Portable Bladder Scanner
Contents
1. Connector A Companion Chip CS5530A Codec Connector 2 Figure 3 ETX Board Block Diagram See Main Board Schematic for further details of connector Pin assignments Figure 2 Mainboard Top View Mediwatch Service Department Service Documentation Section 1 Chapter 5 Planned Maintenance Handling and Care Although the scanner is produced with the utmost care and only the highest quality components are used maintenance will be necessary from time to time to ensure trouble free operation e Remove loose dust from the exterior with a soft cloth or a dry brush A solution of water with a mild detergent may be used but not freely applied Avoid aggressive cleaners e Check the ventilation fans of the unit for proper operation Handling and Care probes Basic precautions probes Always follow these basic precautions e the probe daily for cracks and other damage e NOT use a probe that has been cracked or damaged e NOT use a probe that has been dropped or struck against another object until it is inspected by a service engineer e Avoid pinching or kinking the probe cable If the probe housing becomes cracked or broken or if there are cuts or openings in the probe cable the electrical safety of the probe could be compromised e Disconnect the probe from the scanner before cleaning and disinfection Make sure to switch the system off before2. 4 NNN oM WO 10 11 Iz Mediwatch UK Ltd Cosford Lane Rugby CV21 1QN Phone 44 1788 547888 Fax 44 1788 536434 Mediwatch Service Department Service Documentation Table of Figures e Figure 1 POR CSCOM EE e Figure 2 E e Figure 3 eet DIOOEORE ER 3 e Figure 4 POR TOO EE 5 e Figure 5 uas eet EE ee 5 e Figure 6 Battery release amp removal 26 6 een e ens 5 e Figure 7 Unscrew 4 screws amp remove COVED assu cau P APERIVAT YR REN Esa E RES 5 e Figure 8 Bauer POC 5 e Figure 9 Back Panel with release screws arrowed ns 5 e Figure 10 Note locaton or long SCIOW 5 e Figure 11 Probe connector lock nut 2 cece aas 5 e Figure 12 Use special Lemo wrench to loosen probe connector 5 e Figure 13 Cut or remove security sticker then hinge top away to separate case 5 e Figure 14 The bottom case and handle grip can be placed to one side 5 e Figure 15 Two screws hold the main assembly in place ssssssssesssss I 9 e Figure 16 Lift main board peeling away earth strap amp disconnect plugs skts 5 e Figure 17 Note location of sounder amp fan and display inverter b
3. Lemo wrench to loosen probe long screw lock nut connector nut Figure 13 Cut or remove security sticker then hinge top away Figure 14 The bottom case and Figure 15 Two screws hold the to separate case handle grip can be placed to one main assembly in place side Figure 16 Lift main board peeling away earth strap amp Figure 17 Note location of sounder amp fan and display disconnect plugs skts inverter board Figure 18 Carefully turn Figure 19 Shielding removed Figure 20 Probe interface panel set Remove screws to over main panel separate 5 Mediwatch Service Department Service Documentation Section 1 Chapter 6 Unit Disassembly continued Figure 21 Separate ribbon connector or carefully hinge probe Figure 22 torevedl ETX Retain Heatsink from other side interface boards Heatsink screws Figure 23 The compact flash can now be removed Figure 24 24 RAM can also be accessed if necessary reprogrammed amp replaced Observe E S D precautions Figure 25 The compact flash can now be removed Figure 26 24 RAM can also LCD mounting brackets amp reprogrammed amp replaced be accessed if necessary Screws Observe E S D precautions m e ae ee eum PPPP a EEEM Dual frequency probe amp Rear panel connections Bottom case label Keypad membrane connector 6 Mediwatch
4. Service Department Service Documentation Section 1 Chapter 7 Faults and Solutions Screen Related LCD blank can be caused by loose connector at rear of display panel or faulty display LCD poor contrast or dark due to failure of inverter board P N C 00049 Probe Related Probe knocking generally caused by one or more broken wires at the back of probe socket Probe not scanning error message probe too hot Probe or probe interface board Keypad Related Led failure internal led becomes detached possibly due to operator replace keypad No response from keypad Due either to connector failure or to short caused by poor etching of the keypad ribbon cable Reconnect or replace keypad Software Related On the rare occasion that Windows 98SE crashes the display will freeze and keypad will be inactive In this situation the system will automatically shut down after 15 seconds DO NOT remove the battery pack until this has happened Removing the battery pack before complete shutdown could cause the following problems Unit boots into windows safe mode connect external keyboard and follow screen prompts if problem is not resolved after two or three reboot attempts then unit requires the compact flash to be reprogrammed Fatal exception error run scandisk to establish integrity of compact flash using the ETX test assembly If flash disk fails then replace and reprogram with latest version Boot error message writing to drive c trea
