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- Frank`s Hospital Workshop

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1. Er ERROR MESSAGE EXPLANATIONS Er60 TUBE CPU internal 15VDC voltage is out of limits Er61 Failure or sporadic disturbance in serial communication between TUBE and REAR CPU or non compatible software versions Er62 Failure or sporadic disturbance in serial communication between REAR CPU and external test device Er63 Error in STOP communication line between TUBE and REAR CPU Er64 Error in exposure communication line between TUBE and REAR CPU Er68 Both switches paddle down and paddle up of one foot control are pressed down Er71 Software chip EPROM failure on TUBE CPU Er72 Software chip EPROM failure on REAR CPU Er73 REAR CPU attempted to execute an illegal program instruction Er74 REAR CPU watchdog reset occurred please contact Planmed Er75 REAR CPU illegal interrupt detected please contact Planmed Er76 REAR CPU timer interrupt error please contact Planmed Er77 REAR CPU stack overflow please contact Planmed Er78 Time of day clock oscillator 32768 Hz not oscillating or out of tolerance Er79 TUBE CPU stack overflow please contact Planmed Er80 REAR CPU parameter memory EEPROM failure Er81 TUBE CPU parameter memory EEPROM failure Er82 REAR CPU CONFIG register contains wrong data Er83 TUBE CPU CONFIG register contains wrong data Er84 REAR CPU parameter memory EEPROM is empty or erased Er85 Flat battery on REAR CPU RAM stand by NiCad battery is drained or has failed Er86 Short mains v
2. Er ERROR MESSAGE EXPLANATIONS Er00 Exposure switch was released too early during the exposure Er01 Magnification exposures cannot be taken with the Bucky connected Remove the Bucky grid Er02 Bucky is not correctly positioned or the paddle size sensing microswitch signal is wrong Er03 There signal from the selected AEC sensor is too low or missing completely or the radiation reaching the sensor is extremely low or missing completely or the small focus is accidentally selected instead of normal Er04 The cassette is not properly positioned on the cassette table or a problem with the cassette sensing switch Er05 The cassette was not removed from the unit after the last exposure double exposure prevention Er06 The cassette guides are not positioned firmly against the sides of the cassette or a problem with the cassette size sensing switches Er07 A large cassette with a small lower paddle is not allowed or a problem with the size sensing switches Er08 A small cassette with a large lower paddle is not allowed or a problem with the size sensing switches Er09 Exposure is not allowed before you select a projection or the cassette table is in the LOAD position Er10 X ray tube Anode voltage kV overshoot Er11 X ray tube Anode voltage kV dropped suddenly Er12 X ray tube cathode filament pre heating voltages are not calibrated Er13 X ray tube Anode current mA sudden peak possible X ray tube arching Er14 AEC se
3. 210 700 200 TUBE HOUSING HEAT DISSIPATION CAPACITY 180 600 COOLING 707W 160 500 1 565W A g De 3 120 w 400 lt 100 424W E v P sop z 80 ii I 283W 60 200 a _ 141W 100 20 0 0 0 1 2 3 4 5 6 7 8 9 10 0 50 100 150 200 250 TIME min TIME min A 10 Sophie Mammography X ray unit Technical Manual Chapter A GENERAL amp TECHNICAL DATA TECHNICAL SPECIFICATIONS TOSHIBA E7290 X RAY 8 ORIGINAL MANUFACTURER TECHNICAL SPECIFICATIONS TOSHIBA E7290 X RAY TUBE PLANMED Oy Asentajankatu 6 00810 Helsinki FINLAND phone 358 9 7590 5300 fax 358 9 7590 5555 MODEL AND APPROVALS MODELS PLANMED SOPHIE PLANMED SOPHIE MOBILE APPROVALS IEC safety class IEC degree of protection B IEC enclosure class IP20 Complies with IEC 601 1 safety and IEC 601 2 7 radiation regulations X RAY TUBE ASSEMBLY X ray tube Anode type Anode braking Anode thermal capacity Anode target material Anode target angle Tube port material Focal spot sizes Filtration GENERATOR ASSEMBLY Generator Anode voltage range Anode current range 0 3mm focus Anode current range 0 1mm focus mAs range 0 3mm focus mAs range 0 1mm focus Exposure time 0 3mm focus Exposure time 0 1mm focus Cooling Line voltage Line voltage compensation Line voltage regulation Fuses Total power consumption Power factor Mode of operation Maximum mains resistance Maximum continuous heat dissipation BUCKY GR
4. D 4 DETAILED ERROR MESSAGE EXPLANATIONS D 8 4 1 ERRORS 00 09 User related not stored in internal error list D 8 4 2 ERRORS 10 16 X ray safety and AEC sensor related 00 0 eee D 9 4 3 ERRORS 20 29 motion and compression related 0 eee ee eee D 10 4 4 ERRORS 30 38 tube head and power supply related 005 D 12 4 5 ERRORS 40 49 sensor amp switch related 0 0 0 eee D 13 4 6 ERRORS 50 59 temperature amp special sensor related 0 005 D 15 4 7 ERRORS 60 68 serial communication amp CPU voltage related D 16 4 8 ERRORS 71 78 CPU software related 0 0 0 c cece eee D 16 4 9 ERRORS 80 87 CPU hardware related 0 0 0 0 cece eee eee D 17 4 10 ERRORS 90 97 Erroneous sensor signals liil esee D 18 ChapterE PREVENTIVE MAINTENANCE 1 SYSTEM MAINTENANCE RR EIER RERO E 1 1 1 Cleaning i ose eka seas yea aes Ye PE RE DR Ee E 1 1 2 Operators maintenance schedule 0 000 c eee esee E 1 2 PREVENTIVE MAINTENANCE CHECKS E 2 2 1 Preventive maintenance schedule llllell eee E 2 2 2 Calibration and verification of the instruments lsellses esee E 2 2 3 Determining half value layer HVL beam quality llle eese E 3 2 4 Checking X ray tube efficiency radiation output liliis E 4 2 5 Focal spot size measureme
5. The magnification factor is displayed in the time force display during the MAG mode and can be manually set to any value from the 1 30 minimum to the current maximum simply by pressing the MAG key repeatedly 2 4 Automatic release of compression after exposure Setting in Cm gt this unit Press the CTL key and the release key to toggle the automatic compression release feature on or off a LED OFF No automatic release The breast must be released manually by pressing this key after each exposure or by driving the compression paddle upwards from the controls Nu 7 b LED ON Automatic release of compression selected The compression paddle is automatically driven after the exposure to the highest position The factory default is on The unit can also be set to run the cassette table automatically into the LOAD position at the same time as the automatic release is selected see 05 AUTO LOAD on off on page F 17 CAUTION During norma use of the unit it should be noted that the automatic compression release function should always be turned off to prevent inadvertent movement of the compres sion paddle during biopsy procedures When the automatic release is switched off also the optional Auto load movement is inhibited 2 Initial descent speed Con mC gt gt Seting in hold for 3 seconds Press the CTL key and then press and hold the left mAs key for 3 seconds
6. 0 00 0 eee eee F 61 6 8 Lower paddle identification switches llle F 64 Chapter G TROUBLESHOOTING amp FAULTFINDING 1 DISPLAYING INTERNAL SENSOR SIGNALS G 1 2 ELECTRICAL PROBLEMS eeeee nnn G 1 2 1 Unit completely dead illlsieele esee ne G 1 3 MOTOR amp MOTION RELATED PROBLEMS G 2 351 DOmolorsaa hte eo ave teat ee Uo iS dh bs educ ded p Wd jute bs G 2 3 2 Stepper motors 2043 Ta pep Re DIRAS VM Reged pee be die derg al G 3 Technical Manual Sophie Mammography X ray unit TOC 3 TABLE OF CONTENTS 4 MECHANICAL PROBLEMS leeee eee G 6 4 1 Paddle holder related 0 2 cee eee eee G 6 5 BEFORE CALLING FOR ASSISTANCE G 8 5 1 General required information 0 0 0 cect eee G 8 5 2 How to report image quality problems 0 ee eee G 8 5 3 How to contact Planmed head office liess G 8 Chapter H PARTS REPLACEMENT amp REPAIR 1 REMOVING amp REPLACING COVERS H 1 T1 Basecovers z sme Sb et etuer eie eret RU ERU AN E NE bus H 2 1 2 Telescopic column covers 0 cee ttt n H 2 1 3 Stationary column covers 0 0 cect tees H 3 1 4 C atmicoVels a ies dev Pcp aa eae tek nt Re eve e S4 wt alate H 4 15 Hood ws H 6 1 6 Cassette table cover 0 0 i a pa o eR ete teens H 7 1 7 Colimator COVE fit
7. Figure F 12 d Check that the exposed area is straight on the film Adjust the collimator magnet holder when needed Fig F 12 1 and if that does not correct the situation turn the collimator assembly slightly F 38 Sophie Mammography X ray unit Technical Manual Chapter F ADJUSTMENT amp CALIBRATION MECHANICAL ADJUSTMENTS e Place a loaded small cassette crosswise on the cassette table Fig F 5 1 f Select 25 kV AEC small focal spot filter 1 take an exposure and develop the film film B EN 5 B Figure F 13 g Place the film A on the top of the film B Measure the area that has exposed over the cassette table front edge 1 The exposed area must be between 2 mm 4 mm Ja N 72m j X B 2 4mm pos Figure F 14 Technical Manual Sophie Mammography X ray unit F 39 Chapter F ADJUSTMENT amp CALIBRATION MECHANICAL ADJUSTMENTS h If needed the front edge adjustment for large focal spot is performed by adjusting the cutter assembly position Fig F 15 1 Loosen the cutter assembly screws and adjust the assembly position so that the area that has exposed over the cassette table front edge is between 2 mm 4 mm see Fig F 14 on previous page adjcutassy eps Figure F 15 X ray beam adjustment small focal spot a Perform the same adjustment as with large focal spot a g with small focal spot b If needed the front edge adjustment for small focal sp
8. 17 nn nn hexadecimal value of the tubehead temperature sensor signal This display shows as a hexadecimal number the tube temperature sensor output used for internal factory tests only 18 Power supply temperature sensor output 18 nn nn hexadecimal value of the power supply temperature sensor signal This display shows as a hexadecimal number the power supply temperature sensor output used for internal factory tests only C 12 Sophie Mammography X ray unit Technical Manual Chapter D HELP AND ERROR MESSAGES 1 GENERAL ABOUT ERROR DISPLAYS The microprocessor system in the SOPHIE is capable of reporting about various abnormal condi tions There are three different message types that can appear on the clock displays STOP HELP and ERROR The STOP and HELP displays are mainly intended to guide the user in everyday use of the unit The ERROR system is intended as an aid for the service technician in case of faults or abnormal conditions The last 49 ERROR events are stored in internal memory and can be retrieved and viewed on demand or printed if a suitable printer is connected see paragraph Printer option on page B 8 for details 1 1 Stop message StoP kg The STOP message indicates that one or several of the red emergency STOP buttons are acti vated No motorized movements or exposures are possible during this condition Release pull upwards both STOP buttons in the fo
9. 4 DETAILED ERROR MESSAGE EXPLANATIONS The purpose of the error messages is to make faultfinding easier The internal list of the last 49 error occurrences is of a great help since it contains additional information such as time date and other exposure parameters and settings when the error occurred Please refer to paragraph SERVICE MODE FUNCTIONS SHORT FORM on page C 4 how to display or print the error list This chapter discusses in greater detail the errors and gives background information about reasons for the errors If you need further assistance with faultfinding please refer to paragraph TROUBLESHOOTING amp FAULTFINDING on page G 1 4 1 ERRORS 00 09 User related not stored in internal error list These errors usually indicate that some external circumstance causes a situation where the unit refuses to continue with the exposure These errors can easily be corrected by the user How ever some of these errors could be caused by a malfunctioning sensor cable or switch and the following explanations should help in detecting the problem EROO Exposure switch was released too early during exposure The most probable cause if the switch really was pressed firmly during the whole exposure is a bad exposure switch or faulty spiral cable or interconnection cable The signal from the switch can be viewed in the service mode for easier faultfinding The signal goes from the switch to the remote control box and from here to
10. F 28 Sophie Mammography X ray unit Technical Manual Chapter F ADJUSTMENT amp CALIBRATION MECHANICAL ADJUSTMENTS 5 3 X ray beam adjustment Toshiba E7272 X ray tube Preparations a Drive the C arm to the upright position turn off the power b Remove the necessary covers see chapter H section 1 Remove the collimator cover see chapter H section 1 7 C Check that the cassette is firmly in position Perform the cassette table adjustment if needed see Cassette table size identification switches on page F 61 X ray beam adjustment a Loosen the collimator screws Fig F 2 1 and pull the collimator assembly to the front at the TUBEHEAD Fig F 2 2 to make sure that the X ray beam reaches over the cassette table front edge Fig F 2 3 b The final adjustment of the X ray beam front edge is performed with the stationary collimator primary front edge Fig F 2 4 Im Figure F 2 Technical Manual Sophie Mammography X ray unit F 29 Chapter F ADJUSTMENT amp CALIBRATION MECHANICAL ADJUSTMENTS Adjustment procedure using the fluorescent screen CAUTION Protect yourself from radiation when taking an exposure Turn on the power Adjust the cassette table for a large cassette Place the fluorescent screen on t
11. Maximum line current Maximum 22 Amperes at absolute minimum stated mains voltage 187V Technique factors that constitute the maximum line current condition 33kV 97mA Generator rating and duty cycle 3 2kW The duty cycle and wait period can be calculated using the following formulas Wait period Tw kV mA exp Time 500W e Duty Cycle 1 1 kV mA 500W Maximum deviation of peak tube potential from indicated value 2kV Maximum deviation of tube current from indicated value 5mA large focal spot x1mA small focal spot Maximum deviation of exposure time tube current product from indicated value 4mAs or 10 whichever is larger Maximum deviation of exposure time from indicated value 5 Definition of measurement criteria Exposure time The beginning and end points of the exposure time are defined at 70 of the peak radiation waveform measured with a calibrated x ray monitor Peak tube potential Is defined as the measured high voltage mean value measured with a calibrated non invasive kVp meter Tube current Is defined using the resistance and voltage over the feedback resistor measured with a calibrated multimeter The mA value is then the voltage divided by the resistance mAs product Is defined as the product of the exposure time and the tube current measurements Technical Manual Sophie Mammography X ray unit A 13 Chapter A GENERAL amp TECHNICAL DATA USER S STATEMENT FOR PLANMED SOPHIE
12. Figure F 30 Technical Manual Sophie Mammography X ray unit F 55 Chapter F ADJUSTMENT amp CALIBRATION ADJUSTING SENSORS amp SWITCHES Rotation to extreme left 135 a Drive the C arm to the 135 position with field light keys Fig F 31 1 Check that the right upper signal on the display Fig F 31 2 lights when the C arm is in the position slightly over 135 but the worm screw nut does not hit the spacer b If this does not happen adjust the position of the Rotation upper limit sensor Fig F 31 3 Check the rotation and readjust if needed Classic C arm up sens 110697 Figure F 31 F 56 Sophie Mammography X ray unit Technical Manual Chapter F ADJUSTMENT amp CALIBRATION ADJUSTING SENSORS amp SWITCHES C arm at upright a See instructions described in chapter F section 3 3 b Checkthat the right middle signal Fig F 32 1 on the display light when the C arm is in the upright position 10 10 10 06 kg ClassicC arm rot lim sen 110697 back view Figure F 32 Check after adjustments that the worm screw nut has a fr
13. Figure F 7 Checking the cleanness of the filters 8 Filter 1 Place a loaded large cassette on a cassette table Select 25 kV AEC filter 1 small focal spot Take an exposure and develop the film Check the exposed area Clean the filter if needed use soft cloth moistened with alcohol con taining preparation e g Solventol If the cleaning does not improve the image quality change the filter ladder assembly Technical Manual Sophie Mammography X ray unit F 33 Chapter F ADJUSTMENT amp CALIBRATION MECHANICAL ADJUSTMENTS b Filter 2 e Place a loaded large cassette on a cassette table e Select 30 kV AEC filter 2 small focal spot Take an exposure and develop the film e Check the exposed area Clean the filter if needed use soft cloth moistened with alcohol con taining preparation e g Solventol e If the cleaning does not improve the image quality change the filter ladder assembly c Spot collimator e Place a loaded large cassette on a cassette table e Select 25 kV AEC spot collimator small focal spot Take an exposure and develop the film e Check the exposed area Clean the filter if needed use soft cloth moistened with alcohol con taining preparation e g Solventol e If the cleaning does not improve the image quality change the filter ladder assembly F 34 Sophie Mammography X ray unit Technical Manual MECHANICAL ADJUSTMENTS Chapter F ADJUSTMENT amp CALIBRATIO
14. a Enter the service mode and select the display of internal signals mode 07 Fig F 24 1 b Drive the upper compression paddle mechanism with the field light keys Fig F 24 2 so that only the right middle signal is lit Fig F 24 3 c Adjust the paddle tilting sensitivity with the holding screw Fig F 24 4 The paddle should be released by pushing it lightly d Adjust the height of the spring holder screw to 9mm Fig F 24 5 e Adjust the distance between the spring holder screw and the releasing plate to 2 3mm Fig F 24 6 f Drive the upper compression paddle mechanism upwards so that both the right upper and the right middle signals are lit Fig F 24 7 The distance between the upper compression paddle mechanism and the upper mechanical limit must be 3 5mm Fig F 24 8 g Move the upper compression paddle mechanism to the mechanical limit by rotating the bearing screw Fig F 24 10 The trigger Fig F 24 11 must still be movable Adjust trigger 250997 07 10 KD Figure F 24 NOTE Wrong adjustment of the spring holder screw Fig F 24 5 may cause the twincomp latch assembly to hit and damage the bracket s edge Fig F 24 9 F 50 Sophie Mammography X ray unit Technical Manual Chapter F ADJUSTMENT amp CALIBRATION ADJUSTING SENSORS amp SWITCHES h The backlash in the paddle holders Fig F 25 1 normal position is removed by
15. e For mAs values that are less than 40mAs the measured mAs values must be within 3mAs of the pre selected mAs values e For mAs values that are more than 40mAs the measured mAs values must be within 8 of the pre selected mAs values Technical Manual Sophie Mammography X ray unit E 9 Chapter E PREVENTIVE MAINTENANCE OTHER PREVENTIVE CHECKS 3 6 Verifying x ray beam alignment Applicable measurement instruments and tools 18x24 cm Kodak Min R Film cassette 24 x 30 cm Kodak Min R Film cassette 18 x 24 cm Mammographic x ray film 24 x 30 cm Mammographic x ray film 30 cm Ruler Fluorescent screen Planmed special screen Preparation for measurement Place the fluorescent tool on the image receptor support as you would place a normal large cas sette Measurement procedure using the fluorescent screen a E7272 tube Select 20 kV 50 mAs E7290 tube Select 20 kV 100 mAs Adjust the field size to its maximum using the size adjust buttons on the control panel of SOPHIE Turn off the lights in the room b Take an exposure and check that the yellow area that can be seen on the fluorescent screen is symmetrical and stays within tolerances c Remove the tool and adjust the support for a small cassette Place the fluorescent tool back on the image receptor support as you would place a normal small cassette d Take an exposure and check that the yellow area that can be seen on the fluorescent screen is symm
16. 2 ene kets Rebate a eee ERA ge ee Pa eS H 7 2 SOFTWARE VERSION UPDATING ee eee H 8 2 1 Replacing software chips llle I H 8 3 REPLACING FUSES 4L ata cewek arn eee eat tee nnns H 10 3 1 Mains fuses coco eee bee een oe ede Pe pI EO ee H 10 3 2 Power supply fuses oarra tenre urapa aa Wes R9 EG Ae Sia eee eR ee H 10 4 LIGHTFIELD BULB REPLACEMENT H 12 5 REPLACING THE X RAY TUBEHEAD leessss H 13 5 1 Preparations before changing the tubehead 0000000 cee eee H 14 5 2 Removal of the tubehead 0 eee ne H 17 6 REPLACING THE POWER SUPPLY H 18 7 REPLACING CIRCUIT BOARDS sees H 19 7 1 Location of PC boards 0 0 ete tte H 19 7 2 Boards in the base amp column 6 eee H 20 7 3 G arm pc boardsSs ez sss asa E Aa BIG Wade pea H 20 7 4 Tubehead assembly boards ssslseeee nee H 22 7 5 Keyboards amp displays 0 cece nee H 22 8 REPLACING SENSORS amp SWITCHES H 23 8 1 Placement of sensors amp switches 20 0 eee eee H 23 8 2 Limit Serisors xe ee DP RI WES UR EDUEN TT H 24 8 3 Lift motor rotation sensor replacement l i H 24 8 4 C arm motor rotation sensor replacement 000 eee ee H 25 8 5 MAG motor rotation sensor replacement 0 00 eee eee H 25 9 MOTOR REPLACEMENT seen mnn nnn H
17. G 02 Collimator electric 290997 Figure G 3 FILTER MIRROR Technical Manual Sophie Mammography X ray unit G 5 Chapter G TROUBLESHOOTING amp FAULTFINDING MECHANICAL PROBLEMS 4 MECHANICAL PROBLEMS 4 1 Paddle holder related a CASSETTE TABLE SIZE IDENTIFICATION Enter the service mode see How to enter exit the service mode on page C 4 and select the internal signals mode 08 see Diagnostic display of internal signals on page C 10 e f some of the signals on the display does not light check the condition of the corresponding microswitch e Check the microswitch indicator LEDs on the SHELF COLLECTOR PCB B large cassette S small cassette G 08 Mag load electrical 290997 Figure G 4 e If the LEDs on the SHELF COLLECTOR PCB have lit but the display signals do not light the failure is between the SHELF COLLECTOR PCB 1 and the TUBE CPU 2 or in them Turn off the unit and measure the resistances of wires given in table below If needed check all the lines between the SHELF COLLECTOR PCB and TUBE CPU If the signals are OK but the signals on the display do not lit change the TUBE CPU FROM TO Shelf Collector PCB Tubehead interface cable Connector Pin Connector Pin P6 1 GND P1 A13 P6 2 CDBL P1 A12 P7 1 GND P1 A13 P7 2 CDSL P1 C 12 G Sophie Mammography X ray unit Technical Manual Chapter G TROUBLESHO
18. GENERAL amp TECHNICAL DATA TECHNICAL SPECIFICATIONS TOSHIBA E7272 X RAY AUTOMATIC EXPOSURE CONTROL AEC Sensors three selectable large area solid state sensors Density adjustment 15 density steps 1396 change in OD per step plus fine adjustment 5 steps 0 05 OD per step Function modes Normal AEC Advanced AEC AAEC C ARM Rotation motorized range 135 to 180 Vertical movement motorized range 795mm to 1350mm 31 3in to 53 1in SID 650mm Compression fully motorized variable speed variable angle twincomp Cassette sizes 18 x 24cm and 24 x 30cm Magnification motorized variable range from 1 3 to 1 8 MECHANICAL DATA Dimensions H x D x W 1000 x 900 x 755 mm minimum 36 6 x 35 0 x 29 7 inch minimum Weight 160kg 352lbs unpacked Color RAL 9016 A Sophie Mammography X ray unit Technical Manual Chapter A GENERAL amp TECHNICAL DATA USER S STATEMENT FOR PLANMED SOPHIE TOSHIBA 7 USER S STATEMENT FOR PLANMED SOPHIE TOSHIBA E7272 X RAY TUBE Radiation leakage technique factors The maximum rated peak tube potential is 35 kVp and the maximum rated continuous tube cur rent is 3 bmA for the maximum rated peak tube voltage Minimum filtration The Beam limiting device contains three different filtrations 30um molybdenum 25um rhodium and 0 50mm aluminum The measured half value layers are 0 343mmAI 0 373mmAI and 0 377mmAIl at 30kVp These measured values correspond to aluminum equivalents of 0 55 0
19. h Replace the removed parts in reverse order i Turn on the power and check that the bulb adjustment see section Light field beam adjustment on page F 42 before replacing the covers H 12 Sophie Mammography X ray unit Technical Manual Chapter H PARTS REPLACEMENT amp REPAIR REPLACING THE X RAY TUBEHEAD 5 REPLACING THE X RAY TUBEHEAD The spare tubehead is shipped without the collimator or power supply from the factory If you need to replace also these please order them separately The replacement of the tubehead can be performed easier if you have a special locking device With this device the replacement can be made in this same upright position otherwise the C arm must be tilted to slightly more that 90 to prevent the cassette table mechanism from falling out NOTE There are no field serviceable parts inside the tube head NEVER open the tubehead cover or its fixing screws it would void the warranty and cause the oil to leak out If there is a problem with the x ray tube the whole tubehead must be changed CAUTION Removing the Magnification motor during this procedure loosens the cassette table mechanism The whole mechanism can fall out Extreme caution is needed to prevent injuries or harm to the equipment Figure H 14 Technical Manual Sophie Mammography X ray unit H 13 Chapter H PARTS REPLACEMENT amp REPAIR REPLACING THE X RAY TUBEHEAD 5 1 Preparations before changing the tub
20. knob to the MEASURE position and the MODE SELECTOR knob to the EXPOSURE position Allow it to stabilize for some minutes Select filter 1 30 um Mo large focus manual exposure mode 27 kV 50 mAs and perform 10 exposures to warm up the X Ray tube Measurement Procedure e Turn the FUNCTION SELECTOR knob to HOLD and back to MEASURE to clear the display o Take an exposure and record the mR reading a oa Turn the FUNCTION SELECTOR knob to HOLD and back to MEASURE to clear the display Select small focal spot 27 kV 10 mAs Take an exposure and record the mR reading D Rejection Limit Compare both large and small focal spot radiation readings to the readings that were measured when the equipment was first taken into use If the current values are less than 70 of the initial values the tube radiation output has lowered so much that a tube replacement is recommended If no earlier readings are available the radiation readings should exceed 500 mR for large and 100 mR for small focal spot 2 5 Focal spot size measurement Applicable measurement instruments and tools Victoreen Model 07 542 Star X Ray Test Pattern 1 Preparation for measurement Drive Sophie to CC projection and place a loaded film cassette in place Select proper exposure factors to achieve right film density for example AEC mode on and select for 22 kV Measurement Procedure Please follow the operating instru
21. Note that the hood should be removed if the place of the Rotation lower limit sensor is adjusted F 54 Sophie Mammography X ray unit Technical Manual Chapter F ADJUSTMENT amp CALIBRATION ADJUSTING SENSORS amp SWITCHES b Check that the Rotation mechanical limits Fig F 29 1 2 are in their positions Classic Rot mot mech lim 110697 c Enter the service mode and select the display of internal signals mode 06 see SERVICE MODE FUNCTIONS SHORT FORM on page C 4 Fig F 30 1 Figure F 29 Tubehead against floor 180 transportation position a Drive the C arm to the transportation position with field light keys Fig F 30 2 Check that the right lower signal on the display Fig F 30 3 lights when the C arm reaches the vertical position b The C arm is must be slightly over 180 position before the right lower signal lights adjust the position of the Rotation lower limit sensor Fig F 30 4 if needed Check the C arm rotation and readjust if needed ClassicC arm low lim sen 110697
22. PARTS REPLACEMENT amp REPAIR on page H 1 This chapter contains detailed instructions how to replace both mechanical and electrical parts It also reminds of what possible calibrations or adjustments must be performed after replacing par ticular parts SCHEMATICS amp DIAGRAMS on page I 1 This chapter contains electrical wiring diagrams and schematics A 4 Sophie Mammography X ray unit Technical Manual Chapter A GENERAL amp TECHNICAL DATA TECHNICAL SPECIFICATIONS TOSHIBA E7272 X RAY 6 TECHNICAL SPECIFICATIONS TOSHIBA E7272 X RAY TUBE ORIGINAL MANUFACTURER PLANMED Oy Asentajankatu 6 00810 Helsinki FINLAND phone 358 9 7590 5300 fax 358 9 7590 5555 MODEL AND APPROVALS MODELS PLANMED SOPHIE PLANMED SOPHIE MOBILE APPROVALS IEC safety class IEC degree of protection B IEC enclosure class IP20 Complies with IEC 601 1 safety and IEC 601 2 7 radiation regulations X RAY TUBE ASSEMBLY X ray tube Anode type Anode braking Anode thermal capacity Anode target material Anode target angle Tube port material Focal spot sizes Filtration Generator Anode voltage range Anode current range 0 3mm focus Anode current range 0 1mm focus mAs range 0 3mm focus mAs range 0 1mm focus Exposure time 0 3mm focus Exposure time 0 1mm focus Cooling Line voltage Line voltage compensation Line voltage regulation Fuses Total power consumption Power factor Mode of operation Maximum mains res
23. Sensors Density adjustment Function modes C ARM Rotation Vertical movement SID Compression Cassette sizes Magnification MECHANICAL DATA Dimensions Weight Color three selectable large area solid state sensors 15 density steps 1396 change in OD per step plus fine adjustment 5 steps 0 05 OD per step Normal AEC Advanced AEC AAEC motorized range 135 to 180 motorized range 795mm to 1350mm 31 3in to 53 1in 650mm fully motorized variable speed variable angle twincomp 18 x 24cm and 24 x 30cm motorized variable range from 1 3 to 1 8 H x D x W 1000 x 900 x 755 mm minimum 36 6 x 35 0 x 29 7 inch minimum 160kg 352lbs unpacked RAL 9016 A 12 Sophie Mammography X ray unit Technical Manual Chapter A GENERAL amp TECHNICAL DATA USER S STATEMENT FOR PLANMED SOPHIE TOSHIBA 9 USER S STATEMENT FOR PLANMED SOPHIE TOSHIBA E7290 X RAY TUBE Radiation leakage technique factors The maximum rated peak tube potential is 35 kVp and the maximum rated continuous tube cur rent is 3 5mA for the maximum rated peak tube voltage Minimum filtration The Beam limiting device contains three different filtrations 30um molybdenum 25um rhodium and 0 50mm aluminum The measured half value layers are 0 343mmAI 0 373mmAI and 0 377mmAIl at 30kVp These measured values correspond to aluminum equivalents of 0 55 0 65mmAl Rate line voltage 208 240V 10 Line voltage regulation 10
24. There is an open circuit between the AEC sensor board in the cassette table and the TUBE CPU Check for any pinched or broken wires especially if you have been working inside the cassette table were the AEC board is located ER17 Bias values for normal and small focus are not selected This error can occur after replacing the TUBE CPU board or if the filament preheating voltage initialization procedure was not finished properly Please refer to X ray tube filament preheating voltage calibration on page F 14 for details how to perform the calibration ER18 kV fine adjustment parameters in TUBE CPU differ from the parameters in REAR CPU Both the REAR CPU and the TUBE CPU contain the kV fine adjustment parameters If parame ters in one CPU differ from parameters in the other this error message occurs when the unit is switched on Entering the kV fine adjustment mode sets the parameters the same in both CPU s See para graph kV value fine adjustment on page F 16 for detailed instructions You do not have to change the parameter values but it is recommended to confirm that the values correspond to the current circumstances 4 3 ERRORS 20 29 motion and compression related These errors are related to monitoring the movement of all motorized mechanisms The time out means that a motor driven mechanism doesn t reach a position hall sensor within a specified time This time out function ensures that the motor is turned off in case o
25. can be found on the labels on the tube assembly and also on the original C arm top cover These bias parameters for tube type C determines one for each focus size the correct voltage to the internal bias grid to guarantee the optimum and safe size of the focal spot Entering the filament voltage calibration mode all tube types a b In the SERVICE mode press the CTL key and then press and hold the filtration spot key for 3 seconds The currently selected tube type is displayed in the density display If tube type is wrong select the tube type with the field light keys from these two possibilities e A TOSHIBA E7236 tube C TOSHIBA E7272 tube d TOSHIBA E7290 tube E TOSHIBA E7290 tube Generator type selection tube type A or C When the filament voltage calibration mode is entered the text GE is shown on the time force display Press the density down key to select the generator type The text in the time force display starts to flash Use the field light keys to select the right generator e GE 1 new generator blue e GE 0 old generator black F 14 Sophie Mammography X ray unit Technical Manual Chapter F ADJUSTMENT amp CALIBRATION KEYBOARD CONTROLLED in service mode Presets that must be set for tubes type C d and E a Thecurrently set bias value for the normal size focus is displayed on the mA display If the value is wrong press the mAs UP key and then use the field light key
26. could come loose and the gas spring could extend rapidly causing injury or dam age Adjust the tension adjuster only when the arm is upright in CC proj The gas spring must be pushing not pulling Lower locking nut normal thread Lower pivot axle at other end of Fixing nut gas spring dont open not shown Gas spring Technical Manual Sophie Mammography X ray unit F 43 Chapter F ADJUSTMENT amp CALIBRATION ADJUSTING SENSORS amp SWITCHES 6 ADJUSTING SENSORS amp SWITCHES The adjustment of sensors and switches and checking their operation is fairly simple especially when using the displays provided by the special service mode Fig F 18 see Diagnostic dis play of internal signals on page C 10 how to enter these Most of the signals have also respec tive diagnostic LED indicators on the so called collector PC boards Display signals Tie i Right upper Left middle 23 00 Right middle 2 M Left lower d Right lower Figure F 18 Left upper 6 1 Collimator mechanism limit sensors The instructions for initial adjustments of mirror filter and collimator are given in this section The final adjustment is performed according to the instructions given in chapter F sections 4 3 and 4 4 Preparations a Drive the C arm to the upright position turn off the power b Remove the C arm covers see chapter H section 1 4 c Remove the collimator cover see
27. functions is either automatic or done by pressing again the CTL key see details in table below USER MODE FUNCTIONS SHORT FORM Table 10 Special user settings USER MODE FUNCTION KEY SEQUENCE FOR DETAILS PLEASE REFER TO AUTOMATIC kV MODE gt gt ED D gt Co Automatic kV mode on page F 3 AUTOMATIC RHODIUM MOLYB DENUM FILTER SELECTION MODE Or OD gt CD GD gt hold for 2 seconds Automatic rhodium molybdenum fil ter selection mode on page F 3 DEFAULT 5 Default magnification factor on MAGNIFICATION Ceo C9 d gp Cen page F 4 FACTOR AUTOMATIC Automatic release of compression RELEASE OF Cm after exposure on page F 4 COMPRESSION INITIAL Initial descent speed on page F 4 Meme ORO ED GD gt Ce SPEED hold for 3 seconds COMPRESSION Compression speed decrease rate SPEED DECREASE CoD gt gt en on page F 5 RATE hold for 3 seconds STOP LIMIT OF Intermediate compression stopping THE COMPRES gt ge gt force on page F 5 SION FORGE hold for 3 seconds left LAT key C 2 Sophie Mammography X ray unit Technical Manual Chapter C KEYBOARD FUNCTIONS amp MODES USER MODE FUNCTIONS SHORT FORM Table 10 Special user settings Continued USER MODE FUNCTION KEY SEQUENCE FOR DETAILS PLEASE REFER TO TWINCOMP Twincomp compression on off on COMPRESSION Cor gt Ca ge gt Con page F 5 ON OFF hold fo
28. 1 80 page F 4 Automatic release after exposure On page F 4 Maximum compression speed 5 moderate page F 4 Compression retardation ratio 1 small page F 5 Intermediate compression force 10 kg page F 5 Twincomp compression Yes page F 5 Lift motor crawling speed 4 moderate page F 5 Density offset adjustment 0 no offset page F 6 AAEC contrast adjustment 0 normal contrast page F 6 Automatic film labeling On page F BUCKY grid movement On page F 7 Alarm sound frequency loudness 5 moderate page F 7 Technical Manual Sophie Mammography X ray unit F 9 Chapter F ADJUSTMENT amp CALIBRATION KEYBOARD CONTROLLED in service mode Table 5 Service mode parameters affected by the factory default Special system parameters factory default for details setting in this unit 01 Maximum compression force 20 kg page F 17 02 Mode of C arm rotation 0 direct movement page F 17 03 Maximum up down speed 4 moderate page F 17 04 Mode of up down movement 0 not during comp page F 17 05 Auto load function 1 on page F 17 06 Maximum regional mAs limit 1 page F 17 07 Mode of foot control operation 1 outer edge comp page F 17 08 BUCKY grid type 2 Gilardoni page F 17 09 Film screen comb 0 gain 10 normal page F 17 10 Film screen comb 0 steepness 10 normal page F 18 11 Type of label printer 0 Admark or
29. 100 90 90 22 22 16 18 110 110 98 108 93 103 22 22 16 17 25 100 110 90 100 90 90 20 22 16 16 100 110 95 97 90 92 20 22 14 15 26 100 110 90 90 90 90 20 22 16 16 100 110 91 98 89 96 20 22 14 15 27 100 110 80 90 80 80 18 20 14 16 100 110 87 87 83 83 18 20 14 14 28 90 100 80 90 80 80 18 20 14 14 90 100 85 88 79 82 18 20 12 14 29 90 100 80 80 80 80 18 20 14 14 90 100 82 88 78 84 18 20 12 13 30 90 90 80 80 70 70 16 18 12 14 90 90 80 77 79 72 16 18 13 13 31 80 90 70 80 70 70 16 18 12 14 80 90 77 78 73 72 16 18 10 12 32 80 90 70 80 70 70 16 18 12 12 80 90 75 78 69 72 16 18 10 11 33 80 90 70 70 60 60 16 16 12 12 80 90 72 78 67 73 16 16 10 11 34 80 80 70 70 60 60 14 16 12 12 80 80 70 68 65 65 14 16 11 10 35 70 80 60 70 60 60 14 16 10 12 70 80 67 68 64 65 14 16 11 10 7 3 Cooling curves for x ray tube ANODETHERMAL CHARACTERISTICS
30. 14 for details Check the filament resistances 0 5 ohm through the 32 way tubehead connector please refer to the schematics and replace the TUBE HEAD if necessary If the error occurs constantly replace the POWER SUPPLY TUBE CPU TUBE HEAD replace in this order ER33 X ray tube Filament voltage V missing or outside specification The tube filament voltage is sampled periodically by the TUBE CPU and if the actual measured filament voltage differs from the required then this error is displayed Performing the filament def inition to recalibrate the filament voltages could help see X ray tube filament preheating voltage calibration on page F 14 for details The filament power supply inside the POWER SUPPLY could be faulty or that there could be a problem in the filament feedback signals Replace the POWER SUPPLY TUBE CPU TUBE HEAD replace in this order The filament voltage is displayed in the service mode during expo sures in the SEC display ER34 X ray tube Bias voltage V error The bias voltage control circuitry is not able to control the X ray tube grid bias voltage The prob lem is either in the POWER SUPPLY or the TUBE HEAD If this error occurs repeatedly change the POWER SUPPLY and or the TUBE HEAD replace in this order ER35 Mains Sync pulses don t reach the TUBE CPU Check the wires and cables between the two processors please refer to the schematics ER36 Too long exposure gt 10 sec was term
31. 2 1 Preventive maintenance schedule The preventive maintenance inspection must be scheduled by the user of the equipment to be performed by an authorized service representative Checks described in this chapter PREVEN TIVE MAINTENANCE CHECKS on page E 2 must be performed once a year 2 2 Calibration and verification of the instruments The used measurement and test instruments must be calibrated once a year by authorized cali bration officials to ensure long term accuracy E 2 Sophie Mammography X ray unit Technical Manual Chapter E PREVENTIVE MAINTENANCE PREVENTIVE MAINTENANCE CHECKS 2 3 Determining half value layer HVL beam quality Applicable measurement instruments and tools e MDH Model 1515 Radiation monitor MDH Model 1050U Converter MDH Model 10x5 6M lon chamber Aluminum blocks 0 3 x 100 x 100 mm type 1100 alloy Field defining Pb diaphragm 3 x 200 x 200 mm with a 45 mm hole in center Preparations for measurements Remove the compression paddle from the x ray beam Connect the low sensitivity ion chamber 10x5 6M to the converter Place the chamber on the image receptor support so that the chamber is in the centre of the front edge Collimate the x ray beam to restrict the beam to an area slightly larger than the ion chamber Turn on the radiation monitor by rotating the FUNCTION SELECTOR knob to the MEASURE position Select the PULSE EXPOSURE mode from the MODE SELEC
32. 3 Technical Manual Sophie Mammography X ray unit F 23 Chapter F ADJUSTMENT amp CALIBRATION FINE TUNING SOPHIE AEC FOR NONSTANDARD FILM 4 FINE TUNING SOPHIE AEC FOR NONSTANDARD FILM SCREEN COMBINATIONS 4 1 Background Normally the Sophie AEC system functions with good results without any other adjustments than the selection of the appropriate film screen combination and density However sometimes especially with film screen combinations that are nonstandard for Sophie it is necessary to do some additional adjustments to get it track properly These adjustments depend on the nature of the tracking problem 4 2 Testing the AEC for proper tracking If a problem is suspected it is necessary to first make a series of test exposures see example test exposure protocol on page F 27 From these test exposures the service technician must then decide what kind of adjustments should be tried As there are so many variables in the whole imaging chain it is impossible to give firm instructions instead guidelines are provided here If required it is also acceptable to use a test protocol as specified by a customer e g a protocol defined by the local authorities From the test exposures the service technician must determine if the tracking problem is related to specific filter Mo Al or Rh or imaging mode contact bucky or magnification In that case the service modes 34 44 should be used see section Adjusting the f
33. 5 Chapter C KEYBOARD FUNCTIONS amp MODES SERVICE MODE FUNCTIONS SHORT FORM Table 12 Service mode keyboard function short form Continued SERVICE MODE FOR DETAILS PLEASE FUNCTION KEY SEQUENCE IN SERVICE MODE REFER TO AEC SENSOR Gees h AEC sensor calibration n CALIBRATION mode EOL CA p Phan p gt Cen on page F 15 hold for 3 seconds hold until finished DISPLAY OF REAL Service Displaying the real density DENSITY VALUE mode gt 4 gt value on page C 8 EXPOSURE f serice Displaying the exposure COUNTER mode 2 9 gt counter on page C 8 DISPLAY DIAGNOSTIC or Diagnostic display of DISPLAY OF mode CO gt gt Cen internal signals on INTERNAL SIG hold for page C 10 NALS 3 seconds DISPLAY RECENT Service Displaying the recent 49 49 ERROR MES mode gt gt trail gt en error messages on SAGES f o hold for 3 seconds page C 8 left OBL key PRINT RECENT 49 eres hold for 3 seconds Print a list of the recent 49 ERROR MES mode c left OBL key errors on page C 9 SAGES kV VALUE FINE EE GET hold for kV value fine adjustment ADJUSTMENT mode gt 3 seconds on page F 16 C2 9 fei Giai Ca 9 fer Gre C Sophie Mammography X ray unit Technical Manual Chapter C KEYBOARD FUNCTIONS amp MODES SERVICE MODE FUNCTION DETAILS 4 SERVICE MODE FUNCTION DETAILS The following pages in thi
34. 59 voltage 60 voltage 61 voltage 62 voltage 63 voltage 64 breast thickness 65 breast thickness 66 breast thickness 67 breast thickness 68 breast thickness 69 breast thickness 70 breast thickness 71 breast thickness 72 breast thickness 73 breast thickness 74 exposure time 75 exposure time 76 exposure time 77 exposure time F 22 Sophie Mammography X ray unit Technical Manual Chapter F ADJUSTMENT amp CALIBRATION KEYBOARD CONTROLLED in service mode 78 MA limit n 20 mA limit is off Setting in iplb n 1 mA limit is on thisunit 78 n When the mA limit is off the mA value is chosen to be the maximum allowed mA for the selected kV according to the tables shown in sections Toshiba E7272 x ray tube ratings on page A 9 and Toshiba E7290 x ray tube ratings on page A 15 When the mA limit is on the maximum mA value that can be used is 80 mA The factory default is n 0 79 Mode of Mammotool parameters usage n 1 adjustment is used for large focus n 2 adjustment is used for small focus Setting in n 3 adjustment is used for both focus sizes this unit 79 n j kg This feature defines if the correction parameters from the Mammotool software are used for the large focus n 1 the small focus n 2 or both n 3 The factory default is n
35. 65mmAl Rate line voltage 208 240V 10 Line voltage regulation 10 Maximum line current Maximum 22 Amperes at absolute minimum stated mains voltage 187V Technique factors that constitute the maximum line current condition 27kV 110mA Generator rating and duty cycle 3kW The duty cycle and wait period can be calculated using the following formulas Wait period Tw kV mA exp Time 500W e Duty Cycle 1 1 kV mA 500W Maximum deviation of peak tube potential from indicated value 2kV Maximum deviation of tube current from indicated value 5mA large focal spot x1mA small focal spot Maximum deviation of exposure time tube current product from indicated value 4mAs or 10 whichever is larger Maximum deviation of exposure time from indicated value 5 7 1 Definition of measurement criteria Exposure time The beginning and end points of the exposure time are defined at 70 of the peak radiation waveform measured with a calibrated x ray monitor Peak tube potential Is defined as the measured high voltage mean value measured with a calibrated non invasive kVp meter Tube current Is defined using the resistance and voltage over the feedback resistor measured with a calibrated multimeter The mA value is then the voltage divided by the resistance mAs product Is defined as the product of the exposure time and the tube current measurements The nominal x ray voltage together with the highest x ray
36. CAUTION 8 COM GP Dei T O hold for tube type 3 seconds Ca rel Gi large focus bias setting Cz fei Gi small focus bias setting 6 hold until finished exit without programming Some X ray radiation is emitted during this function duration from 60 to 120 seconds even if the light field beam mirror is not driven out of the X ray beam Always shield your self against the radiation Be sure to set the right tube type A C d or E before perform ing the calibration Additionally if the type is C d or E set also the bias values properly Failing to do this could damage the anode of the x ray tube If the type is A or C select the generator type The type is indicated with generator colour the new one is blue and the old one is black With the tube types d and E the new generator is always used Why and when to calibrate This calibration must be performed whenever the TUBEHEAD and or the TUBE CPU alone or together with the POWER SUPPLY is replaced No special tools or instruments are needed for the calibration It is also recommended that this calibration in performed during the annual main tenance of the unit to compensate for any possible changes in the tube parameters Currently there are two tube types in production the tube type in use and bias voltage parame ters for type C d and E must be set before continuing with this filament calibration The tube type data and bias parameters
37. CAUTION Do not rotate C arm in its lowest position when the C arm locking knob is in its place CAUTION Never transport the unit without first driving it down to the transport position Technical Manual Sophie Mammography X ray unit B 5 Chapter B UNPACKING amp INSTALLATION UNPACKING THE UNIT 2 44 Attaching the unit to the floor It is recommended to bolt the unit to the floor The stability of the unit must be checked after installation a Turn off the unit and unplug it from the mains b Remove the base covers see section Base covers on page H 2 c The unit can be bolted either with five A or with three screws B according to the figure below It is recommended to use five screws Note that if you are going to use three fastening screws move the levelling feet from the front side holes to the rear ones A A Use either holes labeled A or holes labeled B Rear Fix0198 eps B 0 o M M B In case you use the holes labelled B z di move the levelling feet from side holes labelled A to side holes labelled B A 73 A 4 Front A B d Levelthe unit if the floor is uneven The unit has small feet in the fastening holes that can be adjusted with an Allen key See figure below Cover strip C arm locking knob Level the unit e Use the base as a template and mark the posit
38. COMPATIBILITY 4 SOFTWARE REVISIONS amp COMPATIBILITY Background Since this unit is fully microprocessor controlled its operation is controlled by the currently installed software PLANMED reserves the right to improve functionality or to add new features to the product by modifying the software and or hardware Manuals are updated accordingly and technical bulletins published in order to inform about these changes or additions Hardware compatibility As a general rule new software releases are compatible with all existing hardware New software releases or possible upgrading kits containing new software are normally directly compatible with existing hardware but not necessarily without some re calibration procedures Software numbering amp compatibility Since the unit contains two communicating microprocessors these must be able to understand each other Incompatible software versions should never be used together the unit would either be totally non functional produce continuous error codes or some important features or functions could be missing However no damage or safety hazard would result if two non compatible software chips are accidentally used together The following table contains information about compatible software versions Use versions together only as listed in this table Table 1 SOFTWARE COMPATIBILITY LIST REAR CPU _ TUBE CPU REAR CPU TUBE
39. If you are using the locking device make sure that it is correctly positioned Remove the MAG LOAD motor Fig H 17 3 When unscrewing the bearing holding bracket screws Fig H 17 4 make sure that the Allen key used is in good condition since the screws are locked with Loctite 222 glue If needed the screws can be warmed up with the hot air blower p Pullthe ball screw assembly Fig H 17 5 from the tubehead q Remove the cable guide screw Fig H 17 6 H 16 Sophie Mammography X ray unit Technical Manual Chapter H PARTS REPLACEMENT amp REPAIR REPLACING THE X RAY TUBEHEAD 5 2 Removal of the tubehead Figure H 18 a Make sure that the tubehead is freed from any attached parts b Loosen the four screws that fixes the tubehead cast to the two shafts Fig H 18 1 c Carefully pull the tubehead out from the shafts d Place the new tubehead to its position e Tighten the four tubehead screws Fig H 18 1 f Replace the removed parts in reverse order Secure the bearing holding bracket screws with the Loctite 222 glue g Turn on the power h Perform the checks described in chapter E sections 3 1 3 7 Technical Manual Sophie Mammography X ray unit H 17 Chapter H PARTS REPLACEMENT amp REPAIR REPLACING THE POWER SUPPLY 6 REPLACING THE POWER SUPPLY a Drive the C arm to upright position Remove the C arm covers see section C arm covers on page H 4
40. LED on the COLLIMATOR PCB lights as well as the right middle signal on the display Fig F 20 4 if the mirror magnet reaches the hall sensor c Press and hold down the left field light key Fig F 20 3 The mirror rotates to its initial position Release the key when the position is reached Classic Coll mirror limit140497 Figure F 20 Mechanical checking and adjustment The mirror may not hit the collimator frame adjust the mirror magnet holder Fig F 20 5 if needed The final adjustment of the mirror position is performed according to instructions described in chapter F section 4 4 F 46 Sophie Mammography X ray unit Technical Manual Chapter F ADJUSTMENT amp CALIBRATION ADJUSTING SENSORS amp SWITCHES Classic Coll Coll limit 140497 COLLIMATOR Checking the limit sensor adjustment a Enterthe service mode and select the display of internal signals mode 02 Fig F 21 1 b Pressing the filed light keys Fig F 21 2 3 drive the moving collimator to the hall sensor and check that the indicator LED on the COLLIMATOR PCB lights as well as the right middle signal Fig F 21 4 on the display Mechanical checking and adjustment The collimator worm screw nut may not hit the collimator lower frame or stick to the beginning of the worm screw arrows To prevent this adjust the collimator magnet holder Fig F 21 5 in up down direction The final adjustment of the collimator positions is performed accordi
41. MAG motor is rotating even if not commanded or spurious pulses from MAG motor rotation sensor Er45 Lift motor is rotating even if not commanded or spurious pulses from Lift motor rotation sensor Er46 No pulses from Lift motor rotation detector or motor does not rotate even if commanded Er47 Mains frequency out of range 45 65 Hz or failure in frequency measurement circuitry Er48 Failure in the STEREOTACTIC device stepper motor or its control circuitry or in the rotation sensors Er49 The STEREOTACTIC device shelf is not at the end position sensor or a failure in the sensor Er50 Tube head assembly temperature sensor short circuit Er51 Tube head assembly temperature sensor open circuit Er52 Filament voltage feedback open circuit Er53 Power supply heatsink temperature sensor short circuit Er54 Power supply heatsink temperature sensor open circuit Er55 C arm rotation reference sensor failure Er56 Compression mechanism release limit sensor failure during calibration Er57 Exposure switch failure short circuit or pressed during self test Er58 Foot control switch failure short circuit or pressed during self test Er59 Failure in internal emergency STOP system Technical Manual Sophie Mammography X ray unit D 5 Chapter D HELP AND ERROR MESSAGES ERROR MESSAGES SHORTFORM TABLE Table 14 Error Codes Short Form Table Continued
42. PARTS REPLACEMENT amp REPAIR REMOVING amp REPLACING COVERS 1 1 Base covers a Baserear cover e Unscrew the rear cover assembly screws 4 pcs Fig H 2 1 e Disconnect the rear cover assembly ground cable Fig H 2 2 from the base e Disconnect the remote control cable Fig H 2 3 and the main filter output cable Fig H 2 4 from the Base PCB Fig H 2 5 Figure H 2 b Base front cover plate and side cover plates Remove the front cover plate by pulling it outwards e g with a screwdriver Fig H 3 1 Remove the side cover plates by lifting them carefully upwards Fig H 3 2 plate98 eps front98 eps Figure H 3 1 2 Telescopic column covers Hood bottom cover plates 2 pcs Fig H 4 1 a Remove the plate screws 4 pcs b Disconnect the bottom plate ground cable from the hood support arm C The plate can now be removed H 2 Sophie Mammography X ray unit Technical Manual Chapter H PARTS REPLACEMENT amp REPAIR REMOVING amp REPLACING COVERS Telescopic column rear panel Fig H 4 2 a Remove the cover screws 8 pcs b Thecover can be removed Telescopic column front cover Fig H 4 3 a The hood bottom cover plates and stationary column rear panel must first be removed b Remove the four screws that hold the front cover to the hood support arms and the two screws on each side of the unit C Lower the cover slightly and remove it 1 3 Stat
43. SHORT FORM 00000eeuueae C 2 2 1 Normal user functions 0 0 0 0 eee RR n C 2 2 2 Special user settingS a rpa aae ana tte eens C 2 3 SERVICE MODE FUNCTIONS SHORT FORM C 4 3 1 How to enter exit the service mode 0 0 0 cee eee C 4 Technical Manual Sophie Mammography X ray unit TOC 1 TABLE OF CONTENTS 3 2 Meaning of displays in the service mode 0 0 ee eee eee C 4 3 3 Service mode settings amp special displays liliis C 5 4 SERVICE MODE FUNCTION DETAILS lesse C 7 4 1 Transport positlon x aeri t bsesnnveenprmieregnAqgoUe beeen Vee gala C 7 4 2 Display of internal temperatures llle C 7 4 3 Displaying the real density value lseleee e C 8 4 4 Displaying the exposure counter n sasssa cee eh C 8 4 5 Displaying the recent 49 error messages 00 e eee eee eee C 8 4 6 Print a list of the recent 49 errors 0 eee C 9 4 7 Ignore errors temporarily 2 0 IRI C 9 4 8 Diagnostic display of internal signals 20 0 cee ete C 10 Chapter D HELP AND ERROR MESSAGES 1 GENERAL ABOUT ERROR DISPLAYS s D 1 1 1 Stop message 2 cio PE cte EE E IEEE ERE RIS D 1 1 2 Help messages isse RR eee heme pe RU ET geet D 1 1 3 Error messages enn TIL acc kB Sa ew RM EGGS Gap RE D 1 HELP MESSAGES SHORTFORM TABLE D 2 ERROR MESSAGES SHORTFORM TABLE
44. TOSHIBA The nominal x ray voltage together with the highest x ray tube current obtainable from the high voltage generator when operated at its nominal x ray tube voltage 35kV 91mA large focal spot 35kV 28mA small focal spot The highest x ray tube current together with the highest x ray tube voltage obtainable from the high voltage generator when operated at its highest x ray tube current 110mA 29kV large focal spot 35mA 28kV small focal spot The x ray tube voltage and x ray tube current which result in the highest electric output power 33kV 97mA large focal spot 31kV 32mA small focal spot The nominal electric power for a load time of 0 1s and at the nominal x ray tube voltage 35kV 91mA 3185W large focal spot 35kV 28mA 980W small focal spot Reference current time product large focal spot for all kV values 40mA 0 1s 4mAs small focal spot for all kV values 10mA 0 1s 1mAs The lowest current time product within the specified range of compliance large focal spot 30mA 0 1s 3mAs small focal spot 10mA 0 1s 1mAs The nominal shortest irradiation time in the AEC mode 20ms A 14 Sophie Mammography X ray unit Technical Manual Chapter A GENERAL amp TECHNICAL DATA USER S STATEMENT FOR PLANMED SOPHIE TOSHIBA 9 1 Toshiba E7290 x ray tube ratings Manual exposures With manual exposures the tube kV and mAs can be selected by the user In order to keep the exposure times at minim
45. Use the field light keys to change the setting The range is from 1 slowest to 6 fastest Press the CTL key to exit This key sequence sets the maximum speed of the compression paddle during compression down movement The time force display shows the current setting The factory default is 5 Using the fastest speed when familiar with the unit is recommended NOTE The setting 0 zero should and can be used only if the compression force measurement is inoperative In this mode the force measurement is totally ignored Compression starts at a moderate speed and continues only at crawling speed after the compression movement is shortly interrupted by releasing the control switch F 4 Sophie Mammography X ray unit Technical Manual Chapter F ADJUSTMENT amp CALIBRATION KEYBOARD CONTROLLED in normal mode 2 6 Compression speed decrease rate OORO ka hold for 3 seconds Press the CTL key and the press and hold the right mAs key for 3 seconds Use the field light keys to change the setting The range is from 1 small ratio speed decreases only a little to 6 large ration speed decreases a lot Press the CTL key to exit This key sequence set the ratio of the compression speed reduction related to the compression force The time force display shows the current setting The factory default is 4 2 Intermediate compression stopping force CO CD FO Seting n hold for 3 seconds left
46. and also the tube head serial number 5 2 How to report image quality problems Please record the circumstances where or when the problem occurred used cassette type used film type film processor type type of developer liquids used and any other relevant data 5 3 How to contact Planmed head office e Phone intl 358 9 7590 5500 e Fax intl 358 9 7590 5555 e Address Asentajankatu 6 00810 HELSINKI FINLAND G 8 Sophie Mammography X ray unit Technical Manual Chapter H PARTS REPLACEMENT amp REPAIR 1 REMOVING amp REPLACING COVERS CAUTION The unit contains hazardous voltages Always disconnect the unit from the mains by removing the plug from the wall outlet and wait for 2 minutes before starting to remove covers To be able to access inner parts some covers must be removed in a particular order All the cov ers are shown in Fig H 1 and these are referred to by these names in the texts an descriptions in this manual Hood C arm top cover Telescopic column rear panel C arm right side panel Center fram EN cover plate auna column rear panel Hood bottom 3 cover plate 2 Stationary column fear cover 8 Sy C arm lower cover Bs i G window NI Support plate Telescopic column Base side cover plate 2 front cover Base rear cover 2 E C arm left side panel Base front cover plate Figure H 1 Technical Manual Sophie Mammography X ray unit H 1 Chapter H
47. and pressing the EXPOSURE switch erases the previous calibration results This makes the AEC system inoper able until the calibration is performed to the end Performing the AEC calibration a Remove all obstacles between the AEC sensor surface and the tube head including ALL compression paddles cassette and any other objects that would obstruct the beam b Place the test phantom directly on the AEC sensor surface on the black area at the front of the cassette table Select filter 1 30um Mo c Being in SERVICE MODE press the CTL key and then press and hold the sensor key for 3 seconds Go to the exposure switch and stand behind the radiation shield d Press and hold the EXPOSURE switch until the series of exposures ceases Press the CTL key to exit Releasing the switch during the calibration cycle is allowed as the calibration continues when the switch is again activated The cycle must be completed otherwise the AEC system could later produce ERROR messages ER14 or ER15 e If one of the 3 sensors is faulty the unit would produce an error The calibration can however be continued by clearing the error using the CTL key and continuing the cycle Only those sensors that are calibrated properly can be used during AEC exposures CAUTION Radiation is emitted during the whole calibration cycle duration 30 sec Always shield yourself again unnecessary radiation Technical Manual Sophie Mammography X ray unit F 15 C
48. automatically selected when the magnification mode is selected 30 AEC optical density selection n 0 optical density is 1 2 factory preset Te 30 n kg n 1 optical density is 1 6 M 31 Sophie Sophie CLASSIC selection n 0 SOPHIE software factory preset Tm 31 n kg n 1 SOPHIE CLASSIC software eae The text SOP Sophie or CLA Sophie Classic is shown briefly on the breast thickness display when switching on the unit 32 Filter selection in the spot mode n 0 The spot collimator is selected indi 32 n kg when the spot mode is chosen Und this unit factory preset n 1 The molybdenum filter is selected when the spot mode is chosen The breast thickness read out is adjusted for the spot paddle 33 Intermediate compression stopping force offset with the twincomp compression n Intermediate compression stopping force Setting in 33 n kg offset with the twincomp compression this unit range 0 5 kg The factory default is n 0 The intermediate compression stopping force when the twincomp compression is used is the compression force with the normal compression plus this offset value Setting the compression force with the normal compression is described in section Intermediate compression stopping force on page F 5 Sophie Mammography X ray unit Technical Manual Chapter F ADJUSTMENT amp CALIBRATION KEYBOARD CONTROLLED in
49. cause this error to occur especially at higher mA settings Try to perform the fil ament definition procedure If this doesn t help and the error occurs constantly replace the POWER SUPPLY TUBE CPU and or TUBE HEAD replace in this order ER31 X ray tube Anode current mA missing or too low The tube current is sampled periodically by the TUBE CPU and if the actual mA value is lower than the setting then this error is displayed Proceed with the filament definition see paragraph X ray tube filament preheating voltage calibration on page F 14 for details An open circuit inside the tubehead in the filament circuit could also produce this error Check the filament resis tances 0 5 ohm through the 32 way tubehead connector please refer to the schematics Check also the mA feedback resistance through this same connector If the error occurs con stantly replace the POWER SUPPLY TUBE CPU TUBE HEAD replace in this order D 12 Sophie Mammography X ray unit Technical Manual Chapter D HELP AND ERROR MESSAGES DETAILED ERROR MESSAGE EXPLANATIONS ER32 X ray tube Anode current mA too high The tube current is sampled periodically by the TUBE CPU and if the actual measured mA value is above the setting the error occurs If the filament preheating voltage is incorrect it could cause this error to be displayed Proceed with the filament definition see paragraph X ray tube filament preheating voltage calibration on page F
50. chapter H section 1 7 d Turn the power on F 44 Sophie Mammography X ray unit Technical Manual Chapter F ADJUSTMENT amp CALIBRATION ADJUSTING SENSORS amp SWITCHES FILTER Classic Coll filter limit1 40497 Figure F 19 Checking the limit sensor adjustment a Enter the service mode and select the display of internal signals mode 01 Fig F 19 1 b Pressing the field light keys Fig F 19 2 3 drive the filter worm screw nut Fig F 19 5 to hall sensor and check that the indicator LED on the COLLIMATOR PCB lights as well as the right middle signal Fig F 19 4 on the display Mechanical checking and adjustment The filter worm screw nut may not hit the collimator frame or stick to the beginning of the worm screw arrows on Fig F 19 To prevent this adjust the position of the COLLIMATOR PCB Fig F 19 6 The final adjustment of the filter position is performed according to instructions described in chapter F section 4 3 Especially the spot collimator adjustment must be checked Technical Manual Sophie Mammography X ray unit F 45 Chapter F ADJUSTMENT amp CALIBRATION ADJUSTING SENSORS amp SWITCHES MIRROR Checking the limit sensor adjustment a Enterthe service mode and select the display of internal signals mode 00 Fig F 20 1 b Press the right field light key Fig F 20 2 The mirror rotates away from the radiation window and stops automatically to its limit The indicator
51. dependent density O for each parame page F 21 34 35 adjustment parameters ter 36 37 38 39 40 41 42 43 Density fine adjustment sensor 2 0 page F 21 44 Density fine adjustment sensor 3 0 page F 21 45 Mode of the OBL key operation 0 page F 21 46 Maximum kV value in AAEC mode 35 page F 21 47 Mode of LOAD ready 0 page F 22 48 77 Parameters transformed from the Mammotool page F 22 48 49 software 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 7T 78 mA limit O limit off page F 23 79 Mode of Mammotool parameters usage 3 page F 23 Technical Manual Sophie Mammography X ray unit F 11 Chapter F ADJUSTMENT amp CALIBRATION KEYBOARD CONTROLLED in service mode 3 3 C arm upright position calibration se Oe gt D gt hold for 3 seconds Why and when to calibrate Perform this adjustment whenever the REAR CPU is replaced with another one or if the C arm is not straight upwards when in the 0 CC projection position The correct upright position informa tion is stored in the REAR CPU thus this calibration can be done from the keyboards Instruments and tools required A water scale makes the adjustment easier but it is not necessary Performing the calibration a Beingin the service mode pressing the CTL key and then press and hold the CC key for 3 seconds b The C arm starts first an init
52. for simulated micro calcifications and 3 for masses should be achieved to meet ACR cri teria 2 7 Verifying AEC system control limits Applicable measurement instruments and tools e MDH Model 1515 Radiation monitor MDH Model 1050U Converter MDH Model 10x5 6M lon chamber FLUKE Model 8060A Digital multimeter Lead Block 1x 100x100 mm Preparation for measurement Connect the low sensitivity ion chamber 10x5 6M to the converter Place the chamber on the image receptor support so that the chamber is in the center of the front edge If the value of the feedback resistance is unknown turn power off from SOPHIE and measure the resistance of the feedback resistor from the connector on the generator module and record it Leave the measuring pins across the feedback resistor but select voltage range Turn the power on to the Radiation monitor by rotating the FUNCTION SELECTOR knob to the MEASURE position Select the PULSE DURATION mode from the Mode selector of MDH Set the PULSE FRACTION THRESHOLD to 70 using the thumbwheel on the MDH Place the lead block 1 mm on the image receptor support so that it covers the AEC detectors Measurement Procedure Toshiba E7272 x ray tube a Select 24 kV AEC mode filter 1 30 um Mo sensor 1 from the SOPHIE CLASSIC panel b Take an exposure c Readthe exposure time on the display of MDH and calculate the corresponding mAs value according to the formula 110mAx450ms exp
53. gt OMMO sae hold for 3 seconds Press the CTL key and then press and hold the kV down key for 3 seconds Use the field light keys to change the setting The time force display the current setting ON c limit on OFF c limit off Press the CTL key to exit a OFFc wg mA limit is off The mA value is chosen to be the maximum allowed mA for the selected kV according to the table shown in section Toshiba E7290 x ray tube ratings on page A 15 The factory default is off b Onc kg mA limit is on The maximum mA value that is used is 80 mA Technical Manual Sophie Mammography X ray unit F 7 Chapter F ADJUSTMENT amp CALIBRATION KEYBOARD CONTROLLED in service mode 3 KEYBOARD CONTROLLED in service mode Some more advanced and also critical adjustments and functions can be performed in the spe cial service mode To be able to perform any of the below mentioned calibrations you must first enter the service mode Additionally all available special service mode functions are listed in a short form mode in the chapter KEYBOARD FUNCTIONS amp MODES on page C 1 3 1 How to enter the service mode 12 45 Normal mode hidden y Con Si y Ahhh Entering service mode press hold for ist 3 seconds 32 C Service mode entered Press the CTL key and press and hold the HIDDEN key for 3 seconds This key sequence enters the special service mode The normal time of day display is briefly replaced b
54. i i another electrical appliance that there is a mains voltage present Check that the volta is within 208 240VAC with an AC voltmeter b Checkthat the unit is turned on the rocker switch in the rear base panel is in ON positi Mains Switch c Check main fuses at the rear base panel on the unit make a conductivity check to really make sure that the fuses are OK d Open the covers so you get access to the POWER SUPPLY and check it s 1 6 AT starter fuse e Remove the base rear cover to get access to the mains inlet Trace forwards for a break in the mains voltage Mains screw terminals Fuse holders Mains switch set switch to ON Mains filter BASE PCB SYNC PCB f Remove covers so you get access to the POWER SUPPLY power connector at the right side of the black power supply box Check for mains voltage at the connector g Check that the POWER SUPPLY if firmly inserted into its connectors h Measure if you can find any voltage on the collector boards or if any led indicators are on i Before replacing the POWER SUPPLY Remove some boards to find a possible short circuit that heavily loads the power supply outputs Disconnect the loads one by one to find the problem NOTE The POWER SUPPLY as well as many of the other circuit boards contains self resetting overcurrent circuit breakers These would be triggered because of short circuits or over loads on the voltage supply lines To reset them simply t
55. into the tube never can exceed this limit For example if an exposure of 24 kV 100 mA 1 sec is performed a wait period of 5 seconds is calculated and no further exposures are allowed until this time has elapsed There is no way to bypass these safety feature under any circumstances and it is thus virtually impossible to overload the X ray tube Technical Manual Sophie Mammography X ray unit A 9 Chapter A GENERAL amp TECHNICAL DATA USER S STATEMENT FOR PLANMED SOPHIE TOSHIBA Table 2 Maximum mA for Tube E7272 vs different modes and line frequencies MANUAL EXPOSURE MODE AUTOMATIC AEC EXPOSURE MODE Large focal spot Small focal spot Large focal spot Small focal spot 0 3 mm 0 1 mm 0 3 mm 0 1 mm 0 1 1 5 1 6 0 5 gt 5 0 1 0 45 5 0 45 6 0 5 2 45 10 sec sec sec sec sec sec sec sec sec sec kv 50 60 50 60 50 60 50 60 50 60 50 60 50 60 50 60 50 60 50 60 Hz Hz Hz Hz Hz Hz Hz Hz Hz Hz Hz Hz Hz Hz Hz Hz Hz Hz Hz Hz 20 70 70 70 70 80 80 20 20 20 20 70 70 70 70 80 85 20 20 18 20 21 80 80 80 80 90 90 20 20 18 20 80 80 80 80 90 95 20 20 18 18 22 90 90 90 90 100 100 22 22 18 18 90 90 90 90 100 105 22 22 16 18 23 100 100 100 100 100 100 22 22 18 18 100 100 98 100 98 108 22 22 16 18 24 110 110 100
56. is thus possible to drive the respective mechanism past the normal operating range to the mechanical end Use this feature with care and avoid overloading the mechanisms 00 Mirror mechanism Hall sensor signal amp motor drive 00 right middle segment magnet at sensor mirror out of the Xray beam 01 Filter mechanism Hall sensor signal amp motor drive 01 right middle segment magnet at sensor filter at position 1 Mo 02 Collimator mechanism Hall sensor signal amp motor drive 02 right middle segment magnet at sensor collimator at widest field 03 Labeling disc Hall sensor signal amp motor drive 03 right middle segment magnet at sensor 04 MAG LOAD mechanism Hall sensor signals amp motor drive 4 right upper segment contact view position sensor 04 left middle segment motor rotation sensor signal right lower segment maximum magnification position sensor 05 UP DOWN mechanism Hall sensor signals amp motor drive 4 light upper segment at highest position 05 right middle segment lift reference sensor signal lt right lower segment at lowest position left middle segment motor rotation sensor signal C 10 Sophie Mammography X ray unit Technical Manual Chapter C KEYBOARD FUNCTIONS amp MODES SERVICE MODE FUNCTION DETAILS 06 C arm mechanism and rotation reference sensor signals amp motor drive 4 right upper segmen
57. needed Technical Manual Sophie Mammography X ray unit B 1 Chapter B UNPACKING amp INSTALLATION PRE INSTALLATION REQUIREMENTS Recommended minimum clearance above the C ARM is 200 mm 8 inch when the arm is in the highest possible position g This equals a ceiling height of 2190 mm 84 3 in 2190 mm 84 3 in m Recommended minimum clearance OM around the unit left front right is bm 2900 mm gt 35 5 in This equals an operating depth from the wall of 1500 mm 59 in and and operating width side to side of 900 mm 1500 mm 2980 mm 117 in 85 5 in 59 in 1 4 Radiation protection The radiation safety regulations of individual countries must be complied with Radiation protec tion devices should be used as movable or stationary radiation shields The mobile version of the Sophie has an integral radiation shield that must be attached to the unit Safe distances without specific shielding A few exposures without additional radiation shielding can be made without exceeding the mR hour per month limit if the operator distance is far enough from the unit Please refer to local reg ulations However protective operator shielding is always recommended and should always be used Wall LEAD equivalence The lead equivalence of the walls in the room depends on the material used please refer to local radiation protection regulations A recommended safe value of the wall lead equivalenc
58. of compression after exposure lsel eee eee eee F 4 2 5 Initial descent speed 00 cee tenes F 4 2 6 Compression speed decrease rate 1 lille F 5 2 7 Intermediate compression stopping force llle F 5 2 8 Twincomp compression on off lisi F 5 2 9 Lift motor crawling speed 1 2 6 III F 5 2 10 Setting correct time and date 2 leere F 6 2 11 Density offset adjustment F 6 2 12 AAEC contrast adjustment rns F 6 2 13 Automatic film labeling on off lille F 6 2 14 Disabling bucky grid movement llsselee e F 7 2 15 Alarm sound frequency loudness 0 000 e ete F 7 2 16 Dimming the displays 0 000 e eee eee F 7 2317 mA limit on off 22 12 ra ie ie abi a bed th edad t elas F 7 3 KEYBOARD CONTROLLED in service mode F 8 3 1 How to enter the service mode F 8 3 2 Factory preset recalling settings for all parameters llle esee F 9 3 3 C arm upright position calibration 0 0 eee F 12 3 4 Breast thickness measurement calibration llll eee F 12 3 5 Compression force measurement calibration llle F 13 3 6 X ray tube filament preheating voltage calibration 0s eee F 14 3 7 AEC sensor calibration 0 2 eee F 15 3 8 kV value fine adjustment sanusa saaana neare F 16 3 9 Special system parameters Setup 0 000 llle F 17 4 FINE TUNING SOPHIE AEC FOR NONSTANDAR
59. or the table position recognition Make the same tests as in errors ERO2 and or ERO6 ERO No projection angle is selected Exposure is not allowed if the cassette table is in the load position or if no projection is selected 4 2 ERRORS 10 16 X ray safety and AEC sensor related These errors are related to built in safety circuitry monitoring the performance of the x ray tube during the exposures All these errors stop the radiation immediately even in the middle of an exposure The partially exposured film should be developed to see if a retake is necessary ER10 X ray tube anode kV voltage overshoot This condition is monitored by the TUBE CPU hardware during the whole exposure and if the anode voltage rises above 40 kV the exposure is immediately aborted and this error indicated Possible reasons are Partial x ray tube arcing current spikes can cause the voltage regulating electronic servo to overshoot This kind of sparking can occur now and then without any special reason and should be considered a normal phenomenon If however the occurrence frequency becomes too high it could be an indication of a degrading tubehead If this error occurs con stantly it is probably caused by a faulty POWER SUPPLY or TUBE CPU or TUBE HEAD replace in this order A bad galvanic contact between the power supply heatsink surface the small rect angular surfaces under the power supply bottom and the mating tubehead cast surfaces could ca
60. other two sensors give the same error If not then the AEC sensor assembly must be replaced If the tube is really producing a beam that reaches the sen sor check with a fluorescent screen and this error still occurs it is an indication that the AEC sensor signal is not reaching the TUBE CPU Probably the AEC sensor PCB produces a signal but there is a break or bad contact somewhere Check the wiring from the sensor to the TUBE CPU Change the AEC sensor assembly The last one to change is the TUBE CPU or POWER SUPPLY ERO4 The cassette is not properly positioned The cassette rear edge is not touching the labeling head assembly front edge where the sensing button is located If the button is pressed and the error still repeats then there is a problem with the sensing microswitch or its cabling Check that the microswitch is not mechanically damaged or obstructed The switch signal can be monitored in the service mode for easier faultfinding Check the wiring starting from inside the labeling device The signal goes from the switch through the LABELING PCB and SHELF COLLECTOR PCB to the TUBE CPU Change the TUBE CPU as last remedy D 8 Sophie Mammography X ray unit Technical Manual Chapter D HELP AND ERROR MESSAGES DETAILED ERROR MESSAGE EXPLANATIONS ERO5 Cassette was not removed since the previous exposure If the cassette was removed but this error still appears perform the same checks as in ERO4 ERO6 The cassette ta
61. pitch signal should sound during the 2 second start up anode acceleration and preheating of the filament and the higher pitch signal during the radiation generation Exposure switch Confirm that the exposure switch requires continuous activation to maintain the exposure Releasing the exposure switch during the radiation should produce the EROO message on the displays clear it by pressing the CTL key once Make a visual check that the exposure switch spiral cable is not damaged Labels Check that no labels compression paddles shields or unit are detached or worn and that they are all legible AEC performance Take an exposure of your test phantom and compare the developed film with older exposures Adjust the internal density correction if needed See the Operators Manual for details Compression force display Remove the cassette and replace it with a small scale Put a soft spacer between the paddle Compress with the front edge of the paddle a small scale and compare the value with the com pression display in the unit The deviation should be less than 15 Technical Manual Sophie Mammography X ray unit E 1 Chapter E PREVENTIVE MAINTENANCE PREVENTIVE MAINTENANCE CHECKS 2 PREVENTIVE MAINTENANCE CHECKS NOTE These checks must be performed by a qualified service technician during the installation of the unit and thereafter on an annual basis Failure to do so could affect image quality or patient safety
62. service mode 34 42 Exposure mode and filter dependent density adjustment parameters The density value can be adjusted to be different for each filter and exposure mode see table below This parameter will be added to the density value set in the normal user mode with the density adjustment keys The adjustment range of the parameters is from 3 lighter exposures to 3 darker exposures Note that the total density value range is still from 7 to 7 The factory default is n 0 for all the parameters Ed Filter exposure mode Setting in this unit number 34 Molybdenum Contact view exposure 35 Aluminum Contact view exposure 36 Rhodium Contact view exposure 37 Molybdenum Bucky exposure 38 Aluminum Bucky exposure 39 Rhodium Bucky exposure 40 Molybdenum MAG exposure 41 Aluminum MAG exposure 42 Rhodium MAG exposure 43 Density fine adjustment sensor 2 n density fine adjustment value Setting in 43 n kg range from 5 lighter film to 5 darker film this unit one step equals 2 6 of OD e 1 5 of the coarse density control setting The factory default is n 0 no adjustment Use this fine adjustment to fine tune the film density for sensor number 2 if one normal density step is too coarse 44 Density fine adjustment sensor 3 n density fine adjustment value Setting in 44 n kg range from 5 lighter film to 5 darker film this unit l one st
63. the BASE PCB and REAR CPU ERO Magnification is not possible with Bucky installed Remove the Bucky cable plug from the connector under the cassette table If this error appears even with no Bucky connected there is a problem in indentifying if the Bucky is connected or not The identifying signal can be monitored in the service mode for easier faultfinding The Bucky signals goes to the TUBE CPU Check the wiring and as a last remedy change the TUBE CPU ERO2 Bucky is not inserted but cable is connected If the Bucky grid is inserted with the attaching pins all the way down into the holes and the error still occurs then there is a problem in identifying the compression paddle through the rear fin gers There are two microswitches one inside each pin hole identifying the paddle size and existence Check the operation of these switches their signals can be viewed in the service mode for easier faultfinding There could be a bad microswitch or a faulty cable or connector The signals from these switches goes through the FRONT COLLECTOR PCB and REAR COLLEC TOR PCB boards to the REAR CPU ERO3 No or too low signal from the AEC sensor The TUBE CPU doesn t get any signal from the AEC SENSOR PCB during the exposure or very little radiation is reaching the selected sensor Check first if there are any foreign objects obstructing the beam Check that the small focus has not been accidentally selected instead of the normal size one Check if the
64. the base front cover plate on either side of the C arm Pull the locking levