 6 Test the ECG amplifier on page
68. 1 YOLOSNNOO aavo I fol ods MAWASSY YOLOSNNOD anava ods 6 5 M4735A Service Manual System Functional Descriptions System Functional Descriptions For all of the descriptions below refer to Figure 6 2 Signal and Data Flow Signal and Data Flow Below is a high level block diagram representing how signals and data flow to and from the PCAs Figure 6 2 Signal and Data Flow Power PCA Capai Control PCA Dat Contei Parameter PCA Data Control 30 pin ribbon 50 pin ribbon cable QO ie SPO PCA J7 Ji J3 Pads Paddles ECG Monitoring J2 Electrodes J4 Leads Cable Audio ECG 2 wire Out Defib Speaker Capacitor Data amp Control 50 pin ribbon cable Keyscan PCA EL Displa cee y pay Data amp Control J1 26 pin ribbon J2 _ Printer Energy 20 pin ribbon J3 Select Bri ight Control Switch J124 J13 J10 J11 6 pin ribbon flex circuits flex circuits The following connections apply for LCD displays Main Keypanel Charge Shock Keyscan PCA LCD Display Sync On Off LED inverter Board Power amp Batt LEDs ar pin gt Pacing flex lt Keypanel cable LED 6 6 Theory of Operation M4735A Service Manual System Functional Descriptions ECG Monitoring Functions There are two separate ECG front ends one f
69. 2 34 2 34 Performance Verification and Safety Tests Performance Verification Tests b Perform the amplifier noise test 1 Turn the simulator off Leave it connected to the ECG cable and leave Selected lead set to Lead Il 2 Wait for the displayed value under Diagnostic to stabilize 3 The displayed value should be 0 30 uV NOTE If the unit exhibits more than 30 uV of noise try repositioning the cable or unit to minimize external interference Also try various combinations of hav ing the ECG simulator turned on or off and if applicable whether the simu lator is plugged into the AC mains Refer to Chapter 7 for more information about reducing electromagnetic interference 4 Following the instructions under Step 3 on page 2 33 for changing settings set Selected lead to Paddles 5 Connect the simulator to the pads cable 6 Wait for the displayed value under Monitor to stabilize 7 The displayed value should be 0 30 uV 7 Test the PCI function This test checks the PCI Paddle Contact Indicator function The PCI measurement is used to detect Pads Off and Paddles Off and to illuminate the Paddle Contact Indicator LEDs on PCI equipped paddle sets It is an approximate measurement only the impedance value used to adjust the defibrillation waveform is a separate measurement made during delivery of the shock See Theory of Operation beginning on page 6 1 for more details a Connect a set of e
70. 2 Removing the Shield Plate Shield Plate Slot Tab Keyscan PCA Tab Slot 4 42 Removal and Replacement Internal Assemblies Top Case Replacement a Lower the plate into place Be sure to engage the tabs on the Keyscan PCA into the mating slots in the Shield Plate b Replace the five screws TIP Screw installation is easier if all screws are started in their holes before any one of them is tightened M4735A Service Manual 4 43 Internal Assemblies Top Case Keyscan PCA EL Display There are two versions of the Keyscan PCA depending what type of Display the device has See Identifying the Display Type on page 5 7 for information Follow the procedures that match your device Preparation 1 Save the configuration If possible save the customer s configuration onto a Data Card or print the configuration so the configuration can be restored after the repair is complete Note the serial number of the device You will need this number when performing the removal and replacement procedures Open the case safely See Opening the Case on page 4 26 Disconnect and remove the Control PCA See Control PCA on page 4 38 Remove the Shield Plate See Shield Plate on page 4 42 Removal 1 Disconnect the Keyscan PCA 12 cables TIP Position the M4735A with its handle hanging off the edge of your work surface See Figure 4 23 a Remove the large ribbon cable Its other end ha
71. 26 Discharge the Power Supply Capacitors sessssesesesseesreesesresstrsrerresressessrerresseesrereeesesee 4 26 Separate the Case sgceevelsranctencvzeccencoteeunsvqesenseuem E eres ea Ge enn 4 28 Discharge the Defibrillator Capacitor viscose cpetecsd ic cedecaceeedieas ects dicateensantderetadineeenideeetias 4 32 Identifying Internal Subassemblies c cociscecasecessieanveneccesureceseseuveesav dances seevaetadueeateeeucatteays 4 34 Internal Assemblies Top Case aisssxcwssevivesnwsenueicawaresy pans teernnesenauereauaarecaustvonvecevesbetee 4 35 Lithium Backup Battery ste ccad ete cescteus cA etencetarassdeaeen alana EEE AEE 4 36 Control PCA eiieeii nentes ee aaa A R a aaa 4 38 SaS D ed E r E apie tacts paoanasnved as 4 42 Keysc n PCA EL Display scesero esisiini isareti aiea enaa 4 44 Keyscan PCA LCD Display seeesseseseseesssresssesessreeresresstssrerresressersrertessetsresreeseeserereesee 4 52 Bezel Assembly ressis coed easearmarola aa 4 59 Enersy Select WU Os ccs Gp ee to ere races ceed aa tense T EEAS 4 63 Display Assembly EL Display oscesccvsdicsteneetesas ced peccicenccas de cavleuediautemaceseulaveeadedes 4 65 Display Assembly LCD Display ceccorssenteestasondeoceaze seen decoonsa catenvsaanepeeteaacureeecennrd eae 4 68 Hooded Plastic Shield o ciciciasscentsncaeasstasedeosaudecaassavaudd sagnasedvasndedassanduseuasueseuveseepiaccaneiaasa 4 71 Parametet PCA ccpiidyswaidyduaninse anen eE n E S EEE 4 72 Oe PCA E E A T T E uae taaadee 4 78
72. 6 ECG Monitoring F UnctOn ssssssieser isisisi tacenu aiis i saai roeas esii areari Eia 6 7 Patient impedance functions sssrinin na EE E EEE E E ERN 6 7 SpO2 Monitoring Functions esseeseseseesessessessesressrserssressessrseresrenesresstenstsetesrensenseesresseeee 6 8 Defibrillation FUNCIONS sisssssississricesinsiisssiseisiiiorsidsiitninissensisec insesi isisisi assise iiien 6 9 P ci g FUNCTIONS veaacsancdancevcecseocncetucomtnacacaasteddcuy anes osas ese easan eE Asna e EE EES RETE 6 11 viii Contents Audi F nctionS oe ctecacvheh esata ieceactaleded renie ni sas ea aED diated ae SESE added eeeasledaedii 6 11 Display PUNO WONS ase lacetancavcensencpccentccrezaeteencuanndeecatantdduczeatoepeeastocetered ccgeaaceaptesatscqunaseieds 6 11 Indicator FONCHONS csser reinn ena eA E ERE ATER EE EE REER 6 11 Key RUNCHODS wer E E E E E ter eae ver 6 11 Energy Select SWCD sesssrre d isisneodrer tieners ine neirt aeS Aae a each eee ES aaRS 6 12 Printing FUnCtiong siesesisisrsisirsicisrnri inerek aceeaaeeuadendape iEn eiiiai 6 12 Battery Power FUNGU ONS sssini iieiaeie ee na E EES 6 12 Lithium Backup Battery sssesesseeeeseeseeseessiererserstsrresresrserestestestseresreseseeertessessterrensetee 6 16 Data Card sissies a R E EEEE E RE 6 16 Specifications OVErViIEW serris ineei ieee a aa E EE e E EE EE 7 1 Specifications seit cssteneonptane saan nneanenseeoonsnens R a a sine E NEEE OR etiam Naina 7 1 WPT UO spicon ae ea a aaa a a E aaa T aiaa 7 1
73. 60 dip in Ur power mains interruptions it is for 5 cycles for 5 cycles recommended that the Heart 70 Ur 70 Ur Start XL be powered from an 30 dip in Ur 30 dip in Uy uninterruptible power supply or for 25 cycles for 25 cycles a battery lt 5 Urt lt 5 Ur gt 95 dip in Ur 95 dip in for 5 sec Ur for 5 sec Power frequency 3 A m 3 A m Power frequency magnetic fields 50 60 Hz magnetic field IEC 61000 4 8 should be at levels characteristic of a typical location in a typical commercial or hospital environ ment U is the AC mains voltage prior to application of the test level M4735A Service Manual Electromagnetic Compatibility 7 26 Table 7 7 Electromagnetic Immunity Life Supporting Functions Immunity Test IEC 60601 Compliance Electromagnetic Environment ty Test Level Level Guidance Portable and mobile RF communications equipment should be used no closer to any part of the HeartStart XL including cables than the recommended separation distance calculated from the equation applicable to the frequency of the transmitter 3 Vrms Recommended Separation Distance 150 kHz to 80 3 Vrms Conducted RF MHz IEC 61000 4 6 outside ISM d 1 2VP bands 10 Vrms Recommended Separation Distance 150 kHz to 80 10 Vrms MHz in ISM bands d 12VP Specifications Electromagnetic Compatibility I itv Test IEC 60601 Compliance Electromagnetic Enviro
74. 735 69607 Norwegian M4735 69608 Finnish M4735 69609 Chinese M4735 69611 Portuguese M4735 69613 Russian M4735 69614 Polish M4735 69619 Items marked with an asterisk contain Key Components which require tracking See Table 5 18 on page 5 23 Replacement Parts Labels Table 5 12 Instruction Label Sets With Pacing Language Part Number English M4735 69700 French M4735 69701 German M4735 69702 Dutch M4735 69703 Spanish M4735 69704 Italian M4735 69705 Swedish M4735 69706 Japanese M4735 69707 Norwegian M4735 69708 Finnish M4735 69709 Chinese M4735 69711 Portuguese M4735 69713 Russian M4735 697 14 Polish M4735 69719 Items marked with an asterisk contain Key Components which require tracking See Table 5 18 on page 5 23 M4735A Service Manual Labels Case Label Sets The Case Label Set is available for units both with and without SpO in the following supported languages See Figure 4 10 on page 4 23 for correct placement of these labels Table 5 13 Case Label Sets Without SpO Language Part Number English M4735 69800 French M4735 69801 German M4735 69802 Dutch M4735 69803 Spanish M4735 69804 Italian M4735 69805 Swedish M4735 69806 Japanese M4735 69807 Norwegian M4735 69808 Finnish M4735 69809 Chinese M4735 698 11 Portuguese M4735 698 13 Russian M4735 698 14 Polish M4735 69819
75. 8100 Serial Number Power PCA With Pacing M4735 68110 Power PCA M4735 61110 Serial Number Without Pacing M4735 68111 Power PCA M4735 61111 Serial Number Other Replacement PCAs Parameter PCA M4735 66140 Parameter PCA M4735 61140 Serial Number Keyscan PCA M4735 66120 Keyscan PCA EL M4735 61120 Serial Number Display Keyscan PCA M4735 66125 Keyscan PCA LCD M4735 60125 Serial Number Display Battery PCA M3500 66130 Battery PCA M3500 60130 Date Code Other Electrical Assemblies Display Assembly M4735 66552 Display Assembly 2090 0803 Serial Number EL Display Display Assembly M4735 66557 Display Assembly M4735 60996 Serial Number LCD Display Defibrillator Capaci M3500 69564 Defibrillator Capaci 010879 0004 Serial Number and tor Assembly tor Date Code Power Supply M4735 66020 Power Supply M4735 60020 Date Code Energy Select Switch M4735 69564 Switch Assembly M4735 60018 Date Code Assembly External Paddles with M4746 69100 External Paddles with M4746 69100 Date code PCI English PCI English External Paddles with M4746 69101 External Paddles with M4746 69101 Date code PCI French PCI French External Sterilizable M4745 69120 External Sterilizable M4745 69120 Date code Paddles Paddles External Paddles with M4746 69001 External Paddles with M4746 69001 Date code PCI no PCI no language language M4735A Service Manual 5 23 Key Components Table 5 18 Key Components Continued
76. AC Mains Connector The AC Mains Connector is located at the rear of the top case on the back wall It is part of one assembly with the ECG Out Sync connector Preparation 1 Save the configuration If possible save the customer s configuration onto a Data Card or print the configuration so the configuration can be restored after the repair is complete 2 Open the case safely See Opening the Case on page 4 26 3 If your device has a hooded plastic shield detach it See Detaching the hooded plastic shield on page 4 71 Removal 1 Disconnect and remove the ECG Out Sync Connector a Disconnect the 3 pin connector from the Parameter PCA Press on its latch to release Turn the top case over rightside up Using a pliers or wrench loosen the large nut on the ECG Out Con nector Remove the nut and the washer Turn the top case upside down Remove the ECG Out Connector from its hole It will still be attached to the AC Mains Connector 2 Remove the AC Mains Connector a 4 85 The AC Mains Connector should already be disconnected from the Power Supply in the bottom case If it is not disconnect it now See Opening the Case on page 4 26 Using a flat bladed screwdriver press in on the locking tabs on the top of the AC Mains Connector to release the top edge from the case The tabs will be difficult to depress Reach under the AC Mains Connector with your fingers and press in on the loc
77. AED Mode AED Energy Profile Fixed Energy 150 Joules AED Shock Series 1 2 3 or 4 shocks per series Shock Series Timer off 30 60 90 120 150 180 or 210 seconds Text and Voice Prompts Extensive text and audible messages guide user through protocol AED Controls On Off Pause Resume Analyze Stop Analysis Shock Lead Select SpO On Off SpO Alarms HR Alarms ECG Gain Volume Strip Summary Mark Indicators EL display for ECG waveform and text prompts Audio alerts Voice prompts QRS Beeper Charging Tone Charge Done Tone Printer AC Power LED Battery Charging LED Armed Indicators Charge Done Tone Available Energy indicated on dis play Voice Message Patient Analysis Per protocol evaluates patient ECG and signal quality to determine if a shock is appropriate and evaluates connection impedance for proper defibrillation pad contact Shockable Rhythms Ventricular fibrillation with amplitude gt 100 uV and wide complex ventricular tachycardia with rates greater than 150 bpm Sensitivity and Specificity Meets AAMI guidelines ECG Monitoring Inputs Single channel ECG may be viewed on display and printed Pads ECG is obtained through two multifunction defibrillation electrode pads Lead I II or HI are obtained through the 3 lead ECG cable and separate monitoring electrodes With a 5 lead cable leads aVR aVL aVF and any one of the V 1 6 leads can also be obtained Lead Fault LEADS OFF messag
78. Closing the Case on page 4 123 3 Restore the customer s configuration Enter Configuration Mode and reload the customer s configuration from the data card or reconfigure the unit as needed See Configuration Mode on page 2 10 4 Test performance Conduct Performance Verification Testing as described in Performance Verification and Safety Tests starting on page 2 1 M4735A Service Manual 4 111 Internal Assemblies Bottom Case Power Supply The following sections describe how to remove and replace the Power Supply The Power Supply comes with a plastic insulator that you place inside of the Power Supply holder Preparation 1 Save the configuration If possible save the customer s configuration onto a Data Card or print the configuration so the configuration can be restored after the repair is complete 2 Open the case safely See Opening the Case on page 4 26 Removal 1 Remove the screws a Orient the M4735A so the end of the bottom case is hanging off the work surface See Figure 4 54 b Remove the two T15 screws that secure the Power Supply TIP Another way to remove the screws is to mate the case halves together flip the case upside down then remove the screws Then flip the case rightside up and unmate the case halves 2 Disconnect the Power Supply a Disconnect the 2 pin in line connector from the Battery PCA press on the latch to release b Disconnect the 6 pin connector fr
79. E EEES 3 18 Extended Self Test Failures sneseno a nT E aaeiaelas 3 19 Operational Problems sspe inenen aini aE EEEE 3 20 ECG Monitoring seeiis nessieira innreise ei isaba anien n iien ta sdensstedbecniaielekduadtheesdexs 3 20 SPO2 MONIIOTINE ssssereneo sorsien iras esenee isiad es eiers iae iaiia EE esa Ea ia 3 23 Defibrillation and Cardioversion esssessesseesisseseeesressrseresresstrsrserestenseserenresseesrsrrensesee 3 24 PACINO asenin a E E I ERR 3 26 PPTL seyircisi e a a a a a a AA E E 3 27 Display gcccdsides aed conse ot ecb ended ene TE E a ETEA KEEA EEEE aiaa EN 3 28 PUIG E E E E E EENE A E 3 29 COntrOlS asesitesgesstarssiiinisein iid anios Eeee aE Ee aR EE EERE ana TEE T ai Tia aa a Ae Esaa 3 30 Battery and Charging Cine usts sosisini enus ace ceaveceusexsaneasauenadesa nce A EEA 3 31 Data Card tiea a ERE AE A E A A T eae 3 32 Calling for Service sesu seriorik nosies ies ae i ie EEE EEES Naa iiai Ee 3 33 Notth AMECA aa cesand ce Seaacosbvaseseceuntetesiladacianftuainaaeteance E Ee E nE Ena Ea eS ER ESAE aE 3 33 Latin America isseire sini ranie nE a SENE ESE aa EEKE EAEan EEEE EE aaia Eea 3 33 ODE anioia a E ence E E TE ER 3 33 ASi Asia PACII sognet iaaiiai e e i a a a R aE 3 34 Equipment Intonation osiensa ran ni n E EE E 3 35 Removal and Replacement vi OVEIVICW saute ea neo area ie aurea EE 4 Chapter Contents ener ee mee men aera OPE an Sen OE re Ane PORN ne AD EE Sone v Oni TEE aE any 4 1 Servicing INGLES cco ik cicescca
80. E then press and hold SHOCK until the shock is delivered at next QRS Verify on the defibrillator analyzer that the shock was delivered and was 5J 2J If the unit is configured to do so verify that it prints a strip with the correct information on it waveform text Verify on the defibrillator analyzer that the delay between the peak of the QRS and the delivered shock was lt 60 msec 2 19 Performance Verification Tests Spl Functional Check This check only needs to be performed if SpO is installed 1 Connect the sensor Attach the SpO transducer to your finger and connect it to the M4735A 2 Check SpO a Activate Manual Mode and press the SpO softkey to turn SpO on b The SpO value displayed should be in the range of 95 100 If the value is less than 95 check that your finger is fully inserted into the sensor and properly positioned 2 20 Performance Verification and Safety Tests Performance Verification Tests Diagnostic Tests The M4735A includes an extensive set of Diagnostic Tests which test the major hardware components of the defibrillator The Diagnostic Tests include Test Page System Log 2 22 Extended Self Test 2 24 User Interface Tests 2 27 ECG Tests 2 32 Pacing Test 2 37 Defibrillator Test AC Power At 200 J 2 39 Defibrillator Test Battery Power At 200 J 2 40 Defibrillator Disarm Test 2 41 M4735A Service Manual 2 21 Performance Verification Tests 2 22 Sy
81. Event Review Data Management System Batteries The M4735A is powered by a rechargeable Sealed Lead Acid SLA battery M3516A Proper care of these batteries will ensure that they have the energy required to operate the M4735A and deliver the appropriate therapy For more details see the Battery Maintenance section in the Instructions for Use and the Battery Maintenance Application Note NOTE 1 2 The defibrillator will take longer to charge when powered by AC without a battery installed To ensure optimal performance always have a fully charged battery in the defibrillator even when using AC power Introduction Overview Installation The M4735A does not require installation The Instructions for Use describes the setup required before placing the device into service as well as configura tion options Upgrades Upgrades are available to add specific functionality to units in the field These upgrades are e M4738A Pacing Upgrade adds pacing e M4739A SpO upgrade adds SpO gt Consult your sales representative or dealer or distributor for the latest details Preventive Maintenance Preventive maintenance and periodic operational checks are intended to be performed by the user Both topics are covered in the Maintenance chapter of the Instructions for Use Repair Philosophy Defibrillator Monitor The repair philosophy of the M4735A is subassembly replacement Examples of subassemblies ar
82. External Paddles with M4746A Date Code PCI PCI Internal Disposable Defibrillation Paddles Large Disposable 989803127121 Large Disposable 989803127121 Lot Batch Number Switched Internal Switched Internal Paddles Paddles Medium Disposable 989803127131 Medium Disposable 989803127131 Lot Batch Number Switched Internal Switched Internal Paddles Paddles Small Disposable 989803127141 Small Disposable 989803127141 Lot Batch Number Switched Internal Switched Internal Paddles Paddles M4735A Service Manual 5 25 Key Components Table 5 18 Key Components Continued Replacement Assembly Key Component Description Part Number Description Part Number Tracking Method Large Disposable 989803127151 Large Disposable 989803127151 Lot Batch Number Switchless Internal Switchless Internal Paddles Paddles Medium Disposable 989803127161 Medium Disposable 989803127161 Lot Batch Number Switchless Internal Switchless Internal Paddles Paddles Small Disposable 989803127171 Small Disposable 989803127171 Lot Batch Number Switchless Internal Switchless Internal Paddles Paddles Internal Defibrillation Paddles 7 5 cm Switchless MI1741A 7 5 cm Switchless MI1741A Date Code Internal Paddles Internal Paddles 6 0 cm Switchless M1742A 6 0 cm Switchless M1742A Date Code Internal Paddles Internal Paddles 4 5 cm Switchless M1743A 4 5 cm Switchless M1743A Date Code Internal Paddles
83. Items marked with an asterisk contain Key Components which require tracking See Table 5 18 on page 5 23 5 16 Replacement Parts Labels Table 5 14 Case Label Sets With SpO Language Part Number English M4735 69820 French M4735 69821 German M4735 69822 Dutch M4735 69823 Spanish M4735 69824 Italian M4735 69825 Swedish M4735 69826 Japanese M4735 69827 Norwegian M4735 69828 Finnish M4735 69829 Chinese M4735 6983 1 Portuguese M4735 69833 Russian M4735 69834 Polish M4735 69839 Items marked with an asterisk contain Key Components which require tracking See Table 5 18 on page 5 23 M4735A Service Manual 5 17 Labels Paddle Labels Order one of the language specific labels listed in this table for use with the External Paddles with PCI M4746 69001 Table 5 15 Paddle Labels Language Part Number English M1722 84520 French M1722 84521 German M1722 84522 Dutch M1722 84523 Spanish M1722 84524 Italian M1722 84525 Swedish M1722 84526 Japanese M4735 85117 Norwegian M1722 84560 Finnish M1722 84561 Chinese M4735 85111 Portuguese M4735 85113 Russian M4735 85114 Polish M4735 85119 Other Labels These labels are also available See Figure 4 12 on page 4 24 for correct placement of these labels Table 5 16 Other Labels Description Part Number Notes Speaker Label Set M4735 69555 Brand
84. Keyscan PCA LCD Display on page 4 52 6 Remove the Bezel Assembly See Bezel Assembly on page 4 59 Removal 1 4 92 Flip the case over and remove the Pacer Keypad a Flip the top case over rightside up Place it on the bottom case for support b Using needle nose pliers grasp one corner of the rubber overlay and pull up The overlay will peel up the membrane switches underneath may or may not come up with the overlay c Ifthe membrane switches are still in place use a sharp tool such as a utility knife to pick up one corner then peel them up with needle nose pliers The membrane switches may peel apart into several layers be sure to remove all layers d Slide the two flex circuit tails out of the slot in the case Removal and Replacement Internal Assemblies Top Case Figure 4 43 Peeling up the Rubber Overlay Rubber Membrane Overlay Switches Figure 4 44 Peeling up the Membrane Switches Membrane Recess in Case Switches M4735A Service Manual 4 93 Internal Assemblies Top Case Replacement 1 Prepare the case a Clean off all adhesive residue from the case by rubbing the dry surface with your finger and rolling up any adhesive TIP Lightly scoring the adhesive with a rounded tool will aid removal Solvents are ineffective as is scraping with a sharp tool NOTE The adhesive used is difficult to remove Take your time and do a thorough job to ensure a correct seal
85. Lift the Keyscan PCA out of the case and lay it component side up on a Static safe surface 3 Remove the three individual wires a Pull straight up with a needle nose pliers to disconnect the two pad dles wires Their other ends have already been disconnected from the paddles pockets TIP Wiggling the spade connectors will help but use care to not bend the PCA mounted connections b Pull straight up with a needle nose pliers to disconnect the one remaining wire Its other end has already been disconnected from the Power PCA Figure 4 24 Keyscan PCA Screws PCA Mates with Ribs in Case Keypad Flex Circuits and Fer rites IrDA PCA Display Cables Routed Through Hole in PCA Keyscan PCA Speaker Energy Select Switch M4735A Service Manual 4 47 Internal Assemblies Top Case 4 Unscrew and remove the IrDA break off PCA OPTIONAL If the Keyscan PCA is being replaced also remove the IrDA PCA A replacement IrDA PCA is provided with the replacement Keyscan PCA If the Keyscan PCA is being removed for access to other subassemblies skip this step a Remove the two T10 screws that attach the IrDA PCA to the case See Figure 4 25 b Remove the PCA c Disconnect the cable from the PCA Press on the connector latch to release it Its other end has already been disconnected from the Key scan PCA Figure 4 25 Removing the IrDA PCA Cable to Keyscan PCA IrDA PCA V4 Removal and Replace
86. ON OR BY THE ORDER OF A PHYSICIAN Manufacturer Philips Medical Systems 3000 Minuteman Road Andover MA USA 01810 1099 Medical Device Directive The M4735A Defibrillator Monitor complies with the requirements of the Medical Device Directive 93 42 EEC and carries the CE 0123 mark accord ingly Authorized EU representative Philips Medizin Systeme B blingen GmbH Hewlett Packard Str 2 71034 B bingen Germany Canada EMC ICES 001 For the Declaration of Conformity Statement please see the Philips Medical web site at http incenter medical philips com PMSPublic Scroll over the Quality and Regulatory Tab located in the upper left corner of the window Click to select Regulatory by Modality Then click to select Defibrillators and select the entry for Declaration of Conformity DoC China After sales service Beijing MEHECO PHILIPS Medical Equipment Service Center After sales service address No 208 2nd District Wang Jing Li Ze Zhong Yuan Chao Yang District Beijing Postal Code 100102 Telephone 010 64392415 Registration Number SFDA 1 20043212740 Product standard number YZB USA 2764 21 This manual uses the following text conventions Printed and On Line WARNING Warning statements describe conditions or actions that can result in personal injury or loss of life CAUTION Caution statements describe conditions or actions that can result in damage to the equipment or loss of d
87. PHILIPS HEARTSTART HEARTSTART XL HEARTSTART XL Service Manual M4735A Service Manual M4735A HeartStart XL Defibrillator Monitor PHILIPS Notice About This Edition Edition 5 Printed in the USA Publication number M4735 90900 The information in this manual applies to the M4735A HeartStart XL Release Main 20 and earlier This information is subject to change without notice Philips shall not be liable for errors con tained herein or for incidental or conse quential damages in connection with the furnishing performance or use of this material Edition History Edition 1 October 1 2000 Edition 2 February 2003 Edition 3 October 2004 Edition 4 July 2005 Edition 5 April 2006 Copyright Copyright 2006 Koninklijke Philips Electronics N V All rights are reserved Reproduction in whole or in part is prohibited without the prior written consent of the copy right holder Use of supplies or accessories other than those recommended by Philips Medical Systems may compromise product performance ii Warning Radio Frequency RF interference from nearby transmitting devices may seriously degrade performance of the M4735A HeartStart XL Defibrillator Monitor Electromagnetic compatibility with surrounding devices should be assessed prior to using the defibrillator THIS PRODUCT IS NOT INTENDED FOR HOME USE IN THE U S FEDERAL LAW RESTRICTS THIS DEVICE TO SALE
88. Plug the 2 pin connector onto the Power PCA e Plug the 2 pin connector into the Power Supply 410400 Removal and Replacement M4735A Service Manual Internal Assemblies Bottom Case After Repair After this repair is complete perform the following steps 1 Reassemble the case See Closing the Case on page 4 123 Restore the customer s configuration Enter Configuration Mode and reload the customer s configuration from the data card or reconfigure the unit as needed See Configuration Mode on page 2 10 Test performance Conduct Performance Verification Testing as described in Performance Verification and Safety Tests starting on page 2 1 4 105 Internal Assemblies Bottom Case WARNING Defibrillator Capacitor Always discharge the defibrillator capacitor before performing any service opera tions on this unit See Separate the Case on page 4 28 Preparation 1 Save the configuration If possible save the customer s configuration onto a Data Card or print the configuration so the configuration can be restored after repair 2 Open the case safely See Opening the Case on page 4 26 Removal 1 Lift the capacitor out of the way Lift up the defibrillator capacitor and its foam base Lift straight up then turn and rest them on the Power PCA See Figure 4 49 on page 4 107 2 Disconnect the capacitor a Before disconnecting the capacitor note the polarity and routing of i
89. Section 759 Class B1 Vibration Water Resistance Meets IEC 601 2 4 44 3 IEC 529 Level IPX0 non protected Safety Meets EN 60601 1 EMC Meets EN 60601 1 2 Other Considerations Equipment not suitable for use in the presence of a flammable anesthetic mixture with air oxygen or nitrous oxide Mode of Operation Continuous AC Line Powered 100 240 VAC 50 60 Hz 4A max unit off 1 5A max while charging defibrillator Battery Powered 12 V Rechargeable SLA Specifications Waveforms Waveforms Figure 7 1 150J 25 Ohms Biphasic Waveform 70 Current A 30 0 0 1 0 2 0 3 0 4 0 5 0 6 0 Time ms Figure 7 2 150J 50 Ohms Biphasic Waveform Current A 20 0 0 1 0 2 0 3 0 4 0 5 0 6 0 7 0 8 0 9 0 Time ms M4735A Service Manual 7 9 Waveforms Figure 7 3 150J 75 Ohms Biphasic Waveform Current A 0 0 2 0 4 0 6 0 8 0 10 0 12 0 Time ms Figure 7 4 150J 100 Ohms Biphasic Waveform Current A 0 0 2 0 4 0 6 0 8 0 10 0 12 0 14 0 16 0 Time ms 7 10 Specifications Waveforms Figure 7 5 150J 125 Ohms Biphasic Waveform 20 Current A 10 0 0 5 0 10 0 15 0 20 0 Time ms Figure 7 6 150J 150 Ohms Biphasic Waveform 14 Current A 0 0 5 0 10 0 15 0 20 0
90. See Control PCA on page 4 38 5 Remove the Shield Plate See Shield Plate on page 4 42 Removal 1 Disconnect the Keyscan PCA 12 cables TIP Position the M4735A with its handle hanging off the edge of your work surface See Figure 4 27 a Remove the large ribbon cable Its other end has already been discon nected from the Control PCA Note the position and location of the bend in the ribbon cable b Note that two flex circuits to the Pacing Keypad are routed around the top edge of the Keyscan PCA and two flex circuits to the Main Keypad are routed around the lower edge of the Keyscan PCA c Disconnect the two pacing keypad flex circuits if installed Unlatch the white receptacles on the PCA by pulling upward on the top of the receptacle then slide out the flex circuit d Disconnect the two main keypad flex circuits e Disconnect the IrDA break off PCA Press on the connector latch to release it f Disconnect the Energy Select Switch Press on the connector latch to release it Removal and Replacement Internal Assemblies Top Case Disconnect the display spade connector by pulling straight up with a needle nose pliers g TIP If the Keyscan PCA is being removed to get access to the Front Bezel or the Display don t disconnect the paddle wires after unscrewing the two screws step 2 below flip the PCA over and lay it component side down on the underside of the Printer bucket h Disconnect
91. Speaker Label Set 5 18 Language Support Tool 2 12 4 38 5 6 LCD Display See Display Leads FE test 2 33 Leads Off 3 13 3 21 LED 7 2 Lithium Backup Battery 4 36 5 6 5 9 6 16 Load impedance 7 2 Low Battery 3 13 M4735A Unit Exchange Program 5 4 Main fuse 4 13 5 9 Maintenance 1 3 4 6 iii Index Manual Mode 1 2 3 24 7 2 charging 6 9 Metal Clip 5 13 Momentary message 3 16 ms to Charge 2 40 N No Data Card Present 3 17 No Shock Delivered 3 16 3 25 Non Pulsatile 3 14 O Operational problems 3 20 P Pacer Keypad 5 11 5 25 6 11 replacement 4 92 testing 2 28 Pacing 6 11 operational problems 3 26 Pacer Failure 3 14 Pacer Hardware Not Installed 3 26 Pacer Output Low 3 14 specifications 7 6 Stop Pacer 3 17 testing 2 5 2 26 2 37 Paddle Label Set 5 18 Paddles 5 25 Attach Paddles 3 16 PCI Paddle Contact Indicator 2 35 6 7 replacing holders 4 20 5 12 Pads applying 7 19 Attach Pads 3 16 cables 5 26 Pads Cable Off 3 14 Pads FE test 2 33 Pads Off 3 14 3 21 3 22 safety precautions 7 19 Parameter PCA 5 7 5 23 6 3 6 8 replacement 4 72 Patient Connector 4 118 5 12 5 25 Patient impedance 6 7 Patient Isolation 7 4 Patient lead leakage 2 43 PCA Printed Circuit Assembly 6 2 Battery 4 102 5 7 5 23 6 4 IrDA break off 4 48 4 56 Keyscan 4 44 4 52 5 7 5 23 6 3 6 11 Parameter 4 72 5 7 5 23 6 3 6 8 Power 4 108 5 7 5 23 6 3 6 9 SpO2 2 26 4 78 5 7
92. System Level Interconnections Figure 6 1 System Interconnections pueog J H AU AVaSIa an NOD Xala zr Y d NY SAJA SUONAUUOIEU Bumoljoy ayy sey Azidsiq A97 UL ALON z Aeidsiq 097110 iojaq 3 0u 89S AW1dSI0 a we i Las J100Yd WNYALXS aol MNASSY YOLOSNNOD ANSILWd jeuedkey ule erat peo se vod aul seal wel or s f agea uoqquudg er F ir algea uoqqu aigeo Vd NVISAAM uid 09 uogquuidoz 2 i uror erar vr jauedkay yomg Jaded pajas ABieug YsVAdS pieg geq we L or ME ae aiqeo uoqqu uid 0G sr 6r er plays Buyunow jeja oseo doy V3d TONLNOD zr AYALIWA meoo Wai er alqes uoqqu uid 9z i 1 AlaWassy YALNIYd aseo wonog w or vod NASW yuvd er VWOd YIMOd or He H Y0LlIYdY3 yOLVTTYals30 Vod AYALLVE WOWd AYaLLVa Alddns YIMOd YOLOANNOD AI8NWISSY SNIVIN OW CI ANSNASSY YOLOANNOD 1n0 994 lt Vod AISWASSV savq
93. Voltage Power PCA High Voltage Spade Connector Spade Connector 2 Total Slot in Foam 2 Total After Repair After this repair is complete perform the following steps 1 Reassemble the case See Closing the Case on page 4 123 Restore the customer s configuration Enter Configuration Mode and reload the customer s configuration from the data card or reconfigure the unit as needed See Configuration Mode on page 2 10 Test performance Conduct Performance Verification Testing as described in Performance Verification and Safety Tests starting on page 2 1 4 107 Internal Assemblies Bottom Case Power PCA The Power PCA is located in the bottom case Preparation 1 Save the configuration If possible save the customer s configuration onto a Data Card or print the configuration so the configuration can be restored after the repair is complete 2 Open the case safely 3 Disconnect and remove the defibrillator capacitor See Defibrillator Capacitor on page 4 106 Removal 1 Disconnect the Patient Connector from the Power PCA a Disconnect the 9 pin connector press on the latch to release See Fig ure 4 50 on page 4 109 b Disconnect the two High Voltage spade connectors by pulling up with a needle nose pliers 2 Disconnect the Battery PCA from the Power PCA a Disconnect the large white 4 pin connector press on the latch to release This connector carries the four battery wires two r
94. ables provide information about replacement mechanical assemblies Bezel Assembly The Bezel Assembly comes with the Main Keypad and the display window installed Table 5 6 Replacement Bezel Assembly Language Part Number English M4735 66400 French M4735 69401 German M4735 69402 Dutch M4735 69403 Spanish M4735 69404 Italian M4735 69405 Swedish M4735 69406 Japanese M4735 69407 Norwegian M4735 69408 Finnish M4735 69409 Chinese M4735 69411 Portuguese M4735 69413 Russian M4735 69414 Polish M4735 69419 Items marked with an asterisk contain Key Components which require tracking See Table 5 18 on page 5 23 Replacement Parts Mechanical Assemblies Pacer Keypad Assembly Each assembly below contains both the membrane switches and the rubber overlay Table 5 7 Replacement Pacer Keypad Assembly Language Part Number English M4735 69500 French M4735 69501 German M4735 69502 Dutch M4735 69503 Spanish M4735 69504 Italian M4735 69505 Swedish M4735 69506 Japanese M4735 69507 Norwegian M4735 69508 Finnish M4735 69509 Chinese M4735 69511 Portuguese M4735 69513 Russian M4735 69514 Polish M4735 69519 Replacement Blank Pacer Cover M4735 69540 Rubber overlay only for units without Pacing Items marked with
95. al performance is observed additional measures may be necessary such as re orienting or relocating the HeartSTart XL gt Over the frequency range 150 kHz to 80 MHz field strengths should be less than 3 V m M4735A Service Manual 7 29 Electromagnetic Compatibility Recommended Separation Distances The HeartStart XL is intended for use in an electromagnetic environment in which radiated RF disturbances are controlled The customer or the user of the HeartStart XL can help prevent electromagnetic interference by maintaining a minimum distance between portable and mobile RF communications equip ment transmitters and the HeartStart XL as recommended below according to the maximum output power of the communications equipment Table 7 9 Recommended Separation Distances Separation Distance According to Frequency of Transmitter m Rated Maximum Output 150 kHZ to 800 MHz 800 MHz to 2 5 GHz Power a d 23 JP 0 01 0 1m 0 2 m 0 1 0 4m 0 7m 1 1 2m 2 3m 10 4m 7m 100 12m 23m For transmitters rated at a maximum output power not listed above the recommended separation distance d in meters m can be determined using the equation applicable to the frequency of the transmitter where P is the maximum output power rating of the transmitter in watts W according to the transmitter s manufacturer At 80 MHz and 800 MHz the higher frequency range applies These guidelines may not apply in all situ
96. amp and W softkeys to move up or down the list to select the desired test Then press ENTER to begin that test Check the Shutdown Warning and the Voice Prompt the other responses are given for reference The results should be as described below Press CANCEL to end that test and return to the main audio test menu e Message Alert A repeating series of 3 short tones followed by a pause e Heart Rate Alarm 1 sustained tone of moderately high pitch e Charge Done Tone sustained tone of lower pitch than the Heart Rate Alarm e Auto Disarm Warning A repeating series of 1 short tone and a pause e Shutdown Warning A repeating series of tones of alternating high low pitch e Voice Prompt Voice should be clear and understandable 3 End the test Press Softkey 4 MAIN to return to the Main diagnostic mode menu M4735A Service Manual 2 29 Performance Verification Tests To test the printer Start the Printer Test 1 a Select Printer Test and press ENTER Check the print quality a Verify that the test patterns on the strip are as indicated in Figure 2 4 Check for white lines printhead elements stuck off or black lines printhead elements stuck on Check area A for stray marks or lines The area of Figure 2 4 labeled C contains printouts of all characters and symbols Verify that they are readable Stop the printout Press CANCEL to end the test and return to the mai
97. arby components or traces 3 Remove the Control PCA a Move the Control PCA toward the rear while lifting it off the metal shield plate This will help the Eject button clear its hole in the black plastic shield surrounding the Data Card receptacle NOTE If the black plastic shield is damaged remove it otherwise leave it in place on the metal shield plate If you are replacing the Control PCA the new PCA comes with a new plastic shield b Leave the lithium backup battery in place when returning the PCA for repair This will help preserve information for factory troubleshoot ing Figure 4 21 Control PCA Screws Eject Button Lithium Battery Slide PCA to Rear Before Lifting Up 4 40 Removal and Replacement Internal Assemblies Top Case Replacement 1 Place the Control PCA in position Line up the holes in the Control PCA with the threaded standoffs on the shield plate Lower the PCA straight down into position CAUTION Do not drag the PCA over the surface of the shield plate to align it M4735A Service Manual 2 Replace the screws TIP Screw installation is easier if all screws are started in their holes before any one of them is tightened 3 Connect the Control PCA a Connect the speaker cable b Connect the printer cable ec Connect the ribbon from the Parameter PCA d Connect the ribbon from the Keyscan PCA 4 Replace the plastic shield if needed If the black plastic sh
98. ard 2 Replace Control PCA B0000 BFFFF Audio failure Replace Control PCA F0000 F0001 RAM ROM failure Replace Control PCA F0002 Promo Mode failure Replace Control PCA F0003 Keyscanner failure 1 Replace Keyscan PCA 2 Replace Control PCA F0004 System Communication error Replace Control PCA F0007 System Communication error Cycle power See System Errors on page 3 5 3 12 Troubleshooting System Messages General Problems System messages remain on the display until the specified action is taken or no longer relevant They are intended for the end user and appear in the Instructions for Use System messages are duplicated here for the reference of the service person NOTE Table 3 3 System Messages Before replacing any parts check to see if the cables and flex circuits are properly connected See Servicing Notes on page 4 1 Message Attach Pads Cable Description The pads cable is not properly attached to the device Corrective Action Check the cable connection Configuration Lost The configuration is reset to the default set tings 1 Reconfigure the M4735A 2 If problem reoccurs service the unit See Troubleshooting on page 3 1 Look for problems with the Control PCA or the Lith ium Backup Battery data is unavailable from the 3 or 5 lead monitoring electrodes or from the pads paddles Data Card Disabled The PC c
99. ard is not in use because it is full If possible turn the M4735A off for more than incompatible absent removed during the inci 2 minutes then insert a new empty HeartStart dent or inserted after the M4735A was turned XL compatible Data Card see Chapter 5 for on listing and turn the device on You can also enter configuration mode and turn the device off then on again ECG Fault The ECG data acquisition system failed and Service the unit See Troubleshooting on page 3 1 Low Battery The battery has sufficient capacity remaining to provide only about ten minutes of monitoring time and five shocks before the M4735A shuts off e Replace the battery with a fully charged M3516A battery e Plug in AC power Leads Off e The monitoring electrodes are not applied or are not making proper contact with the patient e The monitoring cable is not connected e The ECG cable is not connected e The internal cable from the ECG connector to the Parameter PCA is disconnected e Failure on the Parameter PCA e Check that the monitoring electrodes are properly applied e Check that the monitoring cable is properly connected e Check that the ECG cable is properly connected e Check the internal cable e Replace the Parameter PCA M4735A Service Manual 3 13 General Problems Table 3 3 System Messages Continued Message No Paddles Connected Description e The paddles a
100. arged Secondary Method 1 Open the case See Separate the Case on page 4 28 Stop after completing step 7 DO NOT disconnect the case halves yet 2 Discharge the defibrillator capacitor See Discharge the Defibrillator Capacitor on page 4 32 Note the condi tion of the Discharge Pathway 3 Disconnect and remove the defibrillator capacitor See Defibrillator Capacitor on page 4 106 Leave the foam in place on the capacitor wires 4 26 Removal and Replacement Opening the Case 4 Disconnect the battery connector Unplug the 4 pin battery connector from the Power PCA See Figure 4 14 5 Use the disarm resistors to discharge the power supply capacitors a Using two clip leads connect one clip lead to each end of one of the Disarm Resistors b Touch the other ends of the two clip leads to the two middle pins of the battery connector on the Power PCA Maintain this connection for at least 5 seconds The power supply capacitors are now dis charged CAUTION If the Disarm Pathway was found to be damaged in the earlier steps repeat step 5 using the other Disarm Resistor 6 Disconnect the case halves See Separate the Case on page 4 28 Complete steps 8 and 9 Figure 4 14 Battery Connector Location Power Supply Battery Connector Power PCA Cable from Battery PCA M4735A Service Manual 4 27 Opening the Case WARNING Separate the Case Dangerous voltages may be present o
101. ass x p Example DB p run the Defibrillator Test at 200Joules page 2 40 Measured by If the measurements are Defibrillator Analyzer e Delivered energy 200 30J Displayed by M4735A e Available Energy after Shock 0 e Msec to charge e lt 3000 msec e Delivered energy e Actual delivered energy 7 e Impedance 42 to57Q e Defib errors e None 0 then the Defibrillator test Bat tery Power passes Defibrillator Enter Diagnostic Mode and All readings as expected x p D x Disarm Test D run the Defibrillator Disarm No errors reported Example D p Test page 2 41 then the Defibrillator Disarm test passes 2 6 Performance Verification and Safety Tests Table 2 1 Performance Verification and Safety Tests Continued Test and Inspection Matrix Single Fault condition cc SPO e Source Normal Condition dd e Source Single Fault Condition open earth open neutral ee e With Mains on applied part Single Fault condition ff f Data to Record Test Group Name Test or Inspection to Perform Expected Test Results PED RE Safety Tests Indicate test results as Note All leakage current tests follows include both Normal and Reverse Polarity Conditions Report worst case values All values within limits x p Earth Leakage Earth Leakage Current If Normal Condition Maximum S1 P aaa bbbb Current S1 NC Normal Condition aaa leakage current Example 1 P 125 800 e lt 300 uA UL 120 VAC nee
102. ata NOTE Notes contain additional information on servicing this product TIP Tips provide hands on insight into servicing this product Text represents messages that appear on the display represents softkey labels that appear on the display Softkey above or below the button to which they correspond On Line Only Hypertext represents hypertext links which will display as blue click on the link to go to that destination then click on the destination to return iii Contents Introduction Who Should Use this Manual cicsccsvesccresnsesbeshavevesnive ter amaeerebeisuuawuseeenavew on 1 1 OVEVIC W aona a a E ee to prone eRe ret ret oe 1 1 Web Based Training ois cesadwna seuncdaatenetensancatecactanseet pe cadesd AEAEE ERIS ADAE ATES EERI E 1 1 De fibrillator MoOonitor siscciciicd6siiesieetiei sds fbdtdsaseieen idddieisiiesiaviie E s E aden 1 2 Batteries aieccecsetinecicesstecoctesietecsintuc seachesaduas Meoebagdviedstageidyasdadadhaddiaeudasaeatacboceebeedlasedmessueted 1 2 Jnstallation cicisccis ss scceadi ve cotta ce vesSt detec ides E A E E has doves sects aaa 1 3 Upgrades mn maeno a naiaa E E E 1 3 Preventive Maintenance ccccccccccccccccececececececececececececeeeeseeeseeeseseseseseeesessseeeeseseeenseeees 1 3 Repait Philosophy cencive te eacertecenndie ties ecgiewtia Gece e AEE EE ETRE 1 3 Performance Verification and Safety Tests OVETVIEW Benen meee ee Tera Te en eee Te ROC ce RTT OR ON TCT tte o
103. ata Card or print the configuration so the configuration can be restored after repair 2 Open the case safely See Opening the Case on page 4 26 3 If your device has a hooded plastic shield detach it See Detaching the hooded plastic shield on page 4 71 Removal 1 Disconnect the SpO Connector a Note the orientation and placement of the flex circuit between the SpO connector and the SpO PCA Disconnect it at the SpO PCA There is no latch just pull it straight out b Leave the flex circuit from the SpO PCA to the Parameter PCA con nected 2 Remove the SpO Connector a Release the locking tabs on the metal clip around the SpO connector using a small flat bladed screwdriver Pull and remove the metal clip See Figure 4 41 on page 4 86 b Slide the connector gasket and flex circuit out through the hole in the case Replacement 1 Replace the SpO Connector a Install the new gasket in place on the new connector Slide the connector and flex back through the hole in the case b Align the connector and gasket with the notches in the case and insert it in the hole Make sure the gasket is in place properly between the connector and the outside of the case c Press in firmly on the connector to compress the gasket Slide the metal retainer clip into place behind the two plastic lugs on the connector being sure it locks into place Use the new retainer clip that came with the connector See Figure 4 41
104. ation so the configuration can be restored after the repair is complete 2 Open the case safely See Opening the Case on page 4 26 3 If your device has a hooded plastic shield detach it See Detaching the hooded plastic shield on page 4 71 Removal 1 Disconnect the SpO PCA a Disconnect the flex circuit from the SpO connector There is no latch pull straight out from the PCA connector b Disconnect the flex circuit from the SpO PCA Some PCAs have a latching connector and some have a push in connector Refer to the steps and figures that match your device Latching connector Unlatch the brown receptacle on the PCA by pulling on the top of the receptacle then slide out the flex circuit See Figure 4 37 Push in connector There is no latch pull straight out from the PCA connector See Figure 4 38 2 Remove the SpO PCA a Remove the two long T10 screws b Lift the PCA out of the case QB Removal and Replacement Ribbon Cable to Control PCA Parameter PCA SpO PCA M4735A Service Manual Internal Assemblies Top Case Replacement 1 Replace the SpO PCA Lower the PCA into position on top of the Parameter PCA The SpO PCA should be oriented so the 2 connectors are on top and pointing to the right 2 Connect the SpO PCA a Connect the flex circuit from the Parameter PCA For SpO PCAs that had a latching connector you need to install the new flex circuit Slide the
105. ations Electromagnetic propagation is affected by absorption and reflection from structures objects and people 7 30 Specifications AC Mains Connector 4 88 5 12 AC power test 2 6 2 39 Accessories 5 1 5 19 ordering 7 19 AED Mode 1 2 3 24 7 3 Amplifier test 2 34 Attach 3 13 Attach Cable 3 16 Attach Leads 3 16 Attach Paddles 3 16 Attach Pads 3 16 Attach Pads Cable 3 13 Audio tone 6 11 operational problems 3 29 speaker removal and replacement 4 86 testing 2 29 troubleshooting 3 18 Batteries ordering 5 22 Battery 6 4 6 12 Battery Capacity Test 2 46 Battery Charger Kit 5 27 Battery Eject Assembly 4 15 5 12 charging 1 2 3 24 6 13 cover replacement 4 11 disposal 4 4 Lithium Backup Battery 4 36 5 6 5 9 6 16 Low Battery 3 13 operational problems 3 31 PCA 4 102 5 7 5 23 6 4 repair philosophy 1 3 specifications 7 5 testing 2 6 2 40 Bezel Assembly 4 59 5 10 5 24 Bottom case assembly 4 121 5 12 Branding Label Set 4 24 5 18 Cable pads cables 5 26 placement 4 2 tie wrap 5 13 Cables Paddles Adapter 5 21 Index Capacitor defibrillator 4 32 4 106 5 8 5 23 discharging 4 26 4 32 power supply 4 26 Case bottom case assembly 4 121 5 12 closing 4 123 discharging capacitors 4 26 4 32 separating 4 28 top case assembly 4 97 5 12 Case Label Set 4 22 5 16 Check Printer 3 16 CODEC test 2 25 Configuration Lost 3 13 Configuration Mode 2 10 3 4 Connect
106. cables sensors accessories battery data card and consumables from defective unit Customer cleans and decontaminates the defective unit Customer packs the defective unit into the box and ships it to Philips Medical Systems Return shipping instructions are included with the exchange unit Table 5 1 M4735A Unit Exchange Part Numbers Description Part Number M4735A Base Unit American English M4735 68900 M4735A Base Unit French M4735 68901 M4735A Base Unit w Pacing American M4735 68910 English M4735A Base Unit w Pacing French M4735 68911 M4735A Base Unit w SpO gt American M4735 68920 English M4735A Base Unit w SpO gt French M4735 68921 M4735A Base Unit w SpO and Pacing M4735 68930 American English M4735A Base Unit w SpO gt and Pacing M4735 6893 1 French Replacement Parts Replacement Parts Tables Replacement Parts Tables These tables provide part numbers for ordering specific replacement assemblies and parts Electrical Assemblies Page Control PCA 5 6 Other Replacement PCAs 5 7 Other Electrical Assemblies 5 7 Individual Electrical Parts 5 9 Mechanical Assemblies Page Bezel Assembly 5 10 Pacer Keypad Assembly 5 11 Other Mechanical Assemblies 5 12 Connector Assemblies 5 12 Individual Mechanical Parts 5 13 Instruction Label Sets 5 14 Case Label Sets 5 16 Other Labels 5 18 Supplies and Accessories Page Supplies amp Accessories 5 19 Key Compo
107. can PCA See Keyscan PCA EL Display on page 4 44 3 Replace the shield plate See Shield Plate on page 4 42 4 Replace and reconnect the Control PCA See Control PCA on page 4 38 5 Reassemble the case See Closing the Case on page 4 123 Removal and Replacement Internal Assemblies Top Case 6 Restore the customer s configuration Enter Configuration Mode and reload the customer s configuration from the data card or reconfigure the unit as needed See Configuration Mode on page 2 10 7 Test performance Conduct Performance Verification Testing as described in Performance Verification and Safety Tests starting on page 2 1 M4735A Service Manual 4 67 Internal Assemblies Top Case 4 65 Display Assembly LCD Display The following sections describe how to remove and replace the Display Assembly for devices with an LCD Display See Identifying the Display Type on page 5 7 for information on what type of Display the device has The Display Assembly is mounted onto a metal shield which then mounted to the back of the Bezel Preparation 1 Save the configuration If possible save the customer s configuration onto a Data Card or print the configuration so the configuration can be restored after the repair is complete Open the case safely See Opening the Case on page 4 26 Disconnect and remove the Control PCA See Control PCA on page 4 38 Remove the Shield Plate Se
108. ce Control PCA M4735A Service Manual 3 15 General Problems Momentary Messages Momentary messages are temporary and only appear on the display for a few seconds They are intended for the end user and appear in the Instructions for Use Momentary messages are duplicated here for the reference of the ser vice person NOTE Before replacing any parts check to see if the cables and flex circuits are properly connected See Servicing Notes on page 4 1 Table 3 4 Momentary Messages Message Attach Cable Possible Cause The patient cable is not properly attached to the device Corrective Action Check the cable connections Attach Leads The user attempted to begin pacing in Demand Mode without ECG leads attached to the patient Attach leads to patient Select Leads With paddles connected and selected as the ECG input the user attempted to activate Syn chronized Cardioversion With no leads connected the user connected paddles and selected them as the ECG input then connected the leads Use leads for ECG Use leads for ECG Attach Pads The multifunction defib electrode pads are not 1 Check the pads are applied to the patient as making proper contact with the patient directed on the package 2 Replace pads if the prompt continues Attach Paddles The user attempted to charge the defib in Man Connect paddles ual Mode with no paddles connected D
109. ce Manual Internal Assemblies Bottom Case Internal Assemblies Bottom Case The sections that follow describe removing and replacing assemblies that reside in the Bottom Case These assemblies include Assembly Battery PCA Defibrillator Capacitor Power PCA Power Supply Patient Connector Replacement Bottom Case Page 4 102 4 106 4 108 4 112 4 118 4 121 4 101 Internal Assemblies Bottom Case Battery PCA The Battery PCA is mounted in the Battery compartment under the Battery Cover It has a cable assembly that enters the case through a rubber gasket Once inside the case the cable assembly connects to the Power PCA and to the Power Supply Preparation 1 Save the configuration If possible save the customer s configuration onto a Data Card or print the configuration so the configuration can be restored after the repair is complete 2 Open the case safely See Opening the Case on page 4 26 Removal 1 Unplug 3 connectors from the Battery PCA See Figure 4 47 on page 4 103 a Unplug the 4 pin connector to the Power PCA the battery connector b Unplug the 2 pin connector to Power PCA c Unplug the 2 pin connector to the Power Supply 2 Pull the Battery PCA up See Figure 4 48 on page 4 103 a Stand the bottom case up on its edge b Pull the Battery PCA straight up out of its slot in the bottom case 3 Pull out the wires and gasket a Remove the gasket from its hole in th
110. ch United Kingdom 07002 43258472 3 33 Calling for Service 3 34 Asia Asia Pacific Australia 1800 251 400 China Beijing 800 810 0038 Hong Kong 852 2876 7578 Macau 0800 923 India New Delhi 011 6295 9734 Mumbai 022 5691 2463 2431 Calcutta 033 485 3718 Chennai 044 823 2461 Bangalore 080 5091 911 Hyderabad 040 5578 7974 Indonesia 021 794 7542 Japan 0120 381 557 Korea 080 372 7777 02 3445 9010 Malaysia 1800 886 188 New Zealand 0800 251 400 Philippines 02 845 7875 Singapore 1800 PHILIPS Thailand 02 614 3569 Taiwan 0800 005 616 Troubleshooting Calling for Service Equipment Information Use the table below to summarize information you ll need when calling for service Model Number Serial Number Location Dept Biomedical Warranty or Support Contract Number M4735A Service Manual 3 35 Calling for Service 3 36 Troubleshooting 4 Removal and Replacement Overview This chapter provides procedures for removing and replacing subassemblies of the M4735A Most of the subassemblies described are available as replace ment parts However some of those described are not available and are included because they need to be removed to service other subassemblies For a complete listing of which subassemblies are available as replacement parts see Replacement Parts beginning on page 5 1 Chapter Content
111. crew holes in the bottom case 2 Connect the Power Supply a Connect the 2 pin in line connector to the Battery PCA be sure it latches b Connect the 6 pin connector to the Power PCA be sure it latches c Connect the 4 pin connector to the Power PCA be sure it latches M4735A Service Manual 4 115 Internal Assemblies Bottom Case 3 Replace the Defibrillator Capacitor Restore the Defibrillator Capacitor to its original position on the Power PCA 4 Replace the screws a Mate the two case halves together b Flip the unit over bottom side up ce Replace the two T15 screws and tighten d Flip the unit rightside up and unmate the case halves Figure 4 55 Replacing the Power Supply Power Supply Notch in Plastic Frame Tab on Power PCA Power PCA 416 Removal and Replacement M4735A Service Manual Internal Assemblies Bottom Case After Repair After repairs are complete perform the following steps 1 Reassemble the case See Closing the Case on page 4 123 Restore the customer s configuration Enter Configuration Mode and reload the customer s configuration from the data card or reconfigure the unit as needed See Configuration Mode on page 2 10 Test performance Conduct Performance Verification Testing as described in Performance Verification and Safety Tests starting on page 2 1 4 117 Internal Assemblies Bottom Case Patient Connector The following
112. ctor has no latch wiggle gently from side to side while pulling it out TIP If the Keyscan PCA is being removed to get access to the Front Bezel or the Display don t disconnect the paddle wires after unscrewing the two screws step 2 below flip the PCA over and lay it component side down on the underside of the Printer bucket i Disconnect the two paddle wires Remove the T10 screws that con nect them to the threaded inserts under the paddle holders For now leave the wires connected to the spade connectors on the PCA NOTE M4735A Service Manual These T10 screws are a different length than the T10 screws used in the rest of the unit Keep them separate by screwing them back into the threaded inserts by hand and leaving them there until needed 4 45 Internal Assemblies Top Case Figure 4 23 Keyscan PCA Connections for Devices with an EL Display Flex Flex Single Wire to Paddle Wires 2 Small Ribbon Cable Circuits 2 Circuits 2 Power PCA to Display to Pacing to Main Keypad Keypad Cable to IrDA PCA Large Ribbon Ribbon Cable to Con Ribbon Cable to Work Cable to Display trol PCA Energy Select Surface Switch 44600000 Removal and Replacement Internal Assemblies Top Case 2 Unscrew and remove the Keyscan PCA a Unscrew the two T10 screws located at the edge of the PCA nearest you they attach the PCA to the threaded standoffs Be sure to unscrew just the screws and not the standoffs b
113. cuits as they originally were with two above and two below the Keyscan PCA Connect the two pacing keypad flex circuits Have the latching top of the connector up then slide the flex circuit into place and push the top down to latch it Connect the small main keypad flex circuit Have the latching top of the connector up then slide the flex circuit into place and push the top down to latch it 4 57 Internal Assemblies Top Case h Connect the large keypad flex circuit NOTE If the Pacing option is not installed there will be only two flex circuits 4 58 After Repair After the repair is complete perform the following steps 1 Replace the Shield Plate See Shield Plate on page 4 42 Replace and reconnect the Control PCA See Control PCA on page 4 38 Reassemble the case See Closing the Case on page 4 123 Restore the customer s configuration Enter Configuration Mode and reload the customer s configuration from the data card or reconfigure the unit as needed See Configuration Mode on page 2 10 Test performance Conduct Performance Verification Testing as described in Performance Verification and Safety Tests starting on page 2 1 Removal and Replacement Internal Assemblies Top Case Bezel Assembly The following sections describe how to remove and replace the Bezel Assembly The Bezel Assembly comes from the factory with the Main keypad and its rubber overlay pre install
114. curately as the serial number is used for all repair history tracking e Check all the displayed information carefully before proceeding e Ifthe displayed information is correct follow the screen prompts to save the configuration e Ifany of the information is incorrect follow the prompts to NOT save the configuration then start over by powering the unit off then back on 4 Turn off the power Wait 2 seconds Remove the Data Card by press ing the black eject button and pulling the card from the compart ment 5 Check the customer configuration a Turn the unit back on and enter Configuration Mode see Configuration Mode on page 2 10 b Print the configuration and check it against the printout from before the servicing began Reset the configuration or load it from a Data Card as needed 6 Verify performance Perform Performance Verification Testing as described in Performance Verification and Safety Tests starting on page 2 1 M4735A Service Manual 2 13 Performance Verification Tests 2 14 Performance Verification Tests This section gives instructions for running Performance Verification tests on the M4735A The tests are sequenced to check more basic functions first and then build on that to check more complex functions We recommend you perform these tests in this sequence If desired you can make copies of the Test Results Matrix page 2 4 and use it to record results The Performance Verifica
115. d Corrective Action Turn power off for 2 minutes then on again Use a new empty HeartStart XL com patible Data Card see Chapter 5 for listing Replace Data Card Data on the card corrupted The card was removed while the unit s power was on Failure on Data Card Only remove Data Card after power is turned off Delete corrupted files using the Event Review Data Management System Replace Data Card Fails Data Card Test in Diagnostic Mode Card is full or not a supported type Failure on Data Card Failure on Control PCA Use a new empty HeartStart XL com patible Data Card see Chapter 5 for listing Replace Data Card Replace Control PCA 3 32 Troubleshooting M4735A Service Manual Calling for Service Calling for Service For telephone assistance call the Philips Response Center nearest to you or visit our website at www medical philips com cms and follow the link for service North America Canada 800 323 2280 United States of America 800 722 9377 Latin America Medical Response Center 954 835 2600 Europe European International Sales 800 323 2280 Austria 01 25125 333 Belgium 02 778 3531 Finland 09 615 80 400 France 0803 35 34 33 Germany 01805 47 50 00 Italy 0800 825087 Netherlands 040 278 7630 Switzerland 0800 80 3000 German 0800 80 3001 Fren
116. d secure it See Reattaching the hooded plastic shield on page 4 71 Reassemble the case See Closing the Case on page 4 123 Restore the customer s configuration Enter Configuration Mode and reload the customer s configuration from the data card or reconfigure the unit as needed See Configuration Mode on page 2 10 Test performance Conduct Performance Verification Testing as described in Performance Verification and Safety Tests starting on page 2 1 Removal and Replacement Internal Assemblies Top Case ECG Out Sync Connector The ECG Out Sync Connector is located at the rear of the top case next to the SpO connector It is part of one assembly with the AC Mains connector For Removal and Replacement procedures see AC Mains Connector on page 4 88 M4735A Service Manual 4 9 Internal Assemblies Top Case Pacer Keypad The following sections describe how to remove and replace the Pacer Keypad Preparation 1 Save the configuration If possible save the customer s configuration onto a Data Card or print the configuration so the configuration can be restored after the repair is complete 2 Open the case safely See Opening the Case on page 4 26 3 Disconnect and remove the Control PCA See Control PCA on page 4 38 4 Remove the Shield Plate See Shield Plate on page 4 42 5 Disconnect and remove the Keyscan PCA See Keyscan PCA EL Display on page 4 44 or
117. d bending as it was originally 4 50 Removal and Replacement M4735A Service Manual Internal Assemblies Top Case After Repair After the repair is complete perform the following steps 1 Replace the Shield Plate See Shield Plate on page 4 42 Replace and reconnect the Control PCA See Control PCA on page 4 38 Reassemble the case See Closing the Case on page 4 123 Restore the customer s configuration Enter Configuration Mode and reload the customer s configuration from the data card or reconfigure the unit as needed See Configuration Mode on page 2 10 Test performance Conduct Performance Verification Testing as described in Performance Verification and Safety Tests starting on page 2 1 4 5 Internal Assemblies Top Case 4 52 Keyscan PCA LCD Display There are two versions of the Keyscan PCA depending what type of Display the device has See Identifying the Display Type on page 5 7 for information Follow the procedures that match your device Preparation 1 Save the configuration If possible save the customer s configuration onto a Data Card or print the configuration so the configuration can be restored after the repair is complete 2 Note the serial number of the device You will need this number when performing the removal and replacement procedures 3 Open the case safely See Opening the Case on page 4 26 4 Disconnect and remove the Control PCA
118. d only when appropriate e Synchronized Cardioversion Shock delivered with correct page 2 19 timing lt 60msec e SpO gt page 2 20 e 95 100 then Functional Check passes Extended Self Test In Diagnostic Mode run the If Pass reported on all tests X x X Extended Self Test page 2 applicable to the device config Example X p Performance Verification and Safety Tests Table 2 1 Performance Verification and Safety Tests Continued Test and Inspection Matrix p Data to Record Test Group Name Test or Inspection to Perform Expected Test Results EPERE User Interface Tests In Diagnostic Mode run the Ifall data within limits all Ux U following tests page 2 27 checks pass x p Example U p e Controls Test e All keys respond as expected e Display Test e Visual Pass assessment by service personnel e Audio Test e Alerts alarms and tones are clearly heard e Printer Test e Print quality is adequate no stray marks or lines e Print speed 25 mm 5 1 25mm then User Interface test passes ECG Tests E In Diagnostic Mode run the If all data within limits all E x ECG Tests page 2 32 checks pass x p Example E p e Status messages lead pad e Good displayed for all three DSP status messages e DC offset e Ignore DC Offset used only in factory manufacturing Amplifier gain e Pads Peak to Peak Monitor e 1000uV 10 e Leads Peak to Peak Diagnos
119. de up Do not get wet a A a Shelf life Long term storage conditions Short term transport storage pora 7 18 Specifications WARNING WARNING WARNING WARNING WARNING WARNING WARNING Safety Considerations Safety Considerations The following general warnings and cautions apply to use of the HeartStart XL Additional warning and cautions specific to a particular feature are provided in the appropriate section The HeartStart XL is not intended to be deployed in settings or situations that promote use by untrained personnel Operation by untrained personnel can result in injury or death Remain attentive to the patient during the delivery of therapy Delay in delivering a shock may result in a rhythm that was analyzed as shockable converting spontaneously to non shockable and could result in inappropriate delivery of a shock Use only the multifunction defib electrode pads battery and accessories listed in Table 5 17 Substitutions may cause the HeartStart XL to function improperly Use multifunction defib electrode pads prior to their expiration date Discard pads after use Do not reuse pads Do not use for more than 8 hours of continuous pacing In AED Mode the multifunction defib electrode pads must be in the anterior anterior position as shown on the packaging The HeartStart XL was not designed to assess data acquired from pads in an anterior posterior posit
120. ded by the Parameter PCA via this same flex circuit The Parameter PCA provides on off logic patient iso lation and the power supply for SpO It then sends the data to the Control PCA via a large ribbon cable The Control PCA is then responsible for e Formatting and presenting the O saturation level pulse rate and pleth bar to the display e Counting pulse rate generating O saturation level alarms e Reporting on the status of the sensor and its connections and alerting the user to measurement problems NOTE 6 8 A functional tester i e simulator or safety analyzer can not be used to assess the accuracy of a SpO probe or an SpO monitor Theory of Operation System Functional Descriptions Defibrillation Functions The following sections describe the defibrillation functions Charging There are three basic events that can initiate a charging cycle e In AED Mode when the analysis algorithm determines a shock is needed and sends a signal to another section of the Control PCA e In Manual Mode with either pads or paddles when front panel key 2 CHARGE is pressed the keypress is transferred from the key to the Keyscan PCA via a flex circuit The Keyscan PCA transfers the keypress to the Control PCA via a large ribbon cable The keypress is then detected and processed by the Control PCA e Also in Manual Mode when the Apex paddle CHARGE key is pressed the keypress is transferred from the key to
121. ded in the Lithium Battery replacement kit Make sure that you clean the contact clips and new battery terminals with a ProGold wipe and replace the cable tie wrap that holds the battery in place See Table 5 5 on page 5 9 for the replacement kit part number Preparation 1 Save the configuration If possible save the customer s configuration onto a Data Card or print the configuration so the configuration can be restored after the repair is complete 2 Open the case safely See Opening the Case on page 4 26 3 Disconnect and remove the Control PCA See Control PCA on page 4 38 Removal Remove the existing battery a Using a pair of fine nose wire cutters cut and remove the cable tie wrap that holds the battery in place See Figure 4 20 and Figure 4 21 for location b Remove the battery from the holder Cleaning a Thoroughly clean the contact clips and new battery terminals with a ProGold wipe Replacement Install the new Lithium battery a Insert the battery into the holder CAUTION 4 36 Be sure to install the new battery with the correct orientation Follow the polarity markings on the bottom of the battery holder under the battery b Secure it in place with a new cable tie wrap Removal and Replacement M4735A Service Manual Internal Assemblies Top Case After Repair After the repair is complete perform the following steps 1 Replace and reconnect the Control PCA
122. device contains a hooded plastic shield over the Parameter PCA the removal and replacement procedures are slightly different for the following assemblies e Parameter PCA e SpO2 PCA e SpO2 Connector e ECG Connector e AC Mains Connector Follow the steps in this section to detach and reattach the hooded plastic shield Detaching the hooded plastic shield 1 Using a small flathead screwdriver pry the shield adhesive off of the case 2 Lift the hood of the shield to expose the Parameter PCA Reattaching the hooded plastic shield 1 Clean the Parameter PCA recess of the top case with isopropyl alcohol and allow it to dry 2 Peel one side of the shield adhesive 3 Place the adhesive on the short side of the shield that is half aluminum and half plastic 4 Remove the other side of the shield adhesive 5 Push the flap of the shield down and firmly press it against the printer bucket for several seconds to secure the shield Figure 4 34 Hooded Shield Shield Adhesive M4735A Service Manual 4 7 Internal Assemblies Top Case Parameter PCA The Parameter PCA is located in the top case behind the printer bucket Depending on the serial number and type of Display your device may have a plastic shield under the Parameter PCA Additionally there are two types of plastic shields one with a hood and one without See Identifying the Display Type on page 5 7 for information on what type of Display the device ha
123. displayed by the M4735A The results displayed by the M4735A should be as follows Available Energy Not recorded failure if gt 0 ms to Charge lt 3000 Delivered Energy Actual delivered energy 7 Impedance 42 to 57 ohms Peak Current Ignore Derived from same measurements as delivered energy and impedance Defib Errors Not recorded failure if any reported NOTE 2 40 If the ms to Charge measurement is too high unit takes too long to charge verify that the battery is fully charged If it is the battery may simply be old The 3000 ms specification is defined for a new freshly charged M3516A battery Replace the battery with one that is new and fully charged and repeat the test Performance Verification and Safety Tests Performance Verification Tests Defibrillator Disarm Test These instructions describe how to test the disarm function If all results are as described the unit passes the test Return to the main Diagnostic Test menu by pressing MAIN If there is any failure begin troubleshooting and repairing the unit as needed See Troubleshooting on page 3 1 1 Set up the test a Turn the defibrillator off Insert the battery and connect the AC Power cord b Connect the defibrillator analyzer to the pads cable Set the analyzer to measure delivered energy If needed reset the analyzer s display to read 0 c Turn the defibrillator on From the Diagnostic Menu
124. ds Pads Cables Adapters and gray flat connector M3713A Multifunction Adult Plus Pads Adult Plus multifunction defib pads general use M3716A Multifunction Adult Radiolucent Pads Adult Radiolucent multifunction defib pads special purpose for X ray and special procedures M3717A Multifunction Pediatric Plus Pads Pediatric multifunction defib pads general use M3718A Multifunction Adult Radiotransparent Reduced Skin Irritation Pads Adult Radiotransparent Reduced Skin Irritation multi function defib pads special purpose for X ray and special procedures M3719A Multifunction Pediatric Radiotransparent Reduced Skin Irrita tion Pads Pediatric Radiotransparent Reduced Skin Irritation multifunction defib pads special purpose for X ray and spe cial procedures M3508A Defibrillator pads cable plug connector M3725A 50 ohm defibrillator test load plug connector Paper 40457C 50 mm Strip Chart Thermal Paper 1 box 10 rolls 40457D 50 mm Strip Chart Thermal Paper 1 box 80 rolls External Paddles M4745A Sterilizable External Paddles with PCI M4746A External Paddles with PCI M1789A Replacement Adult Paddle Electrode clips onto external pad dle 5 20 Replacement Parts Supplies amp Accessories Table 5 17 Upgrades Supplies and Accessories Continued Part Number Description
125. e English Serial Number US01000241 Options Pacer Sp02 Shocks 2 M4735A Service Manual 2 23 Performance Verification Tests Extended Self Test The Extended Self Test checks that all internal processors are operating and communicating with each other If all results are as described the unit passes this test Return to the main Diagnostic Test menu by pressing MAIN If there is any failure begin troubleshooting and repairing the unit as needed See Troubleshooting on page 3 1 and Table 3 6 Extended Self Test Failures on page 3 19 NOTE Be sure the printer has paper and that the printer door is closed No paper or an open door will generate an erroneous Fail in the Timebase test Make sure that no one touches the unit during the self test as that can generate an erroneous Not Tested or Fail message 1 Connect the test load to the pads cable 2 Access the Diagnostic Test menu See Diagnostic Mode on page 2 11 3 Run the test Select Extended Self Test and press ENTER The printout should appear similar to Figure 2 3 Figure 2 3 Sample Extended Self Test Printout M4735A EXTENDED SELF TEST 18 48 8 29 2000 RAM Pass ROM Pass Syst em Pass Data Card Not Tested CODEC Pass IRDA Not Tested Timebase Pass Defib Pass FE p02 Pass Pacer Pass 2 24 Pass Performance Verification and Safety Tests Performance Verification Tests 4 Check the results a M4735A S
126. e Shield Plate on page 4 42 Disconnect and remove the Keyscan PCA See Keyscan PCA LCD Display on page 4 52 Remove the Front Bezel See Bezel Assembly on page 4 59 Removal 1 Remove the Display a Unscrew the two T10 screws in the corners of the Display See Figure 4 33 on page 4 69 b Lift the display off the bezel and set it display side down on a static protected surface Remove the metal shield and place to the side a Disconnect both 2 wire bundles b Disconnect the flex circuit from the display and PCA c Disconnect the 8 wire bundle and place it to the side You will be replacing them later a Unscrew the four T10 screws b Remove the grounding wire and place it to the side You will be replacing this later Removal and Replacement Internal Assemblies Top Case Replacement 1 Replace the metal shield a Place the metal shield onto the back of the Display Line the shield up with the large opening over the flex circuit b Secure the grounding wire to the metal shield with a T10 screw ce Secure the shield to the back of the Display with the remaining 3 T10 screws 2 Connect the cables a Connect both 2 wire bundles to the inverter board on the metal shield b Connect the 8 wire bundle to the inverter board on the metal shield c The replacement display may have come with a new flex circuit pre attached If it did connect the free end of the flex circuit to the PCA and di
127. e 1000uV 10 tic Amplifier noise e Leads Peak to Peak Diagnos e 0 30uV tic cc e Pads Peak to Peak Monitor e0 30uV dd PCI measurement e PCI Paddles in Pockets 504300 e PCI Paddles open e gt 12500 then ECG Test passes Pacing Test P In Diagnostic Mode run the All data within limits all P x Pacing Test page 2 37 checks pass x p Example P p e 70 ppm 30 mA 30mA 5mA e 180 ppm 200mA e 200mA 20 mA M4735A Service Manual 2 5 Test and Inspection Matrix Table 2 1 Performance Verification and Safety Tests Continued Data to Record normal operation at 200Joules page 2 39 Measured by Defibrillator Analyzer e Delivered energy Displayed by M4735A e Available Energy after Shock e Msec to charge e Delivered energy e Impedance e Defib errors e 200 30J 0 e lt 15000 msec e Actual delivered energy 7 42 to 57Q e None 0 then the Defibrillator test AC Power passes Test Group Name Test or Inspection to Perform Expected Test Results p pager nil Defibrillator Test Using only AC power enter All data within limits all DA x AC Power DA Diagnostic Mode and run the checks pass x p If the mea Example DA p if AC Power used in Defibrillator Test AC Power surements are as follows Defibrillator Test Using only battery power All data within limits all DB x Battery Power DB enter Diagnostic Mode and checks p
128. e Battery Eject Button all the way in and hold it in b Using a small flat bladed screwdriver press in the catch on the Eject Button and slide the Eject Button out of the case Note the orientation of the Eject Button See Figure 4 6 TIP The catch is located in the narrow slot in the bottom case that points to the eject button See Figure 4 6 3 Remove the Battery Eject Catch Pull the Battery Eject Catch up out of its slot in the case There will be a long spring the Battery Catch Spring inside the catch Note the orientation of the Catch in its slot Figure 4 6 Battery Eject Mechanism Case With battery cover removed Eject button Catch on Eject Button Battery Eject Catch M4735A Service Manual 4 15 External Assemblies 4 16 Replacement 1 Install the Spring into the Catch Insert the new Battery Catch Spring into the hole in the end of the new Battery Eject Catch Install the Battery Eject Catch Insert the new Battery Eject Catch into its open slot in the bottom case Orient it so the spring points toward the Data Card Door and the triangular plastic catch faces up toward you through the open slot Install the Battery Eject Button a Insert the Battery Eject Button into its hole in the bottom case b Push the Eject Button all the way in to engage its catch and prevent it from falling back out Check to be sure the Eject Button and Eject Catch slide freely and operate correctly Rep
129. e and dashed line appear on the display if an electrode or lead wire becomes disconnected while a lead is selected Paddle Fault NO PADDLES CONNECTED message and dashed line appear on the display in Manual Mode if paddles become disconnected Pad Fault PADS OFF message and dashed line appear on the display if a pad becomes disconnected Heart Rate Display Digital readout on display from 15 to 300 bpm with an accuracy of 10 7 3 Specifications Heart Rate Alarms Configurable pairs of low and high heart rate alarm limits 30 to 100 60 to 140 90 to 160 and 120 to 200 bpm Hands Free Defibrillation Patient Cable Length 7 ft 2 13 m ECG Cable Length 12 ft 3 7 m Common Mode Rejection Greater than 90 dB measured per AAMI standard for cardiac monitors EC 13 ECG Size 2 5 5 10 20 40 mm mV Frequency Response AC Line Filter 60 Hz 50Hz Pads ECG for Display Monitor 15 40 Hz or EMS 1 30 Hz Pads ECG for Printer Monitor 15 40 Hz or EMS 1 30 Hz Leads ECG for Display Monitor 15 40 Hz or EMS 1 30 Hz Leads ECG for Printer Diagnostic 05 150 Hz or EMS 1 30 Hz or Monitor 15 40 Hz Patient Isolation defibrillation proof ECG Type CF SpO Type CF Defib Type BF External paddles pads Type CF Internal paddles NOTE 7 4 The HeartStart XL supports two types of Displays EL or LCD See Identifying the Display Type on page 5 7 for information Display EL
130. e case TIP Depress the tabs on the gasket inside the case with a small straight bladed screwdriver Then pull from the outside of the case and push from the inside to work the gasket free b Guide the wires and their connectors out of the hole 4102200 CS Ssti Removal and Replacement Internal Assemblies Bottom Case Figure 4 47 Battery PCA connections 2 Pin Connector 2 Pin Connector to to Power PCA Power Supply 4 Pin Connector to Power PCA Battery Connector Figure 4 48 Removing the Battery PCA Battery PCA Spring Battery PCA Gasket Battery Eject Spring M4735A Service Manual 4 103 Internal Assemblies Bottom Case Replacement 1 Insert the wires and gasket into the case a Start with the two halves of the case mated together Turn the unit over so the bottom faces up a Guide the wires and connectors from the new PCA into the hole in the bottom case b Install the new gasket into the hole TIP The gasket is fully seated when its tabs protrude out evenly around the hole on the inside of the case 2 Replace the Battery PCA into position a Install the Battery Plate Spring onto the standoff on the Battery PCA b Install the Battery PCA into its slot in the case 3 Flip the case over and plug in the three connectors a Turn the case over so the top faces up b Open the case c Plug the 4 pin connector onto the Power PCA the battery connector d
131. e extreme caution while the unit cover is removed Follow the instructions in Discharge the Defibrillator Capacitor on page 4 32 CAUTION Always discharge the power supply capacitors before servicing the M4735A Follow the instructions given in Discharge the Power Supply Capacitors on page 4 26 CAUTION 3 6 Be sure to work in a static free environment Use an electrostatic wrist band The work surface and area surrounding it must be static free Use an antistatic pad which is grounded per the manufacturer s instructions Check the repair When the repair is complete it is good practice to check the repair by attempting to reproduce the specific problem found It is also advisable to print the System Log again to check that no errors have been logged after the repair Once you are satisfied the problems have been repaired proceed to Verify on page 3 7 Troubleshooting Verify Verify Use the procedures found in the Performance Verification and Safety Tests chapter to verify that the unit is operating properly Be sure the testing per formed is appropriate for the level of repair The requirements for testing are described in detail beginning with External Repairs No Trouble Found on page 2 2 NOTE If software upgrades were done as part of the repair process point the cut somer to the Philips Documents and Downloads web site www medical phil ips com goto productdocumentation for the lates
132. e the printer the Control Printed Circuit Assembly PCA and selected connectors and other items Repairs that involve replacing com ponents on a PCA are not supported CAUTION Individual component replacement should not be attempted outside of a fac tory authorized repair facility Component level repair is extremely difficult due to the extensive use of surface mount technology and the high parts den sity on the circuit boards Unauthorized component replacement can impair performance of the M4735A Batteries The repair philosophy for the SLA battery M3516A is unit replacement Ifa battery fails it is replaced not repaired For information on ordering replacements see Supplies amp Accessories on page 5 19 M4735A Service Manual 1 3 Overview 1 4 Introduction Overview 2 Performance Verification and Safety Tests Overview This chapter describes the tests and inspections required to verify performance of the M4735A Portable Defibrillator Monitor Chapter Contents The major sections of this chapter are as follows Section Required Testing Levels Test and Inspection Matrix Test Equipment Configuration and Diagnostic Modes The Language Support Tool Performance Verification Tests M4735A Service Manual Page 2 2 2 4 2 9 2 10 2 12 2 14 2 1 Required Testing Levels 2 2 Required Testing Levels The Performance Verification Tests in this chapter are intended to verify prope
133. e voltage CAUTION Be aware of patient cables including ECG monitoring equipment when used with high frequency surgical equipment NOTE If software upgrades were done as part of the repair process point the cut somer to the Philips Documents and Downloads web site www medical phil ips com goto productdocumentation for the latest versions of the HeartStart XL Instructions for Use and other documentation M4735A Service Manual 7 21 Electromagnetic Compatibility WARNING 7 22 Electromagnetic Compatibility When using the M4735A HeartStart XL Defibrillator Monitor electromag netic compatibility with surrounding devices should be assessed A medical device can either generate or receive electromagnetic interference Testing for electromagnetic compatibility EMC with and without the appro priate accessories has been performed according to the international standard for EMC for medical devices IEC 60601 1 2 This IEC standard has been adopted in Europe as the European Norm EN 60601 1 2 The EMC standards describe tests for both emitted and received interference Emission tests deal with interference generated by the device being tested Radio frequency RF interference from nearby transmitting devices may degrade performance of the M4735A HeartStart XL Defibrillator Monitor Electromagnetic compatibility with surrounding devices should be assessed prior to using the defibrillator Reducing Electr
134. ealed This could result in water damage to the defibrillator Be sure to maintain the water resistant seal by e Replacing all gaskets in their proper locations e Correctly assembling all parts that mate with gaskets making sure the gaskets are not wrinkled or pinched e Replacing all screws e Making sure that screws are not cross threaded and that they are tightened firmly Tool Requirements The following tools are needed to perform the procedures in this chapter e Torx T10 and T15 drivers or Torx driver kit part number 5181 1933 T15 driver shaft should be at least 2 25 long and less than 5 16 in diameter to reach down to recessed case screws e Slip joint pliers or adjustable open end wrench e Small straight bladed screwdriver e Straight tip needle nose pliers or tweezers e Bent tip needle nose pliers whose jaws are covered with a soft material such as plastic tubing or tape e Fine nose wire cutters e Utility knife e High voltage discharge tool for discharging the defibrillator capacitor part number M2475 69572 e Clip leads at least 2 each approx 10 18 e Language Support Tool see Table 5 2 on page 5 6 for part numbers M4735A Service Manual 4 3 Servicing Notes WARNING 4 4 Disposal Disposing of the M4735A Prior to disposing of the M4735A remove the battery Then dispose of the device in accordance with local standards Disposal of the device with the battery inse
135. ect the IrDA break off PCA For devices with serial number USO0O2XXXXX or USOO3XXXXX place the ferrites on the two pacing keypad flex circuits Route the flex circuits as they originally were with two above and two below the Keyscan PCA Connect the two pacing keypad flex circuits Have the latching top of the connector up then slide the flex circuit into place and push the top down to latch it Reposition the ferrites as shown in Figure 4 26 4 49 Internal Assemblies Top Case h For devices with serial number USOO2XXXXX or USO03XXXXX place the ferrite on the small main keypad flex circuit Place the metal bracket with the attached ferrite on the large keypad flex circuit i Connect the small main keypad flex circuit Have the latching top of the connector up then slide the flex circuit into place and push the top down to latch it Reposition the ferrite as shown in Figure 4 26 j Connect the large keypad flex circuit Guide the metal bracket into place while sliding the flex circuit in Push the top of the connector down to latch it k Secure the bracket by placing the T10 screw into place Hold the nut in place with your finger or needle nose pliers while tightening the screw Figure 4 26 Ferrites and Metal Bracket Placement Metal bracket Ferrites NOTE If the Pacing option is not installed there will be only two flex circuits 1 Connect the large ribbon cable keeping its orientation an
136. ecures SpO PCA to Parameter PCA T15 M4 flat head screws 0515 2044 Used only for securing paddle holder to case T15 M4X10 screws 0515 0380 Used for case exterior Rubber Feet M4735 69562 Includes 4 feet Energy Select Knob M4735 69565 Includes metal retainer clip inside shaft hole Metal Clip M4735 40019 Metal contact clip for paddles Also supplied with Paddle Holder Assembly M4735 69561 Hooded plastic shield M4735 49021 Used with Parameter PCA Items marked with an asterisk contain Key Components which require tracking See Table 5 18 on page 5 23 M4735A Service Manual 5 13 Labels 5 14 Labels The labels used on the M4735A are divided into 4 groups the Instruction Label Set the Case Label Set the Branding Label Set and the Speaker Label Fach set of labels is one sheet containing all the labels in that set For details of which label is part of which set see Labels on page 4 22 Instruction Label Sets The Instruction Label Set is available for units both with and without pacing in the following supported languages See Figure 4 10 on page 4 23 for cor rect placement of these labels Table 5 11 Instruction Label Sets Without Pacing Language Part Number English M4735 69600 French M4735 69601 German M4735 69602 Dutch M4735 69603 Spanish M4735 69604 Italian M4735 69605 Swedish M4735 69606 Japanese M4
137. ed The keypad and overlay are not available separately if the rubber or keypad are damaged the entire Bezel Assembly must be replaced The Bezel Assembly is available in all the supported languages See Table 5 6 on page 5 10 for part numbers Preparation 1 Save the configuration If possible save the customer s configuration onto a Data Card or print the configuration so the configuration can be restored after the repair is complete 2 Open the case safely See Opening the Case on page 4 26 3 Disconnect and remove the Control PCA See Control PCA on page 4 38 4 Remove the Shield Plate See Shield Plate on page 4 42 5 Disconnect and remove the Keyscan PCA See Keyscan PCA EL Display on page 4 44 or Keyscan PCA LCD Display on page 4 52 Removal 1 Unscrew the two threaded standoffs Using a pliers or wrench loosen the two standoffs and remove them See Figure 4 30 on page 4 60 2 Remove the plastic shield if present and put it aside You will need to replace this shield later 3 Release the six locking clips Release each of the six locking clips inside the case by pulling up toward you until the clip unlatches from its mating case tab TIP Unlatch the two clips nearest you first below the IrDA PCA and below the speaker Then pivot the Bezel Assembly out from the case and release the 4 clips along the other edge of the Bezel Assembly 4 Lift the Bezel Assembly off the front of
138. ed two black b Disconnect the small 2 pin connector press on the latch to release 3 Disconnect the Power Supply a Disconnect the 6 pin connector from the Power PCA press on the latch to release Note it only carries three wires b Disconnect the 4 pin connector from the Power PCA press on the latch to release 4 Disconnect the Control PCA ribbon cable Disconnect the large ribbon cable from the Control PCA Its other end should already be disconnected from the Control PCA 4108 Removal and Replacement Internal Assemblies Bottom Case Figure 4 50 Disconnecting the Power PCA 9 Pin Connector to High Voltage High Voltage 6 Pin Connector to Patient Connector Spade Connectors to Spade Connectors to Power Supply Patient Connector Defibrillator Capacitor Two Total Two Total Power PCA Large 4 Pin Connector to 4 Pin Connector 2 Pin Connector Battery PCA to Power Supply to Battery PCA Battery Connector M4735A Service Manual 4 109 Internal Assemblies Bottom Case 5 Remove the Power PCA a Remove the 6 T10 size screws from the Power PCA b Pull the Power PCA up and guide it around the Patient Connector and the case post TIP Lift the back edge of the PCA nearest the Power Supply first Then guide the PCA out to the right to clear the Patient Connector and the case post and lift the PCA clear of the case WARNING Leave the shield in place in the bottom case under the Power PCA Be careful not to
139. efib Disarmed The defib is disarmed and no energy is avail able due to one of the following The pads connection is compromised e The mode is changed from Manual to AED while the defibrillator is charged e SHOCK is not pressed within 30 seconds of the defibrillator being charged e DISARM is pressed e Check the pads are applied to the patient properly e If a shock is indicated deliver the shock before changing modes e To deliver a shock press SHOCK within 30 seconds of the defibrillator being charged e None No Shock Delivered Patient impedance is too high or too low 1 Make sure pads are applied properly 2 Replace the pads 3 Replace the pads cable Check Printer Printer paper is absent or jammed the printer door is not closed properly 1 Reload printer paper 2 Make sure the door is closed properly 3 16 Troubleshooting Table 3 4 Momentary Messages Continued General Problems Message Data Card Full Possible Cause No data is being recorded on the Data Card due to one of the following The incident is more than 2 hours in duration causing the Data Card to fill e An empty Data Card was not inserted for the incident the Data Card filled sooner than expected Corrective Action e None A new Data Card can not be inserted during an incident e Use one empty Data Card per incident patient to decrease the chance of the card fill ing
140. either AED Mode or Manual Mode In Manual Mode energy selection is made by rotating the Energy Select Switch to the appropriate position The Energy Select Switch signals pass through the Keyscan PCA and then on to the Control PCA via a large ribbon cable The Control PCA then interacts with the other parts of the system as needed to respond to the setting of the Energy Select Switch Printing Functions All printing data are handled by the Control PCA Waveforms graphics numeric values and messages are all generated and formatted by the Control PCA using either data it has or data it receives from other parts of the unit This data is then passed to the Printer via the printer ribbon cable Contrast The printing contrast is controlled automatically by the Printer itself The printhead senses its own temperature and impedance and passes that information to the Control PCA The Control PCA adjusts drive voltage to the printhead and thus contrast based on these readings and on battery voltage Out of Paper Door Open The printer also incorporates an optical sensor that detects when there is no paper left or when the printer door is open The information is passed to the Control PCA via the printer ribbon cable and the Control PCA generates the appropriate screen message and tones to alert the user Battery Power Functions Refer to Figure 6 3 on page 6 14 and Figure 6 4 on page 6 15 for the following descriptions Power for cha
141. el the label above the printer giving a brief overview of device operation This label comes in two versions for units with and without the Pacing option Each of these versions is available in all the supported languages see Tables 5 11 and 5 12 for part numbers See Figure 4 10 for locations of these labels Case Label Set The Case Label Set includes the following labels e ECG SpO Connector label includes Warnings and Notices Data Card Eject label Patient Connector label Blank label under hole plug next to Data Card Charge Battery label on bottom of case Printer label arrow on printer sliding door The Case Label Set comes in two versions for units with and without the SpO monitoring option Each of these versions is available in all the sup ported languages see Tables 5 13 and 5 14 for part numbers See Figure 4 10 and Figure 4 11 for locations of these labels Removal and Replacement External Assemblies Figure 4 10 Instruction Label and Case Label Locations Ar Connector Label struction Label E Printer Label Patient Connector Label Eject Data Card Label Blank Label M4735A Service Manual 4 23 External Assemblies Branding Label Set Branding labels include e Philips label e HeartStart XL label Both of these are located on the handle They do not have language localiza tion See Figure 4 12 for locations Figure 4 12 Branding a
142. er Overlay Rubber Membrane Overlay Switches M4735A Service Manual 4 95 Internal Assemblies Top Case 4 96 After Repair After repairs are complete perform the following steps 1 Replace the Bezel See Bezel Assembly on page 4 59 Replace the Keyscan PCA See Keyscan PCA EL Display on page 4 44 or Keyscan PCA LCD Display on page 4 52 Replace the Shield Plate See Shield Plate on page 4 42 Replace and reconnect the Control PCA See Control PCA on page 4 38 Reassemble the case See Closing the Case on page 4 123 Restore the customer s configuration Enter Configuration Mode and reload the customer s configuration from the data card or reconfigure the unit as needed See Configuration Mode on page 2 10 Test performance Conduct Performance Verification Testing as described in Performance Verification and Safety Tests starting on page 2 1 Removal and Replacement Internal Assemblies Top Case Replacement Top Case The following sections describe how to remove and replace the Top Case Assembly Description The top case assembly consists of the following components all preassem bled into the case at the factory Bezel gasket IRDA lens Printer ribbon cable Case standoffs tall hex posts One will be installed one will be supplied loose Hole plug and gasket for SpO hole Speaker label Branding labels NOTE The two case standoffs are different col
143. erformance Verification Testing as described in Performance Veri fication and Safety Tests starting on page 2 1 41200 Removal and Replacement External Assemblies Main Fuse The main fuse is located on the Battery PCA which is under the Battery Cover Removal 1 Remove the Battery Cover See Battery Cover on page 4 11 2 Remove the fuse a Pull out the Battery PCA far enough to access the fuse b Remove the fuse by pulling straight up from PCA as shown in See Figure 4 5 on page 4 13 Figure 4 5 Removing the Main Fuse Battery Eject Spring Battery PCA Spring Battery PCA Main Fuse M4735A Service Manual 4 13 External Assemblies Replacement 1 Snap the new fuse into position on the PCA 2 Restore the Battery PCA to its original position Push the Battery PCA back into the case being sure the lower edge of the PCA engages the slot in the bottom case 3 Replace the battery cover See Battery Cover on page 4 11 After Repair Conduct Performance Verification Testing as described in Performance Veri fication and Safety Tests starting on page 2 1 BA Removal and Replacement External Assemblies Battery Eject Assembly The Battery Latch engages when the battery is fully inserted in the battery compartment and it is released by pushing the Battery Eject Button Removal 1 Remove the Battery Cover See Battery Cover on page 4 11 2 Remove the Battery Eject Button a Press th
144. ernal Assemblies Top Case Replacement Replace the IrDA break off PCA 1 If the IrDA PCA was removed replace it now a b c Connect the cable to the IrDA PCA Place the IrDA PCA in position inside the top case Replace the two screws Connect the three individual wires to the Keyscan PCA a Connect the longest wire to the spade connector at the lower left edge of the PCA This wire has spade receptacles on both ends Connect the other two wires to the spade connectors at opposite side edges of the PCA on either end of the power resistors These wires have ring terminals on their other ends Install the Keyscan PCA a c Align the bottom edge of the PCA with the mating slots in the case Note that there is also a slot in the PCA which must line up with a rib on the case See Figure 4 28 As you lay the PCA against the threaded standoffs guide the 8 wire bundle through the window in the Keyscan PCA Make sure the flex circuit is not caught underneath the PCA Replace the two T10 screws and tighten Reconnect the Keyscan PCA a Connect the two paddle wires to the paddles pockets Connect the dis play flex circuit If you removed the Energy Select Switch replace it and connect it to the Keyscan PCA Be sure the connector latches into position securely Connect the display 8 wire bundle and display grounding wire spade connector Connect the IrDA break off PCA Route the flex cir
145. ervice Manual Check the time and date e Check the printout to verify that the time and date are correct e Ifthey are not reset them using the Configuration Mode See Configuration Mode on page 2 10 Check the test results The results of the following tests will appear on the display and on the printout e RAM Tests the Random Access Memory RAM e ROM Tests the Read Only Memory ROM e System Tests the integrity of the core processing system and checks the Lithium backup battery Data Card The Data Card test writes a small file to the Data Card reads it back and checks it then erases that file If no Data Card is present the test result will be Not Tested CODEC The processor turns on the CODEC coding decoding chip used for voice prompts and gets an acknowledgement that it s ready to receive data It does not give the CODEC actual data to process IRDA Tests the infrared communications port If no active infrared device is within range the test result will be Not Tested Timebase The Timebase test compares the Real Time clock to the System clock to check for discrepancies It does not test the SpO clock or the Biphasic clock 2 25 Performance Verification Tests e DEFIB The Defib test charges the defibrillator capacitor and then disarms it It does not deliver the energy outside the unit The pads cable and test load must be connected for the test to run otherwise the test resu
146. essing circuits Pads Replace Power PCA Leads Replace Parameter PCA Replace Control PCA One or more ECG controls don t respond e g select lead or ECG size Failure in keypress detection process ing Failure in keys connections 1 Replace Control PCA 2 Replace Keyscan PCA Replace Top Case Assembly Poor leads ECG signal quality See also Noisy trace constant noise on the baseline on page 3 20 and Noisy trace intermittent bursts of noise or random spikes on page 3 21 The monitoring electrodes are not mak ing proper contact with the patient The monitoring electrodes are outdated or dried out Radio frequency interference RFI is causing artifact Check that the monitoring electrodes are properly applied If nec essary prepare the patient s skin and apply new electrodes Check the date code on the electrodes Do not open the electrode package until immediately prior to use Relocate or turn off equipment that may be causing RFI Poor paddles pads ECG signal quality See also Noisy trace constant noise on the baseline on page 3 20 and Noisy trace intermittent bursts of noise or random spikes on page 3 21 The paddles or multifunction pads are not making proper contact with the patient The multifunction pads are outdated or dried out Radio frequency interference RFI is causing artifact Check that the paddles or pads are prop
147. ezel Assembly with Energy Select switch and Display attached see Bezel Assembly on page 4 59 8 AC Mains Connector and ECG Out Connector see AC Mains Connec tor on page 4 88 9 SpO connector and flex circuit if present see SpO2 Connector on page 4 84 10 ECG connector with cable and ferrite see ECG Connector on page 4 81 11 SpO PCA if present and flex circuit see SpO2 PCA on page 4 78 The flex circuit will be reused 12 Parameter PCA see Parameter PCA on page 4 72 13 Speaker and mounting hardware see Speaker on page 4 86 4 98 Removal and Replacement Internal Assemblies Top Case New parts to be installed provided with top case The Replacement Top Case Assembly comes with the following new compo nents which must be installed in the field Do not reuse the old gaskets or retaining clips e ECG SpO connector gaskets not available separately see ECG Connector on page 4 81 and SpO2 Connector on page 4 84 e ECG SpO connector retaining clips M2475 07101 see ECG Con nector on page 4 81 and SpO2 Connector on page 4 84 e Short hex standoffs see Keyscan PCA EL Display on page 4 44 or Keyscan PCA LCD Display on page 4 52 e ECG Holder see ECG Connector on page 4 81 e Case standoff see ECG Connector on page 4 81 NOTE The two case standoffs are different colors They are slightly different lengths and are not interchangeable Ne
148. for ee domestic purposes IEC 61000 3 2 Voltage fluctua Complies tions flicker emissions IEC 61000 3 3 Specifications Electromagnetic Compatibility Table 7 6 Electromagnetic Immunity General Immunity Test Electrostatic dis IEC 60601 Test Level 6 kV contact Compliance Level 6 kV contact Electromagnetic Environment Guidance Floors should be wood con charge ESD 8 kV air 8 kV air crete or ceramic tile If floors IEC 61000 4 2 are covered with synthetic mate rial the relative humidity should be at least 30 Electrical fast 2 kV for power 2 kV for power Mains power quality should be transient burst supply lines supply lines that of a typical commercial or IEC 61000 4 4 1 kV for input output lines 1 kV for input output lines hospital environment Surge IEC 61000 4 5 1 kV differen tial mode 2 kV common mode 1 kV differen tial mode 2 kV common mode Mains power quality should be that of a typical commercial or hospital environment Voltage dips short lt 5 U lt 5 U Mains power quality should be interruptions and gt 95 dipin Ur gt 95 dip in that of a typical commercial or voltage variations far 5 oyde Ux for 0 5 cycle hospital environment If the user on power supply v o of the HeartStart XL requires input lines ave ge ave UE continued operation during IEC 61000 4 11 60 dip in Uy
149. from the data card or reconfigure the unit as needed See Configuration Mode on page 2 10 Test performance Conduct Performance Verification Testing as described in Performance Verification and Safety Tests starting on page 2 1 Removal and Replacement Internal Assemblies Top Case Energy Select Switch The following describes how to remove and replace the Energy Select Switch Preparation 1 Save the configuration If possible save the customer s configuration onto a Data Card or print the configuration so the configuration can be restored after the repair is complete 2 Open the case safely See Opening the Case on page 4 26 3 Remove the Energy Select Knob Grasp the knob and pull straight out from the Front Bezel TIP To get a better grip on the knob try wearing rubber gloves Removal Disconnect and remove the Energy Select Switch a Unlatch the connector and unplug it from the Keyscan PCA b Using a pliers or wrench loosen and remove the large nut holding the Energy Select switch into the Bezel Remove the switch Figure 4 31 Energy Select Switch and Knob Dark Stripe on Ribbon Cable Energy Select Switch Square Ribs on Bezel Lockwasher Nut Energy Select Knob M4735A Service Manual 4 63 Internal Assemblies Top Case Replacement Replace and reconnect the Energy Select Switch a Insert the Energy Select switch into the hole in the Bezel Orient it as show
150. g and Repair Methodology Troubleshooting and Repair Methodology Following are the major topics covered Section Page Methodology Overview 3 2 Evaluate 3 3 Troubleshoot 3 5 Repair 3 6 Verify 3 7 Methodology Overview We recommend using the methodology described below to isolate and repair problems with the M4735A Each of these steps is explained in detail in the pages that follow Evaluate This initial phase of the service call involves evaluating the operation of the M4735A and identifying problems This is typically a broad search for infor mation with the goal being to find all useful clues not to pinpoint a cause At the end of this phase the problem s have been identified Troubleshoot This phase of the service call begins by identifying a wide range possible causes for the problems observed The work then becomes more focused performing additional tests as needed to eliminate or prove the possible causes At the end of this phase the cause s of the problem s are known Repair Having identified the causes focus now shifts to repairing those causes by replacing subassemblies as needed At the end of this phase the unit is reas sembled and working and ready to be tested Verify This final phase of the service call involves performing the appropriate level of Performance Verification testing and documenting the results At the end of this phase the unit is verified to be working correctly and can be ret
151. ge try another sensor and cable damaged Non Pulsatile The patient s pulse is absent or too weak to be 1 Check that the sensor is applied detected properly 2 Make sure the sensor site has a pulse 3 Relocate the sensor to a site with improved circulation 4 Try another sensor 3 14 Troubleshooting General Problems Table 3 3 System Messages Continued Message Description Corrective Action aaa a aa A p02 Low Signal SpO signal is too low to give an accurate 1 Check the sensor is applied properly reading 2 Try another sensor type p02 Noisy Signal Excessive patient movement electrical inter 1 Minimize patient movement or apply the ference or optical interference is present sensor to a site with less movement 2 Secure the sensor cable loosely to the patient 3 Reduce sources of electrical or optical inter ference p02 Sensor Fail The SpO cable is not connected to the device 1 Attach the cable to the M4735A or the cable or sensor are broken 2 Replace cable and or sensor p02 Failure A failure has occurred in the SpO 1 Replace the SpO2 PCA circuitry 2 Ensure that the flex circuit from the Spo2 PCA to the Parameter PCA is connected 3 Replace the SpO2 connector System Failure Cycle A serious error has occurred See System Errors on page 3 5 Power Service Unit Appears during the Shift System Check 1 Replace Data Card 2 Replace lithium battery 3 Repla
152. ge current limits may be exceeded Do not use a second defibrillator on the patient while pacing with the HeartStart XL NOTE The HeartStart XL can be operated with only AC line power only 12v M3516A SLA Battery or AC power and M3516A SLA battery simultaneously WARNING Avoid contact between the patient and conductive fluids and or metal objects such as the gurney Contact with metal objects could cause unintentional current pathways WARNING Operating the HeartStart XL or its accessories in conditions outside the environmental specifications can result in device or accessory malfunction WARNING Medical electrical equipment which does not incorporate defibrillator protection should be disconnected during defibrillation WARNING Electric shock hazards exist internally Do not remove assembly screws Refer servicing to qualified personnel 7 20 Specifications Safety Considerations CAUTION This device has not been evaluated for use with electrosurgery equipment NOTE This device and accessories are not intended for home use CAUTION Do not discharge the defibrillator with the paddles shorted together not puncture disassemble or incinerate batteries WARNING Where the integrity of the external protective earth conductor is in doubt the device shall be operated from its internal power source NOTE For operation in the U S the attachment plug must be the proper NEMA type for connection to the alternativ
153. guration Extended Self Test System Log Battery Capacity Test Shift System Check Speed 25 mm s with an accuracy of 5 Amplitude Accuracy 10 or 50 uV whichever is greater Paper Size 50 mm by 30 m 100 ft Noninvasive Pacing Waveform Monophasic Truncated Exponential Current Pulse Amplitude Range 10 mA to 200 mA 5 mA resolution Accuracy 10mA 50mA 5 mA 50mA 200mA 10 Pulse Width 20 ms with accuracy 0 5 ms Rate 30 ppm to 180 ppm 10 ppm increments accuracy 1 5 Modes Demand or Fixed Rate Refractory Period lt 80 ppm 340 msec 10 gt 80 ppm 240 msec 10 SpO Pulse Oximetry Range SpO gt 0 to 100 Pulse Rate 30 to 300 bpm Accuracy with M1191A sensor 1 standard deviation 70 to 100 2 5 M1192A sensor 1 standard deviation 70 to 100 2 5 M1194A sensor 1 standard deviation 70 to 100 4 0 M1131A sensor 1 standard deviation 70 to 100 3 0 M1903B sensor standard deviation 70 to 100 3 0 M1904B sensor standard deviation 70 to 100 3 0 Pulse Rate Accuracy 2 or 1 bpm whichever is greater Wavelength Range 500 to 1000 nm Specifications Specifications Emitted Light Energy lt to 15 mW Display Update Interval lt 60 seconds Resolution 1 Sp0 Alarm Limits Three preset low alarm limits 90 85 and 80 INOP Alerts Triggered by disconnected sensor noisy signal light interfer ence or low signal
154. he 2 latches on the ends of the connector 3 Lower the printer straight down into the instrument 4 Tighten all 4 screws 5 Replace the label a Remove any adhesive residue by rubbing the dry surface with your finger and rolling up the adhesive residue Solvents are ineffective as is scraping with a tool b Clean the surface with isopropyl alcohol Allow it to dry c Peel the backing off the new label Avoid touching the label adhesive d Align one edge of the label with the recess on the sliding door then roll the label down into position e Press firmly all over the label especially the edges to ensure it adheres to the door 6 Replace the paper and close the door After Repair Conduct Performance Verification Testing as described in Performance Veri fication and Safety Tests starting on page 2 1 Removal and Replacement External Assemblies Battery Cover The instructions that follow describe how to remove and replace the battery cover Preparation 1 Remove the battery 2 Remove the paddles from their retainers and unplug them from the unit 3 Turn the unit over Turn the unit upside down with the handle facing you The battery cover is at left side of the bottom surface Removal 1 Remove the battery cover Remove the 7 screws as shown in Figure 4 3 TIP The screws are size coded Remove only the T10 screws 2 Lift the battery cover up Figure 4 3 Removing the Battery Cover
155. he case safely See Opening the Case on page 4 26 3 Disconnect and remove the Control PCA See Control PCA on page 4 38 4 Remove the Shield Plate See Shield Plate on page 4 42 5 Disconnect and remove the Keyscan PCA See Keyscan PCA EL Display on page 4 44 6 Remove the Front Bezel See Bezel Assembly on page 4 59 Removal 1 Remove the Display a Unscrew the two T10 screws in the corners of the Display See Figure 4 32 on page 4 66 b Lift the display off the bezel and set it display side down on a static protected surface 2 Disconnect the two ribbon cables from the display a Unlatch the larger ribbon connector by pressing out and down on the latches at each end of the connector b The smaller connector has no latch Just wiggle it gently from side to side while pulling it out M4735A Service Manual 4 65 Internal Assemblies Top Case 4 66 Replacement 1 Reconnect the two ribbon cables to the Display Latch the larger one in position be sure the smaller one is fully inserted 2 Replace the Display on the Bezel Lay the Display on the Bezel and replace the 2 screws Figure 4 32 Removing the Display Display Assembly Display Ribbon Cables Energy Select Switch Bezel Assembly Shown removed from case After Repair After repairs are complete perform the following steps 1 Replace the Bezel on the case See Bezel Assembly on page 4 59 2 Replace and reconnect the Keys
156. he pads cable to the defibrillation pads The pacing current delivered is reported back to the Control PCA which sends the info to the display and activates any printouts or screen messages as needed Audio Functions The M4735A has two types of audio output tones and voice prompts Both are generated and controlled by the Control PCA which also amplifies the signals and passes them directly to the speaker via a dedicated connector and wire pair Display Functions All display functions are handled by the Control PCA Display formats graphics waveforms numeric values and messages are all generated and formatted by the Control PCA using either data it has or data it receives from other parts of the unit Indicator Functions All front panel LEDs Syne Pacer AC Power and Batt Charge are controlled by the Control PCA The LEDs are connected into the Keyscan PCA via flex circuits they are then routed to the Control PCA via a ribbon cable Key Functions All keys both on the Main Keypad and on the Pacer Keypad connect to the Keyscan PCA via flex circuits Keypresses from all keys are detected and processed by the Keyscan PCA and then passed to the Control PCA via a large ribbon cable The Control PCA then interacts with the other parts of the system as needed to respond to the keypress M4735A Service Manual 6 11 System Functional Descriptions 6 12 Energy Select Switch The Energy Select Switch selects operation in
157. hese replacement connectors come with specific parts as noted Table 5 9 Replacement Connector Assemblies Description Part Number Notes ECG Connector Assembly M4735 69553 Includes connector gasket retainer clip cable and ferrite SpO Connector Assembly M4735 69554 Includes connector gasket flex cable retainer clip Patient Connector Assembly M3500 69562 Includes connector O ring internal cables ECG Out AC Mains Assembly M4735 69563 Includes ECG Out connector AC Mains connector cables Items marked with an asterisk contain Key Components which require tracking See Table 5 18 on page 5 23 5 12 Replacement Parts Mechanical Assemblies Individual Mechanical Parts These mechanical parts are available separately Table 5 10 Individual Mechanical Parts Description Part Number Notes Cable Tie Wrap 1400 0577 Used to secure Lithium Battery to Con trol PCA T10 M3X0 5 screw 0515 0375 Long screw used to connect the paddle wires from the Keyscan PCA to the through case connection to the Paddle Clip T10 nut 0535 003 Used to secure the T10 screw 0515 0375 T10 M3X6 screws 0515 0430 Used for battery cover interior assem blies PCAs Also used outside the case to connect the Paddle Clip to the through case connection to the Keyscan PCA T10 M3X20 screws 0515 1410 Long screws used for securing Parame ter PCA to top case If SpO installed s
158. his description is at the functional block level The information is presented in two ways e PCA Descriptions For each Printed Circuit Assembly PCA a description of the major functions performed on that PCA e System Functional Descriptions For each major system function a description of how the signal is routed through the various PCAs In these descriptions reference will be made to PCAs or features which are optional and may not be present in the unit you have In that case simply ignore those sections The remaining PCA and Functional descriptions will still apply M4735A Service Manual 6 1 PCA Descriptions 6 2 PCA Descriptions The sections following provide descriptions of the functions handled by each PCA Control PCA The Control PCA performs the following functions System level processing System level control and clock functions including a Control of power up and power down sequences b Storage of configuration selections made by the user c Storage of operating software including data for generating display formats and graphics Main interconnection site between the other PCAs User interface functions including a Generation and control of tones and audio prompts b Generation and formatting of real time information for the display and for the printer ec Control of printer functions d Control of indicator LEDs for Syne Pacer AC Power Batt Charge Control of data to a
159. ice Manual 3 9 General Problems Table 3 1 Unit Unresponsive Continued Do the steps below in numerical order Situation Result Possible Causes Corrective Actions 3 Connect AC Power to unit or Unit powers up to some Normal response None Continue troubleshoot fully insert a charged battery working state ing Operational Problems if Turn on power and observe necessary unit s response Unit does not turn on or Corrupt Data Card 1 Turn Energy Select knob to turns itself off OFF position 2 Replace Data Card with a new one if available 3 Turn on unit Unit powers up with audio Short or blown fuse in Isolate the fault by installing prompts tone but no dis the display circuitry known good assemblies in the play following order and replace as needed 1 Display Assembly 2 Control PCA and Display Assembly 3 Keyscan PCA and new Con trol PCA Unit still unresponsive Short or other failure 1 Replace Control PCA if not somewhere in unit already replaced 2 Replace Parameter PCA 3 Replace Printer Assembly 4 If all of the above are unsuccessful return the unit for bench repair 3 10 Troubleshooting General Problems Error Codes The System Log provides error codes in 5 digit hexadecimal format as shown below NOTE Before replacing any parts check to see if the cables and flex circuits are properly connected See Servicing Notes on page 4 1 Confirm
160. ield was damaged earlier replace it now with the one provided with the new Control PCA Remove any remaining pieces of the old shield peel the backing paper from the new shield and press firmly to adhere the shield into place After Repair After the repair is complete perform the following steps 1 Reassemble the case See Closing the Case on page 4 123 2 Restore the system configuration Use the Language Support Tool to set the Control PCA to the correct lan guage to restore the unit s serial number and to select whether SpO hardware is installed or not See The Language Support Tool on page 2 12 3 Restore the customer s configuration Enter Configuration Mode and reload the customer s configuration from the data card or reconfigure the unit See Configuration Mode on page 2 10 4 Test performance Conduct Performance Verification Testing as described in Performance Verification and Safety Tests starting on page 2 1 4 4 Internal Assemblies Top Case Shield Plate The sections below describe how to remove and replace the metal Shield Plate located under the Control PCA This procedure is often needed when removing and replacing other assemblies Preparation Disconnect and remove the Control PCA See Control PCA on page 4 38 Removal a Remove the five screws around the edges of the shield plate See Fig ure 4 22 on page 4 42 b Lift the plate straight up Figure 4 2
161. ilure CHARGE key SER e Trying AED Mode e Power PCA failure e Using Diagnostic Mode to run e Control PCA failure Extended Self Test Defib Meas Test d Controls Test e Keyscan PCA failure eee ce e CHARGE key failure Won t charge in AED Mode e Patient connector or internal wiring Troubleshoot further by failure E Trying Manual Mode P PCA failure ower POA failure e Using Diagnostic Mode to run e Control PCA failure Extended Self Test and Defib Meas Test Won t discharge in Manual Mode using 1 Paddles failure 1 Confirm paddles problem by buttons on paddles discharging using SHOCK key Replace paddles if needed 2 Internal failure in unit 2 Troubleshoot further by e Patient connector or internal wiring e Trying AED Mode failure e Using Diagnostic Mode to run e Power PCA failure Extended Self Test and Defib Meas e Control PCA failure Test Won t discharge in Manual Mode using e Patient connector or internal wiring Troubleshoot further by failure SHOCK key ae Trying AED Mode e Power PCA failure e Using Diagnostic Mode to run e Control PCA failure Extended Self Test Defib Meas Test d Controls Test e Keyscan PCA failure ee age tee e SHOCK key failure 3 24 Troubleshooting Operational Problems Table 3 9 Operational Problems Defibrillation and Synchronized Cardioversion Continued Message or Symptom Charges but disarms when press SHOCK or paddle
162. ing Label Set M4735 69556 Items marked with an asterisk contain Key Components which require tracking See Table 5 18 on page 5 23 5 18 Replacement Parts Supplies amp Accessories Supplies amp Accessories Approved supplies and accessories for the M4735A are listed in To order accessories and supplies e Visit our Medical Systems website at www medical philips com cms and follow the links to Supplies e Inthe US call 800 225 0230 e Outside the US contact your local Philips Medical Systems Sales Office or your authorized Philips Medical Systems Dealer or Distrib utor Table 5 17 Upgrades Supplies and Accessories Part Number Description Upgrades M4738A Pacing Upgrade M4739A SpO Upgrade Defibrillation Pads Pads Cables and Test Load white twist lock connector M3501A Multifunction Adult defib pads AAMI M3502A Multifunction Adult defib pads IEC M3503A Multifunction Pediatric defib pads IEC M3504A Multifunction Pediatric defib pads AAMI M3507A Defib pads cable barrel connector M1781A 50 ohm defibrillator test load barrel connector 05 10200 HeartStart Pads Adapter barrel connector Connects to M3507A pads connector cable M4735A Service Manual 5 19 Supplies amp Accessories Table 5 17 Upgrades Supplies and Accessories Continued Part Number Description Test Load Defibrillation Pa
163. into position c Check to be sure the door moves freely latches securely and springs open when unlatched After Repair Conduct Performance Verification Testing as described in Performance Veri fication and Safety Tests starting on page 2 1 Removal and Replacement External Assemblies Energy Select Knob The following sections describe how to remove and replace the Energy Select Knob Removal Remove the Energy Select Knob Grasp the knob and pull straight out from the Front Bezel TIP The knob will be difficult to remove To get a better grip on the knob try wearing rubber gloves If needed use a pair of pliers with soft material over the jaws Replacement Replace the Energy Select Knob Push the knob onto the shaft Be sure the knob is pressed fully into place Check to be sure it rotates freely and that it points to the correct markings on the Bezel After Repair Conduct Performance Verification Testing as described in Performance Veri fication and Safety Tests starting on page 2 1 M4735A Service Manual 4 19 External Assemblies Paddle Holders The following sections describe how to remove and replace the Paddle Holders Preparation Remove the paddles from the holders Removal 1 Remove the Paddle Holder a Remove the 2 T15 screws NOTE 4 20 These flat head T15 screws are different from the pan head T15 screws used in the rest of the unit Keep them separate and use them on
164. ion Use only 3 wire AC power cords with 3 pronged grounded plugs Keep hands and feet clear of paddle electrode edges Use your thumbs to depress the shock buttons on the paddle handle CAUTION WARNING M4735A Service Manual Conductive parts of electrodes and associated connectors for applied parts including the neutral electrode should not contact other conductive parts including earth Do not allow multifunction defib electrode pads to touch each other or to touch other ECG monitoring electrodes lead wires dressings etc Contact with metal objects may cause electrical arcing and patient skin burns during defibrillation and may divert current away from the heart Safety Considerations WARNING During defibrillation air pockets between the skin and multifunction defib electrode pads may cause patient skin burns To help prevent air pockets make sure the pads completely adhere to the skin Do not use dried out pads do not open pads package until just prior to use WARNING Never touch the patient or any equipment connected to the patient including the bed or gurney during defibrillation WARNING Never operate the HeartStart XL in standing water WARNING Do not immerse or pour fluids on any portion of the HeartStart XL WARNING Do not use the HeartStart XL in a flammable or oxygen rich atmosphere This can cause an explosion hazard WARNING Avoid connecting the patient to several devices at once Leaka
165. it to initialize This may take several seconds The unit is ready to proceed when the screen cursor responds to softkey inputs M4735A Service Manual 2 11 The Language Support Tool Select the desired test or function To select a test press the amp and W softkeys to move up or down the list until the desired test is highlighted Then press the ENTER softkey to start that test Exit Diagnostic Mode To exit Diagnostic Mode turn the unit off The Language Support Tool The Language Support Tool allows field service personnel to perform several tasks 1 to set the language of the Control PCA of the defibrillator 2 to enable the SpO option 3 to program in the serial number These tasks need to be performed under the following circumstances The Control PCA has been replaced The Control PCA contains all the operating software configured for the installed hardware It also contains the unit s serial number which was assigned and programmed during manufacturing The new Control PCA must be programmed to recognize the hardware installed in this unit to contain that unit s serial number and to set the language of the unit The unit has received an upgrade adding the SpO capability The added hardware will not be automatically recognized The Control PCA must be programmed to recognize the new hardware installed The unit s software is being updated Software upgrades are periodically released to resolve
166. king tab to release the connector from the case Remove the AC Mains Connector along with the ECG Out Connec tor and the attached cables Removal and Replacement Internal Assemblies Top Case Figure 4 42 Removing the AC Mains and ECG Out Connectors AC Mains Cable to ECG Out Sync Connector Parameter PCA Connector Replacement 1 Replace the AC Mains Connector a Feed the ECG Out Connector and the attached cables through the hole in the case first then insert the AC Mains connector into the hole last b Press the AC Mains connector into place Be sure all the latches snap into place It should be oriented as shown in Figure 4 42 with the ground lug green wire toward the top of the case M4735A Service Manual 4 89 Internal Assemblies Top Case 2 Replace the ECG Out Sync Connector a Replace the ECG Out Connector in its hole in the case Align one of the flat sides against the ribs in the case NOTE 4 90 One corner of the ECG Out connector is rounded Keep that away from the ribs so the ribs can prevent the connector from rotating in either direction b Replace the washer and nut on the connector and tighten the nut ce Connect the 3 pin connector to the Parameter PCA Route through the hole in the hooded plastic shield if present Be sure it latches in place After Repair After repairs are complete perform the following steps 1 If your device has a hooded plastic shiel
167. l 1 Disconnect the Speaker Disconnect the speaker from the Control PCA Refer to Figure 4 20 on page 4 39 to identify the speaker connector 2 Remove the speaker a Remove the two screws and clamps from the speaker See Figure 4 41 b Peel up the tape holding the wires in place Lift the speaker and its wires out of the case Figure 4 41 Removing the Speaker gt Clamp Speaker 2 Total 4 86 Removal and Replacement Internal Assemblies Top Case Replacement 1 Replace the Speaker a Place the new speaker into position in the case b Install both clamps and both screws See Figure 4 41 on page 4 86 c Lay the wires in the same position in the case as were the original wires and secure with the original tape or with other plastic electrical tape 2 Connect the Speaker Connect the speaker to the Control PCA Refer to Figure 4 20 on page 4 39 After Repair After repairs are complete perform the following steps 1 Reassemble the case See Closing the Case on page 4 123 2 Restore the customer s configuration Enter Configuration Mode and reload the customer s configuration from the data card or reconfigure the unit as needed See Configuration Mode on page 2 10 3 Test performance Conduct Performance Verification Testing as described in Performance Verification and Safety Tests starting on page 2 1 M4735A Service Manual 4 87 Internal Assemblies Top Case
168. l delivered energy 7 Impedance 42 to 57 ohms Peak Current Ignore Derived from same measurements as delivered energy and impedance Defib Errors Not recorded failure if any reported Shock Counter Disregard M4735A Service Manual 2 39 Performance Verification Tests Defibrillator Test Battery Power At 200 J These instructions describe how to test the defibrillation function when powered only by a fully charged battery with no AC power connected If all results are as described the unit passes the test Return to the main Diagnostic Test menu by pressing MAIN If there is any failure begin troubleshooting and repairing the unit as needed See Troubleshooting on page 3 1 and Table 3 9 Operational Problems Defibrillation and Synchronized Cardioversion on page 3 24 1 Set up the test a Turn the defibrillator off Insert the battery and disconnect the AC Power cord b Connect the defibrillator analyzer to the pads cable Set the analyzer to measure delivered energy If needed reset the analyzer s display to read 0 c Turn the defibrillator on From the Diagnostic Menu select the Defib Meas Test and press ENTER 2 Deliver a 200J shock a Use the Energy Select control to select 200J b Press CHARGE to charge the defibrillator e Press SHOCK 3 Check the analyzer readings Read the delivered energy indicated by the defibrillator analyzer It should be 200J 15 30J 4 Check the values
169. lace the battery cover See Battery Cover on page 4 11 After Repair Conduct Performance Verification Testing as described in Performance Veri fication and Safety Tests starting on page 2 1 Removal and Replacement M4735A Service Manual External Assemblies Data Card Door The following sections describe how to remove and replace the Data Card Door Removal 1 Open the door This will expose the spring loaded shaft on which the door pivots 2 Compress the shaft a Using a small flat bladed screwdriver catch the left end of the pivot shaft not the left end of the spring and slide it toward the center compressing the spring b When the spring is compressed enough the pivot shaft will pop easily out of its hole in the bottom case 3 Remove the door Figure 4 7 Removing the Data Card Door Data Card Door Pivot Shaft Spring Left end of Pivot Shaft External Assemblies Replacement 1 Check the mating holes Check to be sure the pivot holes in the case have not been damaged If they have been the Bottom Case Assembly must be replaced 2 Insert the door NOTE 4 18 The new door comes complete with the black latch the pivot shaft and the spring already installed in the door a Insert the right end of the pivot shaft into its hole in the case b Push in on the left end of the shaft to compress the spring then slide the left end into place Be sure the shaft snaps
170. lator capacitor see Defibrillator Capacitor on page 4 106 4 121 Internal Assemblies Bottom Case Power PCA and shield see Power PCA on page 4 108 Power Supply see Power Supply on page 4 112 Battery CO ab oy i All screws New parts to be installed provided with bottom case The Replacement Bottom Case Assembly comes with the following new components which must be installed in the field e Battery cover e Large nut for Patient Connector New parts to be installed must be ordered separately In addition the following parts cannot be reused from the old case and must be ordered separately and installed into the new bottom case e Case Label Set These are available in all the supported languages See the Replacement Parts chapter 5 11 to select the correct language e Primary Label When replacing the bottom case the Primary Label containing the unit s serial number must also be replaced Be prepared to provide information identifying the unit when ordering the bottom case NOTE 4 122 To enable device tracking as mandated by US Federal law the Primary Label must be applied before placing the unit back into service After Repair After repairs are complete perform the following steps 1 Reassemble the case See Closing the Case on page 4 123 2 Restore the customer s configuration Enter Configuration Mode and reload the customer s configuration from the data ca
171. lay on page 3 28 e Table 3 13 Operational Problems Audio Tones Voice Prompts on page 3 29 e Table 3 14 Operational Problems Controls on page 3 30 To test the Controls 1 Access the Diagnostic Test menu See Diagnostic Mode on page 2 11 2 Start the Controls Test Select Controls Test and press ENTER The screen will display a map of the front panel keys and Energy Select switch 3 Test the softkeys Press each of the numbered softkeys in turn See Figure 2 1 on page 2 11 for numbering of softkeys Each softkey number on the display should be highlighted each time that key is pressed Don t press Softkey 4 MAIN at this time This will return you to the Main diagnostic mode menu 4 Test the ECG and Audio keys Test each of the ECG Size and Volume keys See Figure 2 1 on page 2 11 for location of these keys Each key should show a highlighted F plus when the up arrow on the key is pressed and show a highlighted minus when the down arrow is pressed M4735A Service Manual 2 27 Performance Verification Tests 2 28 Test the printer keys Test each of the printer control keys Strip Summary and Mark Each corresponding label on the display should be highlighted each time that key is pressed Test the Pacing keys Test each of the Pacing keys The displayed labels for Pacer Start Stop and Mode should be highlighted each time that key is pressed The displayed labels fo
172. lt will be Not Tested The Front End FE test checks that the main processor is communicating with the Digital Signal Processor DSP and that the DSP is communicating with both ECG front ends pads and leads It does not test the quality of the ECG measurement e SP02 if SpO option installed This tests that communication with the SpO PCA is working It does this by reading the software revision back from the PCA It does not test the quality of the SpO measurement e Pacer if Pacing option installed The Pacer test has the Pacer deliver current into the test box and measures that the current delivered was what was expected The pads cable and test load must be connected for the test to run otherwise the test result will be Not Tested 2 26 Performance Verification and Safety Tests Performance Verification Tests User Interface Tests The User Interface Tests exercise the functions that interact with the user Each of the User Interface tests assumes the unit and the simulator are still set up as they were at the end of the previous User Interface check If all results are as described the unit passes that test Return to the main Diagnostic Test menu by pressing MAIN If there is any failure begin troubleshooting and repairing the unit as needed See Troubleshooting on page 3 1 and the following specific tables e Table 3 11 Operational Problems Printer on page 3 27 e Table 3 12 Operational Problems Disp
173. ly for the Paddle Holder b Slide the Paddle Holder out from under the metal clip 2 Remove the clip a Remove the T10 nut b Remove the clip Figure 4 8 Removing the Paddle Holder Paddle Holder Flat Head Metal Clip Flat Head Screws Screws Removal and Replacement M4735A Service Manual External Assemblies Figure 4 9 Removing the Clip Metal Clip Replacement 1 Replace the clip a Place the clip in its slot in the case Use the new one that came with the replacement Paddle Holder b Replace the T10 nut and tighten securely 2 Replace the Paddle Holder a Slide the Paddle Holder into position under the clip b Replace the 2 T15 screws and tighten securely After Repair Conduct Performance Verification Testing as described in Performance Verification and Safety Tests starting on page 2 1 4 21 External Assemblies 4 22 Labels The labels used on the M4735A are divided into 4 groups e Instruction Label Set e Case Label Set e Branding Label Set e Speaker Label Each set of labels is one sheet containing all the labels in that set The labels are adhesive backed and replacing a label consists of peeling up the old cleaning the surface and sticking down the new See Removing and Replacing Labels on page 4 25 Label Descriptions The following sections describe each of the label sets in more detail Instruction Label Set The Instruction Label Set includes one lab
174. ment M4735A Service Manual Internal Assemblies Top Case Replacement Replace the IrDA break off PCA 1 If the IrDA PCA was removed replace it now a b c Connect the cable to the IrDA PCA Place the IrDA PCA in position inside the top case Replace the two screws Connect the three individual wires to the Keyscan PCA a Connect the longest wire to the spade connector at the lower left edge of the PCA This wire has spade receptacles on both ends Connect the other two wires to the spade connectors at opposite side edges of the PCA on either end of the power resistors These wires have ring terminals on their other ends Install the Keyscan PCA a Cc Align the bottom edge of the PCA with the mating slots in the case Note that there is also a slot in the PCA which must line up with a rib on the case See Figure 4 24 As you lay the PCA against the threaded standoffs guide the two dis play ribbon cables through the window in the Keyscan PCA Replace the two T10 screws and tighten Reconnect the Keyscan PCA a Connect the two paddle wires to the paddles pockets Replace the two T10 screws and tighten Connect the two display ribbon cables Latch the larger one in posi tion Be sure the smaller one is fully inserted in its connection If you removed the Energy Select Switch replace it and connect it to the Keyscan PCA Be sure the connector latches into position securely Conn
175. n Diagnostic Test menu Verify the print speed Measure between the long tick marks B in Figure 2 4 to verify paper speed Distance should be 25mm 5 1 25 mm Check the printer status detection a Open the printer door and press the Strip key The unit should sound a series of 3 tones indicating a printer problem Take out the paper close the door and press the Strip key The unit should sound a series of 3 tones indicating a printer problem Performance Verification and Safety Tests Performance Verification Tests LLL OC oo 9944449000664400000000600000064 4409440404040000000600000000006 SA 04O00540045400600060006000004 Diamonds 4 144400440050056005600000004 9444440406644400066000006000664 14 5404505064050064050000000004 Figure 2 4 Printer Test Output Diagonal lines Vertical bars resstes tees nesses TA PA a a Pa Pa a ea Pat a a PA e a e Pa nd M4735A Service Manual 2 31 Performance Verification Tests ECG Tests These instructions describe how to test the ECG functions Each of the ECG tests assumes the unit and the simulator are still set up as they were at the end of the previous ECG test If all results are as described the unit passes that portion of the test Return to the main Diagnostic Test menu by pres
176. n components and connections exposed during unit disassembly Use extreme caution while the unit cover is removed CAUTION Be sure to work in a static free environment Use an electrostatic wrist band The work surface and area surrounding it must be static free Use an antistatic pad which is grounded per the manufacturer s instructions 1 Eject the Data Card Remove the Data Card by pushing its Eject button and pulling the card out CAUTION 4 25 Be sure the Eject button is pushed in fully If it is left partially extended it can catch on the bottom case and break off 2 Remove the paddles Disconnect the paddles from the Patient Connector Snap both paddles out of their retainers and lay them aside 3 Turn the unit over Turn the M4735A upside down display facing down with the handle closest to you 4 Remove the Battery Cover See Battery Cover on page 4 11 5 Remove the case screws a Loosen the four T15 screws in the bottom section of the case See Figure 4 15 Do not remove the two screws that attach the Power Supply to the case b Loosen the six T15 screws in the handle Leave the two halves of the case together TIP To avoid losing any screws apply tape over the screw holes before turning the unit rightside up c Turn the unit over rightside up so the display is facing up Keep the handle closest to you The case screws will fall out of their holes as you do this
177. n in Figure 4 31 b Fit the switch into place between the square ribs on the Bezel Be sure the switch is fully bottomed against the Bezel c Replace the lockwasher and nut on the shaft Tighten the nut securely d Plug the connector into the Keyscan PCA Be sure it latches After Repair After this repair is complete perform the following steps 1 Replace the Energy Select Knob Push the knob onto the shaft Be sure the knob is pressed fully into place 2 Reassemble the case See Closing the Case on page 4 123 3 Restore the customer s configuration Enter Configuration Mode and reload the customer s configuration from the data card or reconfigure the unit as needed See Configuration Mode on page 2 10 4 Test performance Conduct Performance Verification Testing as described in Performance Verification and Safety Tests starting on page 2 1 pao Removal and Replacement Internal Assemblies Top Case Display Assembly EL Display The following sections describe how to remove and replace the Display Assembly for devices with an EL Display See Identifying the Display Type on page 5 7 for information on what type of Display the device has The Display Assembly is mounted to the back of the Bezel Preparation 1 Save the configuration If possible save the customer s configuration onto a Data Card or print the configuration so the configuration can be restored after the repair is complete 2 Open t
178. n one or more Key Components Key Components require detailed tracking by recording the key component part number and either the key component s date code or its serial number This data must be recorded for both the failed assembly and the replacement assembly Philips Medical Systems service personnel must record this information on the Customer Service Order CSO The Key Components that are part of the replacement assemblies are listed in Table 5 18 on page 5 23 5 2 Replacement Parts M4735A Service Manual Special Tools The following special tools are available for purchase from Philips Medical Systems To order these special tools contact Philips Medical Systems as described in Ordering Replacement Parts on page 5 1 Special Tools Torx driver kit Tool 5181 1933 Part Number High voltage discharge tool M2475 69572 Language Support Tool See Table 5 2 on page 5 6 5 3 M4735A Unit Exchange Program M4735A Unit Exchange Program US and Canada Only For customers taking advantage of the M4735A Unit Exchange program following are notes on logistics and a list of the available Exchange Units Logistics Philips ships a replacement unit to the customer This unit does not include paddles cables sensors accessories battery data card or consumables Customer takes the exchange unit out of the box tests it and puts it into service Customer removes all paddles
179. n or function see Operational Problems on page 3 20 Unit Unresponsive General Problems Isolate the fault by following the steps in Table 3 1 in the order listed NOTE Table 3 1 Unit Unresponsive Before replacing any parts check to see if the cables and flex circuits are properly connected See Servicing Notes on page 4 1 Do the steps below in numerical order Situation Result Possible Causes Corrective Actions 1 Connect AC Power ONLY to unit AC Power indicator turns GREEN AC Power indicator stays OFF AC Power indicator remains off after checking AC outlet and power cord connections Normal response No power in AC outlet Power cord defective One or more of the fol lowing may have failed Power supply Power PCA Control PCA None Proceed to step 2 1 Restore power 2 Replace power cord Isolate the fault by installing known good assemblies in the following order and replace as needed 1 Power supply 2 Power PCA 3 Control PCA leave replace ment power PCA in unit 2 Insert fully charged battery Disconnect AC Power Turn on power and observe unit s response Unit powers up to some working state Unit unresponsive Normal response Main Fuse open Open in battery wiring None Proceed to step 3 Replace Main Fuse Check replace Battery PCA and all of its connections M4735A Serv
180. n page 4 1 Table 3 13 Operational Problems Audio Tones Voice Prompts Symptom No audio at all Possible Causes Speaker failure Control PCA failure Suggested solution Replace Speaker Assembly Replace Control PCA Audio is distorted Damage to speaker label Speaker failure Control PCA failure Replace speaker label Replace Speaker Assembly Replace Control PCA Buzzing noise when audio active Damage to speaker label Debris between speaker and speaker label Speaker hardware loose Replace speaker label Remove speaker label clean out debris install new speaker label Tighten hardware as needed Speaker failure Replace Speaker Assembly Control PCA failure Replace Control PCA Tones present but no voice prompt in Control PCA failure Replace Control PCA AED Mode Voice prompt present but no tones Control PCA failure Replace Control PCA M4735A Service Manual 3 29 Operational Problems Controls The following table covers problems that might arise with the controls NOTE Before replacing any parts check to see if the cables and flex circuits are properly connected See Servicing Notes on page 4 1 Table 3 14 Operational Problems Controls Symptom Possible Causes One of the keys doesn t respond cor e Key failure rectly e Keyscan PCA failure e Control PCA failure More than one of the keys or
181. n their holes and tighten snugly 7 Restore the customer s configuration If you have not already done so enter Configuration Mode and reload the customer s configuration from the data card or reconfigure the unit as needed See Configuration Mode on page 2 10 8 Test performance Conduct Performance Verification Testing as described in Performance Verification and Safety Tests starting on page 2 1 4 124 Removal and Replacement 5 Replacement Parts Overview This chapter provides the part numbers for all replaceable assemblies and sub assemblies Chapter Contents The major sections of this chapter are as follows Section Page Ordering Replacement Parts 5 1 Ordering Supplies and Accessories 5 1 Key Components 5 2 Special Tools 5 3 M4735A Unit Exchange Program 5 4 Replacement Parts Tables 5 5 Ordering Replacement Parts To order replacement parts e Inthe US call 888 561 5018 e Outside the US contact your local Philips Medical Systems office Ordering Supplies and Accessories To order accessories and supplies e Inthe US visit our Medical Systems website at www medical phil ips com cms and follow the links to Supplies e Inthe US call 800 225 0230 e Outside the US contact your local Philips Medical Systems Sales Office or your authorized Philips Medical Systems Dealer or Distrib utor 5 1 Overview Key Components Replacement assemblies marked with an asterisk contai
182. nal Paddles Pads Safety test passes spaces For example DA x DB x D x DA p DB p D p V x F x X x U x E x P x V p F p X p U p E p P p Note When recording test results separate results within a test by slashes separate tests by a semicolon and use no empty S1 P 125 800 S3 P 9 49 49 10 50 50 100 499 4750 9 49 83 Performance Verification and Safety Tests Test Equipment Test Equipment Table 2 2 lists the equipment needed to perform the Performance Verification tests and provides specifications for commercially available analyzers and simulators Test equipment is called out within each test procedure when needed In addition A 50 ohm test load is available M1781A or M3725A Table 2 2 Equipment List Equipment Test Specifications ECG Simulator Calibrated Leads ECG simulator e Amplitude accuracy 2 e Rate accuracy 2 Calibrated Paddles ECG simulator e Amplitude accuracy 2 e Rate accuracy 2 Defibrillator Analyzer Waveform compatibility Meets all specs below using biphasic trun cated exponential waveform Load resistance 50 Q 1 non inductive Maximum energy 2 200 joules Maximum voltage 2 2500 V Maximum current 250 A Measurement accuracy e gt 20 joules lt 2 of reading e lt 20 joules lt 0 4 joules Cardioversion measurement range 150 to 150 ms Pacer tester Load impedance lt 400 Q Current measurement accuracy e 1
183. nd Speaker Label Locations Energy Select Q 70 190 0 1 Speaker Label Philips Label HeartStart XL Label Speaker Label Set The Speaker Label covers the speaker grille and is designed to provide good sound transmission while still protecting the speaker The Label contains a raised circular area over the speaker See Figure 4 12 for location 4 24 Removal and Replacement M4735A Service Manual External Assemblies Removing and Replacing Labels The following sections describe how to remove and replace any of the labels Removal 1 Start at one corner Using a sharp tool such as a utility knife pick up one corner of the label 2 Peel up the label Peel the label up by pulling slowly and evenly on the loosened corner See Figure 4 13 Figure 4 13 Removing the Speaker Label Energy Select Knob Speaker Label Replacement 1 Clean the surface a Remove any adhesive residue by rubbing the dry surface with your finger and rolling up the adhesive residue Solvents are ineffective as is scraping with a tool b Clean the surface with isopropyl alcohol Allow it to dry 2 Peel off the backing Peel the backing off the new label Avoid touching the label adhesive 3 Apply the label a Align one edge of the label with the recess on the case then roll the label down slowly into position b Press firmly all over the label especially the edges to ensure it adheres to the case
184. nd from the Data Card Control of defibrillation functions on the Power PCA including a Initiating a capacitor charge sequence b Monitoring charge on capacitor c Initiating a shock delivery sequence Control of pacing functions on the Power PCA including a Starting stopping pacing b Controlling Rate and Output as selected by user and monitor ing pacing current delivered Control of the ECG front ends on the Parameter PCA Leads ECG and Power PCA Paddles Pads ECG Generation and regulation of the 5 volt logic power supply Theory of Operation PCA Descriptions Power PCA The Power PCA performs the following functions e Analog front end for ECG from pads e Impedance measurement for Paddle Contact Indicator PCI function e Generation and control of pacing waveforms as directed by Control PCA e Control of defibrillator functions as directed by the Control PCA a Charging the capacitor to the correct energy level b Delivering the shock and controlling the waveform c Disarming discharging the capacitor Parameter PCA The Parameter PCA performs the following functions e Interconnection site for ECG leads cable ECG out cable and SpO module e ECG analog front end for ECG from 3 and 5 lead cables e SpO on off logic and patient isolation Keyscan PCA The Keyscan PCA performs the following functions e Interconnection site for a All front panel keys b Energy Select Switch c All fr
185. nd pads are within their expiration date and appear usable Packaging is unopened and shows no tears or punctures No corrosion is visible on connector sockets electrodes or pads 2 Examine the entire unit a Inspect the unit on all sides looking for e Signs of mechanical damage to the case membrane switches speaker cover display window or printer e Loose or missing hardware e Evidence of liquid spill Check inside the printer bucket and clean out any accumulation using gloves and an approved cleaner Also check for residue in the connectors at the back of the unit ECG SpO ECG Out Sync e Residue on the thermal printhead e Damage to connector pins or corrosion on the pins or debris in the connector 2 15 Performance Verification Tests 2 16 Pass Inspect the paddles power cord battery cables and sensors for signs of the following Wear or damage to paddles cables and adapters Wear or damage to patient cables and associated strain reliefs Printer roller wear Wear or damage to power cord and associated strain relief Corrosion on connector pins printer parts or battery contacts Only normal wear no damage serious enough to inhibit performance No corrosion visible Performance Verification and Safety Tests M4735A Service Manual Performance Verification Tests Functional Checks The functional checks below exercise the basic functions of the defibrillator monitor They
186. nents Page Key Components 5 23 M4735A Service Manual 5 5 Electrical Assemblies Electrical Assemblies The following tables provide information about replacement electrical assemblies Control PCA The replacement Control PCA includes the Lithium backup battery the battery s cable tie wrap and the black plastic shield for the Data Card receptacle entrance All Control PCAs are American English part number M4735 68100 Use the appropriate Language Support tool to set the Control PCA to the correct language and software release If you are repairing a device install the same software release that is already on the device However if you are installing a new SpO PCA you must install the current software release See SpO2 PCA on page 4 78 for more information NOTE 5 6 The Control PCA is a key component which requires tracking See Table 5 18 on page 5 23 Table 5 2 Language Support Tool Language Part Number American English M4735 87900 French M4735 87901 German M4735 87902 Dutch M4735 87903 Spanish M4735 87904 Italian M4735 87905 Swedish M4735 87906 Japanese M4735 87907 Norwegian M4735 87908 Finnish M4735 87909 Chinese M4735 87911 Portuguese M4735 87913 Russian M4735 87914 Polish M4735 87919 British English M4735 87930 Australian English M4735 87940 8 MB card for SoftServer use M3510 87890 Replacement Parts Electrical
187. ng option is installed If all results are as described the unit passes the test Return to the main Diagnostic Test menu by pressing MAIN If there is any failure begin troubleshooting and repairing the unit as needed See Troubleshooting on page 3 1 and Table 3 10 Operational Problems Pacing on page 3 26 1 Set up the test a Disconnect the paddles and connect the pads cable Connect the pads cable to the Pacer tester b From the Diagnostic Menu select Pacer Test and press ENTER The display should look similar to Figure 2 6 Figure 2 6 Pacer Test Display PACER TEST Pacer Status Selected Rate Selected Output Delivered mA 2 Begin Pacing Press SS P ill ch i ing wi b Press acer Status will change to Pacing and pacing will begin at the default settings of 70 beats per minute bpm and 30 mA M4735A Service Manual Performance Verification Tests 2 35 Check the default output a b The Pacer should be delivering a current of 30mA 4 tSmA The display on the M4735A should read the delivered current as mea sured by the Pacer tester 5 mA Test the maximum output Using the button increase the rate to 180 bpm Using the button increase the output to 200 mA The Pacer should be delivering a current of 200mA 4 The display on the M4735A should read the delivered current as mea b Cc d sured by the Pacer tester 4 End the test Turn
188. nment maani es Test Level Level Guidance Radiated RF 10 V m 10 V m IEC 61000 4 3 80 MHz to 2 5 80 MHz to 800 MHz GHz d Lose 800 MH 2 5 GH d 2 3VP one 7 where P is the maximum output power rat ing of the transmitter in watts W accord ing to the transmitter s specified output power and d is the recommended separation distance in meters m gt Field strengths from fixed RF transmitters as determined by an electromagnetic site survey should be less than the compliance level in each frequency range 4 Interference may occur in the vicinity of equipment marked with the following sym bol K At 80 MHz and 800 MHz the higher frequency range applies These guidelines my not apply in all situations Electromagnetic propagation is affected by absorption and reflection from structures objects and people The ISM industrial scientific and medical bands between 150 kHz and 80 MHz are 6 765 MHz to 6 795 MHz 13 553 MHz to 13 567 MHz and 26 957 MHz to 27 283 MHz and 40 66 MHz to 40 70 MHz gt The compliance levels in the ISM frequency bands between 150 kHz and 80 MHz and in the frequency range 80 MHz to 2 5 GHz are intended to decrease the likelihood that mobile portable communications equipment could cause interference if it is inadvert ently brought into patient areas For this reason an additional factor of 10 3 is used in calculating the recommended separation distance for transmitters in these
189. nnection between pads and adapter cable also connection to unit Paddles Check connection to unit Leads Check connections between leads and trunk cable also connection to unit Pads Replace Patient Connector Paddles Replace Patient Connector Leads Replace ECG Connector Pads Replace Power PCA Leads Replace Parameter PCA Replace Control PCA 3 20 Troubleshooting Operational Problems Table 3 7 Operational Problems ECG Monitoring Pads Paddles or Leads Continued Symptom Noisy trace intermittent bursts of noise or random spikes Possible Cause Nearby source of time varying interference such as radio transmitter paging walkie talkies or X Ray system Bad connection somewhere in signal path Failure in connector Failure in ECG front end Failure in signal processing circuits Suggested Solution Try moving cable leads try relocating the unit Pads Check connection between pads and adapter cable also connection to unit Paddles Check connection to unit Leads Check connections between leads and trunk cable also connection to unit Pads Replace Patient Connector Paddles Replace Patient Connector Leads Replace ECG Connector Pads Replace Power PCA Leads Replace Parameter PCA Replace Control PCA Noisy trace low frequency periodic More than one instrument connected to the patient and active Only have one active instrument on the
190. nstructions on cleaning the printer printhead are duplicated here Instructions on running the Battery Capacity Test are duplicated on page 2 46 Cleaning the Printer Printhead If the traces or characters in the printout are faint or vary in density dark ness clean the printhead to remove any buildup of paper residue 1 Open the printer and remove the paper a Slide the printer door to the right until the paper roller pops up b Pull up on the plastic tab to remove the roll of paper 2 Clean the printhead Clean the printhead surface above the brush with a cotton swab dipped in isopropyl alcohol Take care to not leave cotton fibers behind 3 Replace the paper 4 Close the printer door Removal and Replacement External Assemblies Printer Assembly The following steps describe how to remove and replace the printer assembly Preparation 1 Discharge the power supply capacitors a Disconnect the AC power and remove the battery b Turn the Energy Select Switch to either AED On or Manual On c Wait at least one full minute before proceeding This will allow enough time for the capacitors to discharge 2 Open the printer and remove the paper a Open the printer by moving the sliding door in the direction of the arrow and lifting up the platen and roller b Pull up on the plastic tab and lift the paper out of the printer Removal 1 Loosen the 2 screws under the platen Loosen the 2 T10 screws now visible
191. om the Power PCA press on the latch to release c Disconnect the 4 pin connector from the Power PCA press on the latch to release 4200 Removal and Replacement Internal Assemblies Bottom Case Figure 4 52 Power Supply Connections 4 Pin Connector to 2 Pin Connector to Power PCA Battery PCA 6 Pin Connector to Power PCA 3 Lift the Defibrillator Capacitor out of the way Lift up the Defibrillator Capacitor together with its foam base Lift straight up then turn the capacitor to the right and rest it on the Power PCA See Figure 4 49 on page 4 107 M4735A Service Manual 4 113 Internal Assemblies Bottom Case 4 Remove the Power Supply Tilt the top of the Power Supply in toward the Power PCA Guide the Power Supply out from under the end of the Power PCA then lift it out of the case 5 Remove the Power Supply insulator if present Figure 4 53 Removing the Power Supply Insulator Power Supply Insulator 44 Removal and Replacement Internal Assemblies Bottom Case Figure 4 54 Removing the Power Supply Power Defibrillator Supply Capacitor Work Surface Replacement 1 Replace the Power Supply a Place the Power Supply insulator inside the Power Module b Guide the bottom of the Power Supply into place under the Power PCA aligning the notch in the plastic frame with the tab on the PCA c Press the Power Module down into position Be sure it aligns correctly with the raised s
192. omagnetic Interference The M4735A HeartStart XL Defibrillator Monitor and associated accessories may be susceptible to interference from other RF energy sources and continu ous repetitive power line bursts Examples of other sources of RF interfer ence are medical devices cellular products information technology equipment and radio television transmission Should interference be encoun tered as demonstrated by artifact on the ECG or dramatic variations in SpO gt values attempt to locate the source Assess e Is the interference intermittent or constant e Does the interference occur only in certain locations e Does the interference occur only when in close proximity to certain medical devices e Does the SpO value change dramatically when the AC line cord is unplugged Once the source is located attempt to attenuate the EMC coupling path by distancing the defibrillator from the source as much as possible If assistance is needed call your local service representative Specifications WARNING M4735A Service Manual Electromagnetic Compatibility Restrictions for Use Artifact on the ECG caused by electromagnetic interference should be evalu ated by a physician or physician authorized personnel to determine if it will negatively impact patient diagnosis or treatment Immunity Level Devices with Serial Numbers US001XXXXX The EMC standards state that manufacturers of patient coupled equipment must specify immunit
193. on trol PCA via a large ribbon cable The keypress is then detected and processed by the Control PCA M4735A Service Manual 6 9 System Functional Descriptions e The second means of initiating a shock is by simultaneously pressing the SHOCK switches on both the Sternum and Apex paddles These keypresses are transferred from the keys to the Power PCA via the paddles cable The Power PCA transfers the keypress to the Control PCA via a large ribbon cable The keypress is then detected and processed by the Control PCA In either case the Control PCA directs the Power PCA to deliver the shock Patient resistance is derived from the current and voltage delivered during the initial portions of the waveform and the biphasic waveform is then adjusted as needed to deliver the correct energy The Power PCA will abort delivery of the shock if any of the following occurs e During the impedance measurement the impedance is outside of operating limits too high or too low e At any time during delivery of the shock it detects an open circuit voltage too high for that point in the waveform or a short circuit current too high for that point in the waveform Should any of these conditions be detected the Power PCA terminates delivery of the waveform and disarms the capacitor The problem is reported to the Control PCA which displays and or prints the appropriate messages Another safety feature is the presence of an identification resist
194. ont panel LEDs Syne Pacer AC Power Batt Charge d IrDA interface e EL display data and control signals e Detecting and initial processing of front panel key presses e Pass through of Energy Select Switch signals e Interface for IrDA module used only in manufacturing at this time e Pass through of EL display data and control signals e Internal test load for paddle discharge M4735A Service Manual 6 3 PCA Descriptions 6 4 SpO PCA The SpO PCA serves as the interface to the SpO sensor including e Generation and control of voltages to drive the LEDs in the sensor e Receiving and processing the signals from the SpO sensor Battery PCA The Battery PCA provides the contacts with which the battery mates It also has the main fuse and it provides the function of detecting whether the installed battery is an M3516A battery or not see Contacts Battery Type on page 6 12 It also detects the temperature of the battery Battery The M3516A battery differs from similar batteries in that it is capable of pro viding much higher current without causing an internal protection device to open and disconnect the battery Power Supply The Power Supply provides regulated DC power to the unit and charges the battery Printer The printer provides hard copy output of text waveforms event data etc It senses when the paper is out or the door is left open Theory of Operation System Level Interconnections
195. or 5 12 5 25 AC Mains 4 88 ECG 4 81 4 88 4 91 Patient 4 118 SpO2 4 84 Control PCA 6 2 charging 6 9 replacement 4 38 5 6 5 23 signal processing 6 7 Controls 3 30 Index D Data Card 2 15 6 16 Data Card Disabled 3 13 Data Card Full 3 17 Data Card Interrupted 3 17 Data Card Not In Service 3 17 Door 4 17 5 12 Event Summary 7 7 Incompatible Data Card 3 17 No Data Card Present 3 17 operational problems 3 32 ordering 5 22 test 2 25 Defibrillator 1 2 AC power test 2 6 2 39 battery test 2 6 2 40 capacitor 4 32 4 106 5 8 5 23 charging 1 2 3 24 6 9 Defib Disarmed 3 16 Defib Failure 3 14 3 25 Defib Meas test 3 26 dimensions and weight 7 7 Disarm Test 2 6 2 41 discharging 4 32 disposal 4 4 Extended Self Test 2 4 2 26 3 19 operational problems 3 24 repair philosophy 1 3 specifications 7 1 See also Paddles See also Pads Diagnostic test 2 6 2 21 AC Power 2 39 Battery Power 2 40 Data Card 3 32 Defib Meas 3 26 Defibrillator Disarm Test 2 41 Diagnostic Mode 2 11 ECG test 2 32 3 23 Extended Self Test 2 4 2 24 3 19 Pacing test 2 5 2 26 2 37 System Log 2 22 User Interface Tests 2 5 2 27 Disarm Pathway 4 32 Display 6 11 operational problems 3 28 removing and replacing 4 65 5 7 5 23 specifications 7 4 testing 2 29 DSP test 2 33 E Earth leakage 2 42 ECG cables ordering 5 21 ECG monitor 6 7 amplifier tests 2 34 connector 4 81
196. or in the pads and paddles cables If the unit does not sense that resistance it gives a Cable Off message and will not charge the capacitor Delivering synchronized cardioversion Synchronized cardioversion operates the same as delivering a shock except that the shock must be synchronized to the R wave of the ECG The Control PCA is responsible for detecting the R wave and placing markers on the printed strip and on the display to indicate the timing of the proposed cardioversion shock A synchronized shock can be delivered in either of two ways e First when using pads by pressing and holding key 3 SHOCK until the next time an R wave is detected e Second by simultaneously pressing and holding the SHOCK switches on both the Sternum and Apex paddles until the next time an R wave is detected When both events occur either type of key press and detection of an R wave the Control PCA directs the Power PCA to deliver the shock 6 10 Theory of Operation System Functional Descriptions Pacing Functions Pacing is initiated and controlled by pressing front panel keys These key presses are transferred from the keys to the Keyscan PCA via a flex circuit The key presses are detected and processed by the Keyscan PCA and then passed to the Control PCA via a large ribbon cable The Control PCA directs the Power PCA to deliver the pacing pulses at the rate and output current selected by the user The pacing pulses are delivered via t
197. or signals coming in on the paddles or pads cable and one for signals coming in on the 3 or 5 lead ECG cable ECG Paddles Pads The ECG signal picked up by the paddles or disposable defibrillation pads is carried by the cable to the pads paddles connector and then to the Power PCA There it is amplified filtered digitized and passed across a patient isolation barrier before being passed to the Control PCA via a large ribbon cable The Control PCA then performs digital signal processing on the ECG data and is responsible for e ECG waveform analysis and Shock Advisory in AED Mode e Formatting and presenting the ECG to the display and to the printer e Counting heart rate and generating heart rate alarms e Reporting on the status of the patient connection ECG 3 or 5 lead cable The ECG signal picked up by the ECG monitoring electrodes is carried by the ECG cable to the ECG connector and then to the Parameter PCA There it is amplified filtered and digitized before being passed to the Control PCA via a large ribbon cable The Control PCA then performs digital signal processing on the ECG data and is responsible for e Formatting and presenting the ECG to the display and to the printer e Counting heart rate and generating heart rate alarms e Reporting on the status of the patient connection and alerting the user to measurement problems Patient impedance functions The M4735A measures patient impedance in two
198. or still responds with No Shock Advised Check Shock Advisory with VF a Set the simulator to VF Ventricular Fibrillation and press ANALYZE b Verify that the defibrillator responds with Shock Advised and charges up to 150J If the unit is configured to do so verify that it automati cally prints a strip of the event Do not discharge the stored energy unless you are certain the simulator contains a 50 ohm test load c Ifthe simulator contains a 50 ohm test load discharge the stored energy into the test load If it does not or you are not sure wait until the defibrillator reports Shock cancelled before proceeding Performance Verification and Safety Tests Performance Verification Tests Synchronized Cardioversion Functional Check This section describes how to check the synchronized cardioversion function 1 Set up the simulator and the analyzer a Connect the ECG simulator to the ECG cable Connect the defibrilla tor analyzer to the pads cable Set the simulator for normal sinus rhythm NSR 1mV amplitude at some nominal rate e g 60 bpm 2 Set up the M4735A Set the defibrillator to Manual Mode and press i z X Sync On Off 3 Check Cardioversion a M4735A Service Manual Verify that sync markers appear on the display at the peak or on the falling side of the QRS complex Adjust the size of the displayed ECG as needed to view it more clearly Select an energy of 5 J Press CHARG
199. ors They are slightly different lengths and are not interchangeable Preparation 1 Save the configuration If possible save the customer s configuration onto a Data Card or print the configuration so the configuration can be restored after the repair is complete 2 Open the case safely See Opening the Case on page 4 26 M4735A Service Manual 4 97 Internal Assemblies Top Case Removal and replacement The Top Case is probably the most difficult and time consuming repair that can be done on the M4735A e Several existing parts need to be moved from the old case to the new e Several new parts must be installed some come with the top case some must be ordered separately Parts to be moved from old top case to new The following subassemblies must be removed from the old top case and installed into the new one Follow the Removal and Replacement instructions in this chapter for each subassembly Remove them in the order shown and replace them in reverse order 1 Printer see Printer Assembly on page 4 7 2 Paddle Holders see Paddle Holders on page 4 20 3 Control PCA see Control PCA on page 4 38 4 Shield Plate see Shield Plate on page 4 42 5 IrDA break off PCA see Keyscan PCA EL Display on page 4 44 or Keyscan PCA LCD Display on page 4 52 6 Keyscan PCA see Keyscan PCA EL Display on page 4 44 or Key scan PCA LCD Display on page 4 52 7 B
200. ough the hole in the hooded plastic shield if present 4 76 Removal and Replacement M4735A Service Manual Internal Assemblies Top Case After Repair After repairs are complete perform the following steps 1 Replace and connect the SpO PCA See SpO2 PCA on page 4 78 If your device has a hooded plastic shield secure it See Reattaching the hooded plastic shield on page 4 71 Reassemble the case See Closing the Case on page 4 123 Restore the customer s configuration Enter Configuration Mode and reload the customer s configuration from the data card or reconfigure the unit as needed See Configuration Mode on page 2 10 Test performance Conduct Performance Verification Testing as described in Performance Verification and Safety Tests starting on page 2 1 Internal Assemblies Top Case SpO PCA The SpO PCA optional is located in the top case behind the printer bucket It is mounted on top of the Parameter PCA The following sections describe how to remove and replace the SpO PCA NOTE If you are replacing the SpO PCA in a device upgrade the device s software to the current release after the repair See instructions in the After Repair section CAUTION See cautions regarding handling and connection of flex circuits on page 4 1 Preparation 1 Save the configuration If possible save the customer s configuration onto a Data Card or print the configur
201. p Reusable SpO Sensor M1131A Adult Pediatric Disposable SpO Sensor length 45cm M1903B Disposable SpO Sensor Pediatric Finger Available outside the U S only M1904B Disposable SpO Sensor Adult Finger Available outside the U S only M1941A SpO 2 meter extension cable M1943A Nellcor SpO Sensor Adapter Cable Data Card 989803147711 Data Card Battery M3516A Sealed Lead Acid Battery M4747A Battery Charger Kit M3506A Battery charger adapter Battery Chargers 989803135291 Cadex C7200 Battery Charger holds 2 XL batteries 989803135321 Cadex C7400 Battery Charger hold 4 XL batteries 989803135341 Cadex C7400 Battery Charger hold 2 XL amp 2 MRx batteries Accessory Pouch M4751A Accessory pouch Extension Cable M4748A Adapter extension cable User Training CD ROM M4735 91000 User Training CD ROM Kit Items marked with an asterisk contain Key Components which require tracking See Table 5 18 on page 5 23 Replacement Parts Key Components Key Components Key components require tracking as indicated below Record the Part Num ber and either the Date Code or Serial Number for both the failed component and the replacement component Table 5 18 Key Components Replacement Assembly Key Component Description Part Number Description Part Number Tracking Method ELECTRICAL ASSEMBLIES Control PCA Control PCA M4735 6
202. parately open neutral and open earth each in turn Should be lt 50 uA Record as qq M4735A Service Manual 2 45 Performance Verification Tests Battery Capacity Test The Battery Capacity Test is not part of the routine post servicing Performance Verification This test is part of the routine checks that the user performs See the Instructions for Use M4735 91900 for details on the frequency of the Battery Capacity test It is included here for reference only To perform a Battery Capacity Test 1 2 Turn the M4735A off Label the unit Place a prominent label on the unit to indicate to others that the battery test is in progress and that the unit may not be used Insert a charged battery If an AC power cord is connected unplug it now Run the test a While pressing Mark turn power on to start the test b Allow the test to proceed to completion The test takes approximately three hours and is complete when test results print out and the device turns itself off Check results Review the test results and take the appropriate action as follows Table 2 3 Battery Capacity Test Results If Then Elapsed Time gt 85 minutes The battery passed the test and 2 Record pass CT and the date on the Low Battery Time gt 10 minutes label on the bottom of the battery 3 Recharge the battery before use Elapsed Time lt 85 minutes 1 The battery failed the test or 2 Record
203. place of the waveform and that the unit both alarms and gives the Pads Off message b Ifusing a 3 lead cable set the unit to monitor from Lead II Fora 5 lead ECG cable set the unit to monitor from the V lead ce Disconnect each of the ECG leads from the simulator one at a time and verify that the display shows a dashed line in place of the wave form and that the unit both alarms and gives the Leads Off message Performance Verification Tests WARNING To check ECG printing functions 6 Reconnect the simulator Connect the simulator to the M4735A as described in step 1 above Print a strip a Press Strip to print a strip b Verify that it shows a normal ECG with a clean baseline c Verify that the date time and configuration information printed at the top of the strip is correct d Press Strip again to stop printing Shock Advisory Functional Check This section describes how to check the Shock Advisory function 1 Set up the simulator a Connect the ECG simulator to the pads cable b Set the simulator for normal sinus rhythm NSR 1mV amplitude at some nominal rate e g 60 bpm Set up the M4735A Set the M4735A to AED Mode Check Shock Advisory with NSR a Press ANALYZE b Verify that the defibrillator responds with No Shock Advised Check Shock Advisory with Asystole a Set the simulator to Asystole or turn the simulator off and press ANALYZE b Verify that the defibrillat
204. ply Power Supply Ribbon Cable to cone Control PCA Power PCA Single Wire to Keyscan PCA 4 30 Removal and Replacement Opening the Case 9 Lay the top case flat on the work surface Lay the top case on the work surface upside down and next to the bottom case section See Figure 4 17 Figure 4 17 Case Opened Flat Bottom Case Top Case M4735A Service Manual 4 31 Opening the Case WARNING WARNING 4 32 Discharge the Defibrillator Capacitor The steps that follow describe how to discharging the unit s Defibrillator Capacitor Always discharge the defibrillator capacitor before servicing this unit To avoid completing a high voltage circuit use only one hand to perform the following steps Keep the other hand away from the unit at all times Touch only the parts described Lift the capacitor out of the way Lift up the defibrillator capacitor together with its foam base Lift straight up then turn the capacitor to the right and rest it on the Power PCA See Figure 4 18 Inspect the Disarm Pathway Look for signs of arcing burning damage to the resistors or inductor blown traces on the Power PCA etc TIP The Disarm Pathway is located under the Defibrillator Capacitor on the left side of the Power PCA The Disarm Pathway consists of two large power resistors Disarm Resistors a red inductor and the PCA traces that connect them See Figure 4 18 Choose a discharge method e Ifthe Disarm Pathway is
205. r Rate and Output should show a highlighted F plus when the up arrow on the key is pressed and show a highlighted minus when the down arrow is pressed Test the Energy Select Switch Test the Energy Select Switch by turning it to each of the energy levels and verifying that the Rotary Knob display changes from Manual On to 2J 3J 5J etc Also turn the unit off and enter Diagnostic Mode by pressing softkeys 4 and 6 while turning the Energy Select Switch to AED On Verify that the Rotary Knob display shows AED On End the test Press Softkey 4 MAIN to return to the Main diagnostic mode menu Performance Verification and Safety Tests Performance Verification Tests To test the display 1 Run the Display Test Select Display Test and press ENTER The display should turn completely light then completely dark then a light vertical bar should scroll across the screen from left to right 2 Test the LEDs The display will show a TEST LEDs softkey label Press this softkey and verify that the indicators in the Main and Pacing keypads each light in turn The AC Power and Batt Charge LEDs will not light as part of this test 3 End the test Press Softkey 4 MAIN to return to the Main diagnostic mode menu To test the audio output 1 Start the Audio Test Select Audio Test and press ENTER The screen will display the Audio Test menu 2 Select and run the desired test a Press the
206. r operation of the M4735A following repair The level of testing required corresponds to the type of repair performed and is divided into 3 categories e External Repairs No Trouble Found e Printer Replacement e Internal Repairs External Repairs No Trouble Found External Repairs are those involving the repair or replacement of one or more of the items below No Trouble Found applies when no malfunction can be found or when the problem appears to be due to improper use In either situation the key point is that the case has not been opened e External paddles e Internal paddles and or adapter cable e Paddle holders e Pads adapter cable e ECG cable e SpO cable or sensor e Battery e Labels e AC Power cord e Consumables ECG monitoring electrodes multifunction defibrilla tion pads printer paper e Main fuse on Battery PCA e Data Card Door Assembly e Battery Eject Assembly The following testing is required after an External Repair or when the outcome of the service is No Trouble Found when the case has not been opened e Perform the Visual Inspection page 2 15 e Run the Extended Self Test page 2 24 e Print and Verify the System Log page 2 22 Performance Verification and Safety Tests Required Testing Levels Printer If the printer was replaced and the case was not opened the following tests are required e Perform the Visual Inspection page 2 15 e Run the Extended Self Test page 2
207. rameter PCA NOTE You can leave plastic shield in place a Unscrew the T10 screw located near the large ribbon connector Be careful not to break the tab b Lift the PCA out of the case 4 For devices with a hooded plastic shield Remove the Parameter PCA a Unscrew the T10 screw located on the tab of the shield near the large ribbon connector Be careful not to break the tab b Lift the PCA out of the case c Remove the plastic shield if damaged a Ifthe shield is not damaged you can leave it in place Otherwise remove the two rubber standoffs and the shield M4735A Service Manual 4 73 Internal Assemblies Top Case Figure 4 35 Removing the Parameter PCA Ribbon Cable to ECG Out Sync Control PCA Connector SpO Connector Cable to ECG Connector Flex Circuit to SpO Connector Parameter PCA 5 Remove the Parameter PCA b Lift the PCA out of the case 474 Removal and Replacement Internal Assemblies Top Case Replacement 1 For devices with no shield or an open plastic shield Replace the Parameter PCA a Connect the SpO gt flex circuit Slide the flex circuit into place then latch the receptacle by pushing in on the top of the receptacle b Lay the Parameter PCA in position in the top case or on the shield if present NOTE If your device has a plastic shield make sure the shield tab is not caught under the Parameter PCA ce Replace the T10 screw near
208. rd or reconfigure the unit as needed See Configuration Mode on page 2 10 3 Test performance Conduct Performance Verification Testing as described in Performance Verification and Safety Tests starting on page 2 1 Removal and Replacement Closing the Case Closing the Case To close the case 1 Recheck connections Recheck connections to all PCAs Be sure all connectors are fully seated and latched 2 Make the unit ready for assembly a Make sure the Data Card ejector button is pressed in fully b Orient the unit flat on a smooth surface so that the handle is closest to you with the bottom case on the left next to the top case See Figure 4 17 on page 4 31 ce Pivot the top case to a vertical position as shown in Figure 4 16 3 Connect the case halves a Connect the large ribbon cable from the Power PCA to the Control PCA b Connect the single wire from the Keyscan PCA to the Power PCA Push straight down with needle nose pliers ce Connect the AC input to the Power Supply by pushing the connector straight into the Module 4 Mate the case halves a Flip the top case over to the left into a rightside up position over the bottom case b Lower the top case straight down with the front edge first to give extra room for the ejector button ce Mate top to bottom 5 Check the unit a Check carefully around all mating edges of the case for any gaskets wires etc sticking out between the case
209. re not properly connected to the device e Failure on Control PCA Failure on Power PCA Corrective Action e Check that the external paddles are con nected e Replace both Control PCA and Power PCA Pads Cable Off The pads cable is not connected to the defibril lator Failure on Power PCA Check that the pads cable connector is locked in place Replace Power PCA Pads Off The pads are not making proper contact with the patient Failure on Power PCA Make sure the pads are properly applied to the patient Replace Power PCA Defib Failure Cycle Power An error has occurred in the defibrillator sub system See System Errors on page 3 5 50J Maximum When using internal paddles the maximum energy delivered is limited to 50J Select a lower energy Pacer Failure The pacing system is not functioning Service the unit See Troubleshooting on page 3 1 Pacer Output Low The pacer is delivering less current to the patient than specified in the output current set ting Check the pads are applied properly patient impedance is high Sp02 Cable Off The SpO cable is not connected to the device Attach the SpO cable to the M4735A p02 Light Interf The level of ambient light is so high that the sensor cannot obtain an SpO reading or the sensor or cable is 1 Cover the sensor with an opaque material 2 Check the sensor and cable for dama
210. re yn een ron errr tT 2 1 Chapter Contents roserne n E E R ee eae ee eee 2 1 Re g ired Testine LeyelS sieren erien tian Eae E E EAEE 2 2 External Repairs No Trouble Found sicccccocsectdeestactestensticesscastecswseeedecsateuecediaetesd lt adbezeetiaets 2 2 Jabal coca E A E E E 2 3 Internal Rep aii coineiesicisrnicsiirrisi iranieni eiis cas oa Eaei E E anI K EEEa E a EEE N beeen 2 3 Testand Inspection Matriz ssc istsaisaesancicimansaam noise amenities 2 4 Test Equipment ancincisavoiaiilannminhisentaidauiadddad emai naieataten 2 9 Configuration and Diagnostic Modes eccccesseeceesceceeeeceenececeeaeceenaeeeestneeessaes 2 10 Configuration IOS sesers aa a tema steaen in eA mtanee ake 2 10 Diasnostie Mode sssri eni e aaaeei ra ai E E A E a aE 2 11 The Language Support Tool accesses lcsaedonecnensnavacsne tren ecaceciee aE E 2 12 Using the Language Support Tool eseesssessessessssrsssesressrseresrestessrseresresseserestesseseresrensesee 2 12 Performance Verification Tests sesdkiwticectcnjesrtewtideritiededmcrsneneumenmiseie 2 14 Visual INSPECTION sicoiir te E E E E Ea E ES 2 15 F nc onal Checks acces dame renees E ARE R EE EE E E ena AE EEEE 2 17 Diagnostic Tests acetate cheeses coheed tanec reiii i e EE EEE E EEE ESKES ETENE aS RE 2 21 SA SU E E E 2 42 Battery Capacity TESt cgeciiaciccetilecaeucedceteccdensceacaian aiaiai rana E EE aE EEES 2 46 Troubleshooting OV ENVIS serscasiacawitarasmnladtunteeaalncninasnea E E A EE E a AE aa E EE aE aa 3
211. rging the battery and running the unit is supplied via the Power Supply The M4735A uses approximately 400 650 uA of 12 V DC when powered off to maintain configuration settings system clock etc When powered on in Monitoring Mode the unit consumes approximately 500 700 mA Contacts Battery Type The battery mates with contacts on the Battery PCA Power from the battery flows through the Main Fuse on the Battery PCA and then through separate wires to the Power PCA for distribution to the rest of the unit Theory of Operation System Functional Descriptions The Battery PCA also detects whether the installed battery is an Philips approved battery or not It does this with a microswitch on the battery PCA which detects if a dimpled recess is present in the end face of the battery Philips M3516A batteries have this dimple while other batter ies even those that are otherwise mechanically compatible do not This information is passed via a separate pair of wires to the Power PCA and from there to the Control PCA During defibrillation the Control PCA will direct the Power PCA to charge the defibrillator capacitor more slowly if there is a battery other than an M3516A present This is done to reduce current drain on the battery and thus avoid tripping the thermal cutout present on many other batteries Philips M3516A batteries do not have this cutout so their current delivery can be greater allowing the defibrillator to charge more
212. rted presents a potential shock hazard Disposing of the SLA Battery The M3516A battery utilizes Sealed Lead Acid SLA technology Dispose of the battery or recycle it according to local regulations for lead containing products Removal and Replacement External Assemblies External Assemblies This section describes how to remove and replace assemblies that are external to the case These assemblies include Assembly User Replaceable Parts and Accessories Printer Assembly Battery Cover Main Fuse Battery Eject Assembly Data Card Door Energy Select Knob Paddle Holders Labels Label Descriptions Removing and Replacing Labels Page 4 15 4 15 4 17 4 19 4 20 4 22 4 22 4 25 CAUTION M4735A Service Manual Be sure to work in a static safe environment The work surface and area surrounding it must be static free Use a static control wrist band in conjunction with an antistatic pad which is grounded per the manufacturer s instructions External Assemblies 4 6 User Replaceable Parts and Accessories The Instructions for Use gives detailed instructions on replacing the follow ing e Patient cables amp sensors e Battery e Printer paper User Maintenance The Instructions for Use gives detailed instructions on maintaining and cleaning the M4735A including e Operational Checks e Battery Maintenance e Cleaning Instructions For the convenience of the service person i
213. rting on page 3 8 to identify the causes based on factors such as error codes and Extended Self Test failures System Errors If the unit displayed a System Message such as System Failure Cycle Power and the error did not repeat when powered up again then check the error codes shown in the System Log e If the only error is 10004 and the unit seems to be operating normally then run ALL the Performance Verification Tests e Ifthe unit passes all tests it can be returned to service Be sure to document this event as you would any other problem e Ifthe unit fails any tests troubleshoot and repair the unit as needed e If there are any errors other than 10004 troubleshoot and repair the unit as needed If the System Message repeats when powered up troubleshoot and repair the unit as needed M4735A Service Manual 3 5 Repair WARNING Repair Once the causes are known follow the steps below to perform the repair Check internal connections It is always good practice to check the unit s internal connections before replacing any subassemblies See Removal Handling and Replacement on page 4 2 for details Replace Defective Subassemblies If the problems were not resolved by verifying internal connections follow the procedures in the Removal and Replacement chapter to replace any defective subassemblies Dangerous voltages may be present on components and connections exposed during unit disassembly Us
214. s The major sections of this chapter are as follows Section Page Servicing Notes 4 1 External Assemblies 4 5 Opening the Case 4 26 Internal Assemblies Top Case 4 35 Internal Assemblies Bottom Case 4 101 Closing the Case 4 123 Servicing Notes Following are some important points to keep in mind whenever servicing the M4735A Key Components Replacement assemblies marked with an asterisk in the Replacement Parts tables contain one or more Key Components Key Components require detailed tracking by recording the key component part number and either the key component s date code or its serial number This data must be recorded for both the failed assembly and the replacement assembly Philips Technologies service personnel must record this information on the Customer Service Order CSO The Key Components that are part of the replacement assemblies are listed in Table 5 18 on page 5 23 4 1 Servicing Notes 4 2 Removal Handling and Replacement The following sections give details of how to successfully work with the internal assemblies of the M4735A Flex Circuit Connections In order for flex circuit connections to function properly they must be discon nected and reconnected as follows e Always unlatch the PCA mounted connector before removing the flex circuit and hold the latch open while reinserting the flex circuit into the connector e When reconnecting align the flex circuit carefully in i
215. s Follow the procedures that match your device Preparation 1 Save the configuration If possible save the customer s configuration onto a Data Card or print the configuration so the configuration can be restored after repair 2 Open the case safely See Opening the Case on page 4 26 3 If your device has a hooded plastic shield detach it See Detaching the hooded plastic shield on page 4 71 4 Disconnect and remove the SpO PCA See SpO2 PCA on page 4 78 CAUTION See cautions regarding handling and connection of flex circuits on page 4 1 Removal 1 Disconnect the Parameter PCA four cables a Disconnect the large ribbon cable by pulling straight up connects to the Control PCA b Disconnect the small 3 pin connector next to the ribbon cable connects to the ECG Out Connector Press on the latch to release it c Disconnect the cable at the opposite end of the PCA connects to the ECG Connector Press on the latch to release the connector d Disconnect the flex circuit connects to the SpO PCA Unlatch the brown receptacle on the PCA by pulling on the top of the receptacle then slide out the flex circuit 2 For devices with no shield Remove the Parameter PCA a Unscrew the T10 screw located near the large ribbon connector b Lift the PCA out of the case 47200 Removal and Replacement Internal Assemblies Top Case 3 For devices with an open plastic shield Remove the Pa
216. s already been discon nected from the Control PCA Note the position and location of the bend in the ribbon cable b Note that two flex circuits to the Pacing Keypad are routed around the top edge of the Keyscan PCA and two flex circuits to the Main Keypad are routed around the lower edge of the Keyscan PCA NOTE If you have a device with serial number USO02XXXXX or USOO3XXXXX a ferrite will be attached to each flex circuit and a metal bracket will be attached to the Main Keypad flex circuit Save the ferrites and the metal bracket as you will need to install these on the replacement Keyscan PCA 4 44 c Disconnect the two pacing keypad flex circuits if installed Unlatch the white receptacles on the PCA by pulling upward on the top of the receptacle then slide out the flex circuit Removal and Replacement Internal Assemblies Top Case d If your device has a metal bracket remove the T10 screw and nut Hold the nut in place with needle nose pliers so it doesn t fall into the case e Disconnect the two main keypad flex circuits and remove the metal bracket f Disconnect the IrDA break off PCA Press on the connector latch to release it g Disconnect the Energy Select Switch Press on the connector latch to release it h Disconnect the two display ribbon cables The larger ribbon connec tor has latches on the ends of the connector press them out and down to release the connector The smaller conne
217. s are properly connected See Servicing Notes on page 4 1 Table 3 5 Audio Tones Tone At power on a low tone of approx 1 second followed by a series of short higher pitched tones Meaning Normal power on sequence Suggested Action None needed At power on a continuous beep of about 7 seconds System failure processors not commu nicating Turn power off then on If problem reoccurs replace Control PCA At any time a repeating tone that alter nates between two frequencies The unit emits this tone beginning 1 minute before shutdown due to low bat tery charge 1 Connect an AC Power Cord or replace the battery with one that is fully charged 2 Replace the AC Power Cord 3 Service the unit See Troubleshoot ing on page 3 1 3 18 Troubleshooting Extended Self Test Failures General Problems Should the unit report a FAIL in the Extended Self Test resolve it using the solutions below NOTE Before replacing any parts check to see if the cables and flex circuits are properly connected See Servicing Notes on page 4 1 Table 3 6 Extended Self Test Failures Failure Possible Cause Suggested Solution RAM Failure on Control PCA Replace Control PCA ROM System CODEC IRDA Timebase System FAIL 10 Lithium backup battery failure Replace lithium battery Data Card Data Card full or incompatible or Replace Data Card
218. s buttons Possible Causes Patient impedance sensed as too high or too low during energy delivery due to e Pads paddles losing contact with patient e Pads paddles failure e Pads cable failure Power PCA failure Control PCA failure Suggested solution Replace paddles or pads and pads cable Replace Power PCA Replace Control PCA Charges but disarms spontaneously 1 Unit sensed Pads Off or Cable Off due to e Pads paddles losing contact with patient e Pads paddles failure e Pads cable failure e Power PCA failure e Control PCA failure e Keyscan PCA failure 2 DISARM key failure intermittent 1 Replace paddles or pads and pads cable 2 Diagnose further as follows In Diagnostic Mode run Controls Test and test DISARM key e Key tests OK Replace 1 Power PCA 2 Control PCA e Key not OK Replace 1 Keyscan PCA 2 Bezel Assembly 3 Control PCA Charges slowly about 4 5 sec instead of 2 3 sec Battery too old or not fully charged Unit senses unsupported battery due to e Unsupported battery in use e Battery PCA failure e Power PCA failure e Control PCA failure Replace with new fully charged battery Also run Battery Capacity Test on suspect battery see page 2 46 Use only supported battery M3516A MS5516A Diagnose further as follows In Diagnostic Mode start Battery Capacity Test see page 2 46 e Unsupported battery on di
219. scard the old flex circuit If the display did not come with a new flex circuit pre attached proceed with reconnecting the current flex circuit to the display and PCA TIP Make sure the flex circuit is both centered from side to side in the connector and oriented at 90 degrees to the connector 3 Replace the Display on the Bezel Lay the Display on the Bezel and replace the 2 screws Figure 4 33 Removing the Display Grounding 2 wire bundles wer Flex circuit Bezel Assembly shown removed from case M4735A Service Manual 4 69 Internal Assemblies Top Case 4 70 After Repair After repairs are complete perform the following steps 1 Replace the Bezel on the case See Bezel Assembly on page 4 59 Replace and reconnect the Keyscan PCA See Keyscan PCA LCD Display on page 4 52 Replace the shield plate See Shield Plate on page 4 42 Replace and reconnect the Control PCA See Control PCA on page 4 38 Reassemble the case See Closing the Case on page 4 123 Restore the customer s configuration Enter Configuration Mode and reload the customer s configuration from the data card or reconfigure the unit as needed See Configuration Mode on page 2 10 Test performance Conduct Performance Verification Testing as described in Performance Verification and Safety Tests starting on page 2 1 Removal and Replacement Internal Assemblies Top Case Hooded Plastic Shield If your
220. sing MAIN If there is any failure begin troubleshooting and repairing the unit as needed See Troubleshooting on page 3 1 and Table 3 7 Operational Problems ECG Monitoring Pads Paddles or Leads on page 3 20 1 Start the test a Access the Diagnostic Test menu as described in Diagnostic Mode on page 2 11 b Select ECG Test and press ENTER c The display should look similar to Figure 2 5 Figure 2 5 ECG Test Display MAIN yr y Ww ENTER ECG TEST Selected Lead Lead Il AC Line Filter 60 Hz On Leads FE Status Good Pads FE Status Good DSP Status Good DC Offset XXXX Peak to Peak Diagnostic 1050 Monitor 1090 PCI 51 Off 2 Check the settings a AC Line Filter The AC Line Filter should be set to the correct frequency for your area If the setting is incorrect access the Configuration Mode and correct it See Configuration Mode on page 2 10 Performance Verification and Safety Tests Performance Verification Tests b Selected Lead This setting does not matter at this point It will be changed later 3 Change the settings as needed a To temporarily change the settings of Selected lead or AC Line filter press the A amp A and W softkeys to highlight the parameter then press and release ENTER to select it NOTE The available choices for Selected Lead will depend on whether the unit is configured for 3 lead or 5 lead ECG monitoring b After a few seconds the
221. sistors Defibrillator Capacitor Foam Base M4735A Service Manual 4 33 Opening the Case Identifying Internal Subassemblies Refer to Figure 4 19 to identify the internal subassemblies Figure 4 19 Internal Subassemblies Patient Foam Defibrillator Power AC Mains ECG Out SpO Connector Connector Base Capacitor Supply Connector Sync Connector ECG Connector Power IrDA Keyscan Control Display Speaker Energy Select PCA PCA PCA PCA Knob amp Switch Bezel 43400000 Removal and Replacement Internal Assemblies Top Case ee Internal Assemblies Top Case This section provides instructions for removing and replacing assemblies found in the top case These assemblies include Assembly Page Lithium Backup Battery 4 36 Control PCA 4 38 Shield Plate 4 42 Keyscan PCA EL Display 4 44 Keyscan PCA LCD Display 4 52 Bezel Assembly 4 59 Energy Select Switch 4 63 Display Assembly EL Display 4 65 Display Assembly LCD Display 4 68 Hooded Plastic Shield 4 71 Parameter PCA 4 72 SpO2 PCA 4 78 ECG Connector 4 81 SpO2 Connector 4 84 Speaker 4 86 AC Mains Connector 4 88 ECG Out Sync Connector 4 91 Pacer Keypad 4 92 Replacement Top Case 4 97 M4735A Service Manual 4 35 Internal Assemblies Top Case Lithium Backup Battery The Lithium Battery maintains the unit s stored information on the Control PCA when the main battery is removed or depleted A cable tie wrap and a package of ProGold wipes are inclu
222. splay Stop test Replace 1 Battery PCA 2 Power PCA 3 Control PCA e No message on display Stop test Replace 1 Power PCA 2 Control PCA Doesn t deliver correct energy into Defibrillator Analyzer or delivers no energy at all Should also get message No shock delivered or Defib fail ure Control PCA failure Power PCA failure Replace Control PCA Replace Power PCA M4735A Service Manual 3 25 Operational Problems Table 3 9 Operational Problems Defibrillation and Synchronized Cardioversion Continued Message or Symptom Doesn t measure its own delivered energy correctly Possible Causes Power PCA failure Suggested solution Replace Power PCA Control PCA failure Replace Control PCA Not synchronizing even though ECG Control PCA failure Replace Control PCA waveform OK on display Fails Defib Meas Test in Diagnostic Power PCA failure Replace Power PCA Mode other then symptoms above Control PCA failure Replace Control PCA Pacing The following table covers problems that may arise while performing external pacing NOTE Before replacing any parts check to see if the cables and flex circuits are properly connected See Servicing Notes on page 4 1 Table 3 10 Operational Problems Pacing Message or Symptom Doesn t deliver correct current into Pacer Tester or delivers no current at all Possible Causes
223. stem Log The System Log includes the unit s serial number hardware configuration and a listing of error codes The System Log should be printed each time a Performance Verification Test is run 1 Enter Diagnostic Mode See Diagnostic Mode on page 2 11 Print the System Log a b Select Print Log and press ENTER The printer will print the System Log strip See Sample System Log Printout on page 2 23 Check the System Log a Check hardware and options Check the printout to verify the printed results are consistent with the hardware in place Check options installed SpO pacing and the unit s serial number on the bottom of the case If the printout is not correct investigate and resolve the source of the mismatch Then reset the hardware options and serial number as needed using the Language Support Tool See The Language Support Tool on page 2 12 Check for M4735A errors If there are device errors reported in the System Log Check the time and date stamps to see if they are recent errors Consult Table 3 2 Error Codes on page 3 11 to identify the errors Begin troubleshooting as needed See Troubleshooting on page 3 1 Performance Verification and Safety Tests Performance Verification Tests Figure 2 2 Sample System Log Printout M4735A SYSTEM LOG Firmware Versions Error Codes Main 11 90007 18 33 28 Aug 2000 DSP 02 196 09 00 Key 02 Sp02 02 42 01 04 Languag
224. t versions of the HeartStart XL Instructions for Use and other documentation M4735A Service Manual 3 7 Troubleshooting Tables Troubleshooting Tables Tables are provided to cover the troubleshooting topics below General Problems Unit Unresponsive Error Codes System Messages Momentary Messages Audio Tones Extended Self Test Failures Operational Problems ECG Monitoring SpO2 Monitoring Defibrillation and Cardioversion Pacing Printer Display Audio Controls Battery and Charging Circuits Data Card Using the Tables Page 3 9 3 11 3 13 3 16 3 18 3 19 Page 3 20 3 23 3 24 3 26 3 27 3 28 3 29 3 30 3 31 3 32 The tables provide both Possible Causes and Corrective Actions Use them as follows e The Possible Causes are arranged in order of the approximate probability of their occurrence Investigate them in the order given e For each Possible Cause try the Corrective Actions listed If the first Corrective Action does not fix the problem try the others in the order listed e Ifnone of the Corrective Actions fixes the problem then try the next Possible Cause listed NOTE 3 8 Before replacing any parts check to see if the cables and flex circuits are properly connected See Servicing Notes on page 4 1 Troubleshooting General Problems The following tables describe general or system level problems For problems pertaining to a particular operatio
225. ta on a Data Card or print out the current configuration See Configuration Mode on page 2 10 Print the System Log Print out the System Log if possible and use any error codes to help highlight problems See System Log on page 2 22 NOTE 3 4 The M4735A log of error codes only reports the last 10 errors If new errors are created at this stage they may overwrite the existing codes and valuable clues to the reported problem may be lost Therefore always attempt to print the System Log before proceeding Run the Extended Self Test Perform the Extended Self Test to catch the errors it reports See Extended Self Test on page 2 24 Proceed to Troubleshoot Now continue with Troubleshoot on page 3 5 Troubleshooting Troubleshoot Troubleshoot Once the problems are identified follow the steps below to discover the causes of those problems If no causes can be found proceed to the Performance Verification and Safety Tests chapter for instructions on what tests to run Perform Functional Checks As you develop your list of possible causes perform Functional Checks as needed to confirm or disprove individual causes See Functional Checks starting on page 2 17 Run Diagnostic Tests Use tests available in Diagnostic Mode to focus in on possible causes See Diagnostic Mode on page 2 11 and start with User Interface Tests on page 2 27 Use the Troubleshooting Tables Use the Tables provided sta
226. ter Paper moves then stops Door improperly latched Paper improperly loaded or jammed Check door latch Reload paper or clear jam Paper moves but printing is faint or absent Door improperly latched Dirty printhead Printer failure Control PCA failure Check door latch Clean printhead Replace printer Replace Control PCA Paper moves but print quality poor or some dots missing Dirty printhead Printer failure Clean printhead See Cleaning the Printer Printhead on page 4 6 Replace printer Loud buzzing or grinding noise Door improperly latched Check door latch Waveforms or text distorted even though they look OK on display Printer failure Control PCA failure Replace Printer Replace Control PCA Black line running along paper Dots printhead elements stuck on due to e Printer failure e Control PCA failure Replace Printer Replace Control PCA White line running along paper Dirt on printhead Dots printhead elements stuck off due to e Printer failure e Control PCA failure Clean printhead See Cleaning the Printer Printhead on page 4 6 Replace Printer Replace Control PCA M4735A Service Manual 3 27 Operational Problems Table 3 11 Operational Problems Printer Continued Symptom Fails Printer Test in Diagnostic Mode other then symptoms above Possible
227. ter 5 The EMC standards state that manufacturers of patient coupled equipment must specify immunity levels for their systems Immunity is defined in the standard as the ability of a system to perform with out degradation in the presence of an electromagnetic disturbance Degrada tion in ECG quality is a qualitative assessment which can be subjective Caution should therefore be taken in comparing immunity levels of different devices The criteria used for degradation is not specified by the standard and may vary with the manufacturer Electromagnetic Compatibility 7 24 Guidance and Manufacturer s Declaration Devices with Serial Numbers US002XXXXxX or greater The HeartStart XL is intended for use in the electromagnetic environment specified in the tables below The customer or the user of the HeartStart XL should assure that it is used in such an environment Table 7 5 Electromagnetic Emissions Emissions Test Compliance Electromagnetic Environment Guidance RF emissions Group 1 The HeartStart XL uses RF energy only for its CISPR 11 internal function Therefore its RF emissions are very low and not likely to cause interference in nearby electronic equipment RF emissions Class B The HeartStart XL is suitable for use in all estab CISPR 11 lishments including domestic and those directly connected to the public low voltage power sup Harmonic emis Class A ply network that supplies buildings used
228. the M3516A battery Table 7 3 Defibrillator and Battery Symbols Symbol Definition Shock hazard Caution See operating instructions in Instructions for Use Input Bl e Meets IEC type BF leakage current requirements and is defibrillator pro tected Patient Applied Part is isolated and defib proof suitable for direct patient contact except the heart or major arteries Meets IEC type CF leakage current requirements and is defibrillator pro tected Patient Applied Part is isolated and defib proof suitable for direct patient contact including the heart and major arteries Alarms are active Alarms are inactive Recyclable material Must be recycled or disposed of properly Unlock Audio speaker Protective earth ground olola rix el gt Alternating current Specifications Symbol Definitions Table 7 3 Defibrillator and Battery Symbols Symbol Definition 7 Dangerous Voltage i Biphasic energy is being used b M4735A Service Manual 7 17 Symbol Definitions The following table lists the symbols that may appear on the M4735A ship ping carton Table 7 4 Shipping Carton Symbols Symbol Definition Atmospheric pressure range Temperature range Relative humidity range a a Recyclable paper product Fragile Re etx t Right si
229. the Power PCA via the paddles cable The Power PCA transfers the keypress to the Control PCA via a large ribbon cable The keypress is then detected and processed by the Control PCA In all cases the charging cycle is initiated and controlled by the Control PCA It directs the Power PCA to begin charging the charge capacitor and it monitors the voltage on the capacitor as reported back by the Power PCA When the Control PCA detects that the selected energy voltage level has been reached it directs the Power PCA to stop charging The Control PCA then continues to monitor the voltage on the capacitor and as the voltage bleeds down it directs the Power PCA to top up the charge to the correct level Should a decision be made to change the selected energy to a lower value the user would turn the Energy Select Switch to the desired setting At the lower energy setting the Control PCA directs the Power PCA to disarm completely discharge the capacitor then charge up to the new lower level If the requested charge is not used within 30 seconds the Control PCA automatically directs the Power PCA to disarm the capacitor as a safety precaution Delivering a shock The discharging cycle delivering a shock is initiated by either of two events e The first is by pressing the front panel key 3 SHOCK when using pads This keypress is transferred from the key to the Keyscan PCA via a flex circuit The Keyscan PCA transfers the keypress to the C
230. the large ribbon connector 2 For devices with a hooded shield Replace the plastic shield and rubber standoffs if necessary a Clean the Parameter PCA recess of the top case with isopropyl alcohol and allow it to dry b Peel one side of the shield adhesive ce Place the adhesive on the short side of the shield that is half aluminum and half plastic d Place the shield into the recess with the shield tab up Make sure the shield lays under the ECG connector e Place the rubber standoffs over the posts in the case M4735A Service Manual 4 75 Internal Assemblies Top Case Figure 4 36 Replacing the Hooded Plastic Shield Shield Adhesive Shield Tab Rubber standoffs 3 For devices with a hooded shield Replace the Parameter PCA a Connect the SpO gt flex circuit Slide the flex circuit into place then latch the receptacle by pushing in on the top of the receptacle b Connect the ECG Connector cable Be sure the connection latches c Lay the Parameter PCA in position on top of the shield and standoffs The PCA fits on top of the shield NOTE Make sure the shield tab is not caught under the Parameter PCA d Secure the shield tab 4 Connect the Parameter PCA a Ifyou haven t already done so connect the ECG Connector cable Be sure the connection latches b Connect the large ribbon cable connects to the Control PCA ec Connect the small 3 pin connector next to the ribbon cable Route thr
231. tion tests include Section Visual Inspection Functional Checks Diagnostic Tests Safety Tests Battery Capacity Test Page 2 15 2 17 2 21 2 42 2 46 Performance Verification and Safety Tests M4735A Service Manual Performance Verification Tests Visual Inspection 1 Examine the cables supplies and accessories a Pass Are they the right ones Sometimes a problem can be resolved simply by using the cables and supplies with which the unit was designed to operate e Are these the brands and models your institution purchases or are they strays from somewhere else e Are they Philips approved or are they some other brand The unit should have e An undamaged fully charged M3516A battery e Anew dry roll of Philips 40457C D printer paper Printer paper may jam if paper is wet Also printer may be damaged if wet paper is allowed to dry while in contact with the printhead elements e Cables and sensors which are approved by Philips and known to be good Also make sure that all external cables are fully inserted in their receptacles e Anew empty HeartStart XL compatible Data Card see Chapter 5 for listing Plugging in the wrong type of card e g a modem card can cause startup failures Are the consumables fresh Check the ECG electrodes and defibrillator pads for freshness date code or expiration date and condition Accessories and supplies are those specified by Philips Electrodes a
232. tom Case The following sections describe how to remove and replace the Bottom Case Assembly Description The Bottom Case Assembly consists of the following components all preassembled into the case at the factory e Data Card Door e Battery Eject Latch mechanism e Case gasket e Plug and O ring for the hole in the front of the case e Rubber feet on the bottom Preparation 1 Save the configuration If possible save the customer s configuration onto a Data Card or print the configuration so the configuration can be restored after the repair is complete 2 Open the case safely See Opening the Case on page 4 26 e Data Card Door gasket Removal and replacement The Bottom Case replacement involves e Several existing parts which need to be moved from the old case to the new e Several new parts which must be installed and some come with the bottom case some must be ordered separately Parts to be moved from old bottom case to new The following subassemblies must be removed from the old bottom case and installed into the new one Follow the Removal and Replacement instructions in this chapter for each subassembly Remove them in the order shown and replace them in reverse order 1 Battery PCA spring cable see Battery PCA on page 4 102 2 Battery eject spring see Battery PCA on page 4 102 3 Patient Connector cables hardware see Patient Connector on page 4 118 4 Defibril
233. tomer s configuration from the data card or reconfigure the unit as needed See Configuration Mode on page 2 10 Test performance Conduct Performance Verification Testing as described in Performance Verification and Safety Tests starting on page 2 1 Removal and Replacement Internal Assemblies Top Case ECG Connector The ECG connector is located at the back of the top case next to the SpO connector if present The ECG Connector kit contains a metal ECG Holder that keeps the cable in place It is important that you install the ECG Holder according to the directions in this section Preparation 1 Save the configuration If possible save the customer s configuration onto a Data Card or print the configuration so the configuration can be restored after repair 2 Open the case safely See Opening the Case on page 4 26 3 If your device has a hooded plastic shield detach it See Detaching the hooded plastic shield on page 4 71 Removal 1 Disconnect the ECG Connector Disconnect the cable from the ECG Connector to the Parameter PCA at the Parameter PCA Press on the latch to release the connector 2 Remove the ECG Holder The metal ECG Holder fits over the back of the ECG Connector The holder is in turn captured under the nearby case standoff a Unscrew the gray case standoff that holds the ECG Holder in place NOTE M4735A Service Manual The two case standoffs are different colors
234. tor Seat the O ring on the connector b Insert the wires through the hole in the case and then through the metal plate Finally guide them though the large nut Use the existing nut and plate ce Align the flat section on the connector with the flat portion of the case hole d Push the connector into the hole seating the O ring into the recess in the case e Tighten the large nut snugly but not excessively The goal is to com press the O ring not crush it hard against the case M4735A Service Manual 4 119 Internal Assemblies Bottom Case 2 Connect the Patient Connector to the Power PCA a Connect the 9 pin connector be sure it latches b Connect the two High Voltage spade connectors by pushing straight down with a needle nose pliers NOTE The two spade connectors are different sizes to ensure correct connection After Repair After repairs are complete perform the following steps 1 Reassemble the case See Closing the Case on page 4 123 2 Restore the customer s configuration Enter Configuration Mode and reload the customer s configuration from the data card or reconfigure the unit as needed See Configuration Mode on page 2 10 3 Test performance Conduct Performance Verification Testing as described in Performance Verification and Safety Tests starting on page 2 1 4120000 Removal and Replacement M4735A Service Manual Internal Assemblies Bottom Case Replacement Bot
235. ts two wires the red wire to the spade connector next to the red induc tor and the white wire to the spade up in the corner of the Power PCA b Unplug the defibrillator capacitor from the Power PCA by pulling straight up on its spade connectors with needle nose pliers Take care to not stress the wires 3 Remove the capacitor a Slide the wires out through the hole in the foam base b Using a clip lead short the capacitor s terminals together to prevent charge accumulation and lay the defibrillator capacitor aside Replacement 1 Replace the capacitor a The new capacitor will come with a shorting bar connecting the two terminals Disconnect the shorting bar b Slide the wires through the large hole in the foam base 2 Connect the capacitor Plug the terminals onto the spade connectors on the Power PCA Orient the wires so they point toward the center of the Power PCA as shown in Figure 4 49 NOTE 4 106 The correct polarity is with the red wire near the red inductor and the white wire near the back corner of the Power PCA Removal and Replacement M4735A Service Manual 3 Internal Assemblies Bottom Case Restore the capacitor to its final position a Pivot the capacitor around to the left b Guide the white wire through the slot in the foam base c Lower the foam base onto the Power PCA Figure 4 49 Disconnecting the Capacitor Power Supply Foam Base Defibrillator Capacitor High
236. ts receptacle Make sure it is both centered from side to side in the connector and oriented at 90 degrees to the connector e Be sure the flex circuit is fully seated in the connector and the connector is properly latched Flex Circuit Handling The flex circuits are delicate and can be damaged by improper handling e Do not bend sharply e Do not scrape the contact surface against other parts e Handle the flex with bent tip needle nose pliers whose jaws are cov ered with a soft material such as plastic tubing or tape Internal Connections Whenever troubleshooting indicates a particular PCA may be at fault it is always good practice to check all the connections to that PCA and retest before replacing the PCA Cable and Assembly Placement How the wires and cables are routed and dressed inside the chassis plays an important role in two areas in preventing long term wear problems and in reducing electromagnetic and radio frequency interference emitted by the defibrillator e When you disassemble any part of the defibrillator pay special attention to how cables and wires are routed e When you reassemble the defibrillator be sure to route and dress all cables and wires as they were originally e Return all components to their original position within the case Removal and Replacement Servicing Notes Instrument Reassembly If you do not reassemble the instrument correctly the instrument may no longer be properly s
237. ucesion are oo eo a E aa eee pene aaea SUSE eaen TE e E aeea TAE Ea 5 14 Instruction Label Sets sissors ana pee era a a ET Eea ES pa E E EE S 5 14 Case Label StS senres noeit ieii eaa AEA ERA E L E E RE E ERG 5 16 Paddle Labels mr mrsaenie stoeie oeaio E i e a a a Eaa E E E 5 18 Other Labels aiias cg cis eea ec a agian aaa a ee ae acacia E E E RE deal dea aca 5 18 Supplies Q PAC CRS COTS ues aces et remeneai sage E ENEE E Reeeaneein tease 5 19 Key Components ccsnencamamiaianinninnnna nina EEEE ERES 5 23 Theory of Operation OVETVIEW irosen enee a in ori er r arsine een ene eer TUES eee 6 1 PCA Description S ascn anna a a E E ETa 6 2 Control PCA ieee A ER E A O 6 2 Power PCA sonicne eee are eE E E E EE E EO O SEE EESE REE EE 6 3 Parameter POA acca dete netar eea e e i aa E A A aaa 6 3 Ke yscan PCA 2 csceveaterscrsdac veined coavsieadeteapsseusdecesdeota ie eau E E E E ESA 6 3 SPOL PCA E E E E A E ters 6 4 Beater y a Oe E E EE 6 4 BSE ohnacs st cenacsaneuuntevstedexsntbceasesveesasesaredesesecata sees E ETE SEERA EEEE EEEE 6 4 Power Supply Sse cepcs discs ck acd th aepeadin acct decade a Esia EE a EE Aa SEEE aiara 6 4 PVM Ess rs eee ceca Adem Eni AEN EEE E EE RN 6 4 System Level Interconnections essessesssessesseseseessstsseessereeseresseresseesssressrresseressereso 6 5 System Functional Descriptions ssessesssessssseseseessresseeessertesseesssresseeesssresseeesereesserese 6 6 Signal and Data FloW siceraria aa eein aasi ieena e aaea iE 6
238. urned to service 3 2 Troubleshooting Evaluate Evaluate Evaluating the situation is key to understanding what needs repair Steps in the Evaluation should include those described below Interview the User If possible talk directly with the user who reported the problem What were they were doing when the problem occurred Exactly what happened with the unit What was on the display What tones or voice prompts were heard Were there operational problems such as a noisy ECG trace Gather the External Components The problems observed may turn out to be in the cables and accessories not in the M4735A If at all possible obtain the cables paddles battery etc that were in use when the problem occurred and use them in your evaluation Also ask if any traces are available often the printout yields valuable clues as to what exactly happened and when Perform a Visual Inspection Thoroughly examine the unit and its cables and accessories Refer to Visual Inspection on page 2 15 Check the Unit Identify problems with the unit by using the information gathered above and following the steps below If no trouble is found proceed to the Performance Verification and Safety Tests chapter for instructions on what tests to run 1 Attempt to power up the M4735A a Disconnect the AC Power cord if connected b Insert a fully charged M3516A battery into the unit c Ifthe unit is used with a Data Card insert a new empt
239. w parts to be installed must be ordered separately In addition the following parts cannot be reused from the old case and must be ordered separately and installed into the new top case e Pacer Keypad if Pacing option is installed see Pacer Keypad on page 4 92 This is available in all the supported languages See Table 5 7 on page 5 11 to select the correct language e Blank Pacer cover if Pacing option is not installed e Instruction Label Set These are available in 2 versions pacing no pacing and in all the supported languages See Table 5 11 on page 5 14 and Table 5 12 on page 5 15 to select the correct version and language e Case Label Set These are available in 2 versions SpO gt no SpO gt and in all the supported languages See Table 5 13 on page 5 16 and Table 5 14 on page 5 17 to select the correct language After Repair After repairs are complete perform the following steps 1 Reassemble the case See Closing the Case on page 4 123 M4735A Service Manual 4 99 Internal Assemblies Top Case 2 Restore the customer s configuration Enter Configuration Mode and reload the customer s configuration from the data card or reconfigure the unit as needed See Configuration Mode on page 2 10 3 Test performance Conduct Performance Verification Testing as described in Performance Verification and Safety Tests starting on page 2 1 41000 Removal and Replacement M4735A Servi
240. ways an impedance mea surement before the shock and a resistance measurement during the shock Before the Shock The M4735A makes a small signal AC impedance measurement at 32 kHz in the steady state situation before a shock is delivered This measurement is used to detect Pads Off and Paddles Off It is also used for the Paddle Contact Indicator PCI function in which the quality of the contact the paddles are making with the patient is indicated on an LED bar graph on the Sternum paddle The unit only displays a numeric value in Diagnostic Mode as part of the ECG test 6 7 System Functional Descriptions During the Shock The M4735A also makes a resistance measurement during shock delivery This resistance is derived from measurements of voltage and current and is reported on the printed event summary The unit uses this value to determine whether to abort the shock or to allow it to complete Since one measurement is a small signal AC measurement of impedance and the other is a high voltage high current measurement of resistance it is normal and expected for the two measurements to produce slightly different numerical results SpO Monitoring Functions The SpO signal from the sensor is carried by the external SpO cable to the SpO connector and then to the SpO PCA There it is amplified filtered and digitized before being passed to the Parameter PCA via a flex circuit Power for the SpO PCA and sensor is provi
241. with the following data HEADER 1 Date Time Heart Rate the SpO Value if available and the text Delayed if printing has been configured for Delayed Mode Prints every 12 seconds HEADER 2 Current mode AED Manual Lead Gain filter setting the text Sync if Sync has been enabled and Pacer Settings consisting of the Pacer Mode Rate and Current if currently pacing the patient Prints every 12 seconds with Header 1 HEADER 3 Changes in Mode Gain Lead Sync and Pacer Settings FOOTER Drug Annotations HR SpO limits on a Limit Alarm the Results of Analysis in AED Mode No Shock Advised Shock Advised or Cannot Analyze Charging to xxxJ Shock Delivered No Shock Deliv ered Disarm Battery Low SYMBOLS Mark Triangle for presses of the Mark key an Alarm Bell Alarm Limit Violations Lightning Bolt Shock Delivered followed by b for biphasic Vertical stripe Boundaries Pacer Sync Tick Marks 7 5 Specifications 7 6 Event Printing Mark key automatically documents ECG and events during defibrillation episodes The Mark key can annotate the event with one of the following labels Epinephrine Adrenaline Atropine Lidocaine and Other Auto Printing The printer can be configured to automatically print on Mark Charge Shock and Alarm Delayed Printing The printer can be configured to run real time or with a six second delay Reports The following can be printed Event Summary Confi
242. with the new switches and overlay b Clean surfaces thoroughly with isopropyl alcohol an alcohol wipe is fine Allow to dry completely 2 Replace the membrane switches a Feed the two flex circuits down through the slot in the case as shown in Figure 4 45 on page 4 95 Peel the backing material off the new switches Handle very carefully and touch the adhesive as little as possible Starting with the top edge align the switches very carefully in their recess in the case and roll them down slowly into place Be careful not to kink the flex circuit tails as you slide them into their slot under the switches Press firmly all over especially the edges to adhere the new switches into place and seal the case opening 3 Replace the Overlay a 4 94 Clean the surfaces of the case and membrane switches not the rubber overlay thoroughly with isopropyl alcohol an alcohol wipe is fine Allow to dry completely Peel the backing material off the Rubber Overlay Handle carefully and touch the adhesive as little as possible Starting with the top edge align the Overlay exactly and roll it down slowly into place See Figure 4 46 on page 4 95 Press firmly all over especially the edges to adhere the new Overlay into place Removal and Replacement Internal Assemblies Top Case Figure 4 45 Installing the Membrane Switches Membrane Flex Circuit Slot in Case Switches Tails Figure 4 46 Replacing the Rubb
243. xternal paddles to the M4735A Make sure the metal surfaces of the paddles are clean and dry Also make sure the slide on adult paddle adapters are making good contact to the pediatric paddle surface b Ifthe PCI setting is On turn it Off now by pressing the Volume Up and Down arrow keys simultaneously See Figure 2 1 on page 2 11 ce Remove the paddles from their holders and hold them firmly together face to face metal to metal Be sure the paddles are clean and are making good contact with one another d Turn the PCI setting On by pressing the Volume Up and Down arrow keys simultaneously See Figure 2 1 on page 2 11 The displayed PCI value should now read 0 15 ohms e Place the paddles back in their holders Be sure the metal contact clip in the holder is clean and makes good contact with the face of the paddle M4735A Service Manual 2 35 Performance Verification Tests f The PCI measurement should now read 50 ohms 30 ohms If the reading is off try wiggling the paddles in their holders If the reading changes substantially when you do this the contacts need cleaning See step a above g Remove the paddles from the holders and hold them apart The PCI measurement should read gt 1250 ohms full scale 2 36 Performance Verification and Safety Tests Performance Verification Tests Pacing Test These instructions describe how to test the pacing function This test only needs to be run if the Paci
244. y HeartStart XL compatible Data Card see Chapter 5 for listing into the unit d Attempt to power up the unit by turning the Energy Select Switch to either Manual On or AED On 2 Evaluate the Response The unit will respond in one of the following 4 ways a No response IF The unit emits no sound and no changes are visible on the display THEN Troubleshoot further using Table 3 1 on page 3 9 Unit Unresponsive M4735A Service Manual 3 3 Evaluate b Minimal response IF Unit provides only a slight response such as a click or chirp from the speaker or a change in the brightness or the borders of the display THEN Replace the Control PCA see Removal and Replacement on page 4 1 Then return to this section and begin again with Check the Unit ce Error message IF The screen is blank except for an error message such as System Failure Cycle Power THEN Turn power off then on If the error does not repeat proceed to Troubleshoot on page 3 5 particularly the section System Errors If the error repeats replace the Control PCA see Removal and Replacement on page 4 1 Then return to this section and begin again with Check the Unit d Powers up IF The unit can generate tones or voice prompts OR display text or graphics OR respond to keypresses THEN Proceed to Capture the Configuration Data below Capture the Configuration Data If possible store the unit s configuration da
245. y failure Run Battery Capacity Test see Battery Capacity Test on page 2 46 If battery fails test replace battery Power Supply failure Replace Power Supply Failure on Control PCA Power PCA or Replace 1 Control PCA 2 Power PCA Battery PCA 3 Battery PCA Fails Battery Capacity Test Battery old worn out or failed Replace battery Failure on Control PCA Replace Control PCA Unsupported Battery message e Not an M3516A battery e Use an M3516A battery only oes e Battery damage e Replace the battery e Failure on battery PCA e Replace the Battery PCA Table 3 16 Power Indicator Matrix INDICATORS SYSTEM STATE MEANING AC POWER ACEN e peli tue G Mains G GREEN Y YES N NO don t care OR ORANGE AMBER OFF OFF N Normal OFF Y Normal OR Y Battery is charging G X Battery at least 90 charged M4735A Service Manual 3 31 Operational Problems Data Card The following table covers problems that may arise with the Data Card NOTE Before replacing any parts check to see if the cables and flex circuits are properly connected See Servicing Notes on page 4 1 Table 3 17 Operational Problems Data Card Symptom Data card is not recognized when plugged in Possible Cause Unit power is already on Card is only recognized during power up sequence Card is full or not a supported type Failure on Data Car
246. y levels for their systems It is recognized that the Heart Start XL defibrillator monitor is designed to receive and amplify low level signals in the same bandwidth as the interference Immunity is defined in the standard as the ability of a system to perform with out degradation in the presence of an electromagnetic disturbance Degrada tion in ECG quality is a qualitative assessment which can be subjective Caution should therefore be taken in comparing immunity levels of different devices The criteria used for degradation is not specified by the standard and may vary with the manufacturer Emissions and Immunity Devices with Serial Numbers US002XXXXX or greater The HeartStart XL is designed and tested to comply with the radiated and con ducted emissions requirement of EN 60601 1 2 2002 See Tables 7 5 through 7 9 for detailed information regarding declaration and guidance The use of accessories transducers and cables other than those specified below may result in increased emissions or decreased immunity of the HeartStart XL Fixed portable and mobile frequency communications equipment can affect the per formance of medical equipment See Table 7 9 for the minimum recommended sepa ration distance between RF communications equipment and the HeartStart XL The list of cables transducers and other accessories with which Philips claims compliance with the emissions and immunity requirements of EN 60601 1 2 are listed in Chap

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