5. Type BF handheld equipment Acoustic Output information for the 3 5 5 0 MHz Mechanical sector 410047 Parameter Mode _ 1 2 15 mW cm2 2 8 System settings 5 0HMz Min scan angle Min scan depth 1p 53 8 mm Wpb6 _1_ mm 2 4 Prr KHz 1708 Srr Hz 2 8 Output Beam Dimensions 520 6 Area lt mm 19 35 Fawf MHz 3 2 Acoustic power up fraction 0 Maximum Power 2 6 mW lob 0 6 mW cm Power up mode B Initialisation mode B Acoustic output freeze YES L tt 7 29 mm Lts CONTACT mm Inclusive modes B 2 Mediwatch Service Department Service Documentation Section 1 Chapter 4 Connector overview Connections Backlight Repairable Parts LCD Display Serviceable by Module Only eqoug oiuoseJn Composite USB Converter bx Probe Board 1 Probe Board 2 ETX Board With Dimm amp Flash Memory External Peripherals pP lt Removable Battery Pack Backlight Inverter 7 Way Keypad Printer 8 amp Universal DC Supply Applied Only When Battery Pack A Charging Removed 4 Figure 1 Portascan Block Diagram EXT Board Main Board ETX CPU 1 Geode GX1 l 1028aseT Ethernet Controller sec master ME 12 Hard Disk s Interface JLI BIOS flash memory 1
6. disconnecting or connecting the probe e To prevent hazards refer to your local requirements for adequate electrical installation in case of class 1 type BF Agents and procedures that may damage the probes Some agents and procedures damage probes Use of any of the following procedures or products WILL VOID your probe warranty Agents that contain the following chemicals are known to damage the probe e Acetone e Methanol e Denatured ethyl alcohol e Mineral oil e lodine e Any lotions or gels containing perfume Check with the ultrasound gel manufacturer regarding gel contents If you have additional questions please contact your representative The following procedures are known to damage probes e Autoclaving e Soaking the probe in chlorine bleach General probe cleaning Cleaning the probe is done by first removing the ultrasound coupling gel with a soft tissue and then gently wiping the probe dry using a new tissue or dry cloth When more cleaning is required only a mild detergent or hand soap may be used together with some water and a soft tissue cloth 4 Mediwatch Service Department Service Documentation Section 1 Chapter 6 Unit Disassembly Figure 7 Unscrew 4 screws amp remove cover Figure 8 Battery Pack amp Figure 9 Back Panel with PCB Board release screws arrowed Figure 10 Note location of Figure 11 Probe connector Figure 12 Use special
7. the appropriate socket on the back of the unit Switch the unit on by pressing the red power button amp wait for the unit to start up Hold down AIS Shift amp Control then press W very briefly to disable the Interface board watchdog timer Switch off by pressing the red button and wait for the unit to power down Remove the keyboard and switch the unit back on by pressing the red button Wait for the unit to start up Press the display brightness button several times and ensure that the display brightness toggles between its high and low setting Press the menu button and check that the menu options are displayed Using the UP DOWN menu buttons select the Date Time option and then press the SELECT button Press the SELECT button again to select the Set Date option Check that the correct date is displayed If the incorrect date is displayed then set the correct date by using the UP DOWN and TAB menu buttons and lock the setting by pressing the SELECT button Press the menu button Using the UP DOWN menu buttons select the Date Time option and then press the SELECT button Press the DOWN button and then the SELECT button to select the Set Time option Check that the correct time is displayed If the incorrect time is displayed then set the correct time by using the UP DOWN and TAB menu buttons and lock the setting by pressing the SELECT button Press the menu button Using t
8. CT button to select the 3 5Mhz option The unit will switch to 3 5Mhz operation and 3 5Mhz will be displayed at the top of the display Press the green button to start scanning Align the probe on a phantom bladder so the largest section of the phantom can be seen on the display Press the magnification button repeatedly so that the unit cycles through all levels of magnification then set the magnification so that the phantom fills the display but dose not overlap the edges of the scan sector Press the print button to obtain a hard copy of the result Press the sagittal scan button and rotate the probe 90 degrees from the position of the first scan and obtain the largest section and press the sagittal scan button again to obtain the reading Press the print button to obtain a hard copy of the result On the printed results record in the field Patient Name the serial number of the unit that is being inspected Open the printer door and raise the print head and remove the paper Feed the paper back into the printer until the end appears from the front paper slot and re engage the print head Press the print button The last recorded image should be printed Leave the unit sitting for 5 minutes in which time the display should have shut down If the unit is left for longer than 7 minutes the unit will switch off and the test will need to be repeated in order to proceed to the next step Press any func
9. GE Healthcare Portascan Portable Bladder Scanner Service Manual atio at WO rk Portascan Service and Assembly Manua MAN 004 049 Issue 1 Table of Contents Section 1 Service Information Chapter 1 Introduction About inis FCIBIUOI Chapter 2 Warnings and Precautions Precautions Chapter 3 Technical Specifications of the Scanner EL ale geren qutt s een be ves ACOUSTIC Output INTONIMOGUON us Eege EE Chapter 4 Connector overview Main DOOI M ETX Board e Chapter 5 Planned Maintenance OnO 6 EE Handling and Care probes Agents and procedures that may damage the probes Chapter 6 Unit Disassembly Inge er Chapter 7 Faults and Solutions Screen Related 0 e Probe Related MER Keypad GoftworeReloted RR ees Chapter 8 Parts list sss Chapter 9 ESD MOTOS ere See Preventing ESD datmidiel EE SC SO WOE NOD EE ESD safe field service 0 lisse Circuit Diagrams DOON E esera TP Appendix 1 Testing or FING En st neice cy cin ars degree ire tk d
10. eometry only monitors properly adjusted by the manufacturer may be used on the scanner e the probe carefully after a drop A dangerous situation may arise due to damaged insulation of the probe surface e prevent damage to mechanical probes due to excessive heat a warning mechanism has been built into the system 1 Mediwatch Service Department Service Documentation Section 1 Chapter 3 Technical Specifications of the Scanner General Specifications Power Input Power Consumption Scanning Method Display Modes Probe Frequency Max Image Depth Scan Converter Bladder Volume Accuracy 10 13 5 12 VA Mechanical Sector B mode 3 5 5 0 MHz 20cm Full Digital 512 x 512 x8 O 1500 ml 0 699 ml 20 20ml whichever is700 ml 1500ml 25 25ml greater Accuracy is based upon usage as per instructions and scanning a tissue equivalent phantom Display Format Battery Dimensions Weight Enclosure Leakage and Earth Leakage Current Environmental Operating Conditions General Storage Conditions Standards 8 inch colour TFT LCD 640 x 480 pixels 12 Volt rechargeable at least 1 5 Hrs continuous operation from full charge WxDxH 16 x13 x 13 cm 2540g without battery and probe3220g with battery and probe Within specification for Class Il type BF according to EN 60601 1 Temperature 8 40 C Humidity up to 90 20 C Temperature 0 50 C EN 60601 1 amp Class II
11. he UP DOWN menu buttons select the Set Probe Frequency option and then press the SELECT button Press the DOWN button and then the SELECT button to select the 5Mhz option The unit will switch to 5Mhz operation and 5Mhz will be displayed at the top of the display Press the green button to start scanning Align the probe on a phantom bladder so the largest section of the phantom can be seen on the display Press the magnification button repeatedly so that the unit cycles through all levels of magnification then set the magnification so that the phantom fills the display but does not overlap the edges of the scan sector Press the green scan button to record the reading Check that the reading is within tolerance or 10 of indicated phantom volume Press the print button to obtain a hard copy of the result Press the sagittal scan button and rotate the probe 90 degrees from the position of the first scan and obtain the largest section and press the sagittal scan button again to obtain the reading 12 Mediwatch Service Department Service Documentation Section 1 Appendix 1 Testing of Final Assembly continued Instructions Pass fail Press the print button to obtain a hard copy of the result Press the menu button Using the UP DOWN menu buttons select the Set Probe Frequency option and then press the SELECT button Press the DOWN button and then the SELE
12. ices and productivity solutions So no matter what challenges your healthcare system faces you can always count on GE to help deliver the highest quality services and support For details please contact your GE Service Sales Team GE Healthcare Building 4B 21 South Street Rydalmere NSW 2116 Australia Phone 1800 223 615 www gehealthcare com imagination at work
13. n two bodies with a potential difference This transmission can be achieved by direct contact or by an inducted electrostatic field Electro static discharges are not always noticed by operators because ESD 15 Components and integrated circuits are more sensitive than operators and might be damaged by lower voltage discharges sensed at 3 500 Volt audible at 4 500 Volt visible at 5 000 Volt Component Type ESD sensitivity in Volts V MOS 30 1800 mosFET 100 200 EPROM 100 JFET 140 7000 OP AMP 190 2500 C MOS 250 3000 Schottky Diodes 300 2000 Bipolar Transistors 380 7000 ECL 500 1500 SCR 680 1000 Schottky TTL 1000 2500 Preventing ESD damage Use electro static sensitive parts only in an ESD safe workshop e Use ESD safe packing material e Remove all static chargeable materials plastics from the workshop e Wear ESD safe clothing e Always check wrist strap and other ESD equipment before use e Be grounded e BE AWARE ESD safe workshop To be sure that there is no potential difference between body boards and work surface the work surface should be made of electrostatic dissipative rubber The work surface should be connected to a central ground point The engineer handling the boards should also be connected to the central ground point either through wrist strap or heal strap and conductive floor ESD safe field service To enable ESD field safe service an ESD field ser
14. oard 5 e Figure 18 terr over TOUR DONG 5 e Figure 19 Shielding tM SI 5 Mediwatch Service Department Service Documentation Table of Figures e Figure 20 Probe interface panel set Remove screws to Separate D e Figure 21 Separate ribbon connector or carefully hinge probe interface 6 e Figure 22 to reveal ETX Heatsink screws Retain Heatsink from other side 6 e Figure 23 The compact flash can now be removed reprogrammed amp replaced 6 e Figure 24 RAM can also be accessed if necessary Observe E S D 5 6 e Figure 25 Thermal Printer PCB and location 6 e Figure 26 Paper fol Ri De EE 6 e Dual Frequency Drovebconnechor e ens 6 e Rear panel connections 6 0 MMIETTTT 6 Keypad MEMDTONE prd d d rod 6 Mediwatch Service Department Service Documentation Section 1 About this manual Chapter 1 Introduction This service manual can be used to service the Portascan at board level The manual explains the functioning of the boards by means of functional block diagrams and photographs while connec
15. ply with the IEC requirements e The product must be used in accordance with the instructions for use Precautions e Cleaning the probe is done by first removing the ultrasound coupling gel with a soft tissue and then gently wipe the probe dry using a new tissue or dry cloth e When more cleaning is required only a mild detergent or hand soap may be used together with some water and a soft tissue cloth e avoid possible damage the probe cable must not be coiled to a diameter of less than 9 cm 3 5 inch e Although there is no danger to a patient with an implantable pulse generator IPG ultrasonic scanning equipment could cause mechanical damage to the IPG if used directly over the device s implant site e use the equipment in locations subject to intense electric or magnetic fields near transformers for example If the equipment is used in such locations the monitor will be adversely affected e Do use the equipment near devices generating high frequencies such as medical telemeters and cordless telephones If used near such devices the equipment may malfunction or adversely affect such devices e guarantee proper unit operation do not operate the scanner in an environment with a temperature in excess of 55 C If the equipment is used in a small room the room temperature may rise Proper ventilation must be provided e Avoid installation near a heater or in direct sunlight e For correct image g
16. t as per fatal exception error 7 Mediwatch Service Department Service Documentation Chapter 8 Parts List Parts Description Mediwatch Code Battery Cells PSA00020 Battery Gold Contacts PSA00021 Battery Pack PA00141B Battery Pack Case Lower C00052A Battery Pack Case Upper C00051A Battery PCB 00052 C00068 Flash Memory 256Mb C00169 Flexi Links Interface PCB pair PSA00065 Frame Grabber PCB C00165 Motherboard PCB PSA 00042 ETX PCB C00148 SDRAM 256Mb C00168B Interface PCB PA00143A Inverter Cable C00049 Screening Cans PSA00062 Keyboard Membrane PSA00182 LCD Backlight Inverter C00048 LCD Bracket Bottom PSA00015 LCD Bracket Top 00014 LCD Data Cable PSA00017 LCD Screen 00047 Lid PSA00006A Magnet Contact PSA00061 Magnet Support Plates PSAO00060 Handle Soft Grip PSA00011 Magnet Print Lid C00216 Main Case Lower C00037A Main Case Upper C00036A Main Printer Lid C00040A Printer Bowl C00041A Printer Pcb Assy PSA00045 Probe 3 5 5 0Mhz PA00143 Probe Connector Location Washer PSA00072 Probe Connector Mounting Ring PSA00064A Battery Charger PA00142B Speaker C00067 Thermal Print Unit C00057 Mediwatch Service Department Service Documentation Section 1 Chapter 9 ESD What is ESD Electro Static Discharge ESD is the transmission of electro static charges betwee
17. tion button to reactivate the display Press the red power button The unit will now shutdown and switch off Remove the battery pack Fit the top cover with protective polythene Ensure that the top cover opens and closes smoothly and that the latch holds the cover securely in place when closed Ensure that the friction latch holds it from falling forward when fully opened Check that the Power drawn by the Battery when the unit is powered down is less than 10mA This Bladder scanner has PASSED FAILED the above Test Procedure Delete as appropriate Signed Date 13 Mediwatch Service Department Service Documentation Visit us online at www gehealthcare com 2005 General Electric Company All Rights Reserved GE and GE Monogram are trademarksof General Electric Company GE Medical Systems a General Electric company going to market as GE Healthcare Windows CE is either a registered Trade Mark or a Trade Mark of Microsoft Corporation in the United States and or other countries General Electric Company reserves the right to make changes in specifications and features shown herein or discontinue the product described at any time without notice or obligation Portascan manufactured by Mediwatch UK Ltd Swift House Cosford Lane Rugby Warwickshire CV21 10N For more than 100 years scientists and industry leaders have relied on General Electric for technology serv
18. tions can be checked at the connector overview Preventative and corrective maintenance is also included as are circuit diagrams Warnings Chapter 2 Warnings and Precautions e Aprobe may only be connected to or disconnected from the scanner while the instrument is switched off Ignoring this may cause severe damage to your scanner and or probe e To avoid a risk of explosion the equipment must not be operated in the presence of flammable anaesthetics e To avoid a risk of electric shock do not open the equipment Refer servicing to qualified personnel only e Be careful not to place the patient into contact with the ultrasound equipment or other devices If the ultrasound equipment or other devices are defective there is a risk of electrical shock e For continued protection against fire hazard replace fuses only with the same type and rating e The use of non Mediwatch Plc components with this scanner may result in damage to Mediwatch Plc components e To prevent hazards refer to your local requirements for adequate electrical installation in case of class 1 type BF equipment e Do not subject the equipment to excessive shock for example when moving the equipment If the equipment is repeatedly subjected to excessive shock mechanical parts may be damaged e Assembly operations extensions re adjustments modifications or repairs must be carried out by authorized persons e electrical installation of the relevant room must com
19. vice kit has to be used whenhandling boards This ESD field service kit should be connected to a central ground point and the service engineer should be connected to the ESD field service kit through a wrist strap Handle boards only on this ESD field service kit and pack in ESD safe packing material More information about ESD precautions All precautions against ESD damage are described in the CECC 00015 l regulations composed by the CECC Cenelec electronic Components Committee 9 Mediwatch Service Department Service Documentation Section 1 Circuit Diagrams 10 Mediwatch Service Department Service Documentation Section 1 Circuit Diagrams Mediwatch Service Department 11 Service Documentation Section 1 Appendix 1 Testing of Final Assembly Scanner Serial No Interface Board Serial No Probe Serial No Instructions Pass fail Insert a charged test battery pack and check that it fits securely Ensure that the printer door opens and closes smoothly and that the magnetic latch holds the door securely when the door is closed Restrain paper and shake unit and ensure that there are no loose parts inside Unplug the probe from the unit by pulling on the release ring on the plug and ensure that there is no damage to the connector on the unit or the probe plug Plug the probe in and check that it clicks securely in place Plug a standard PC keyboard into
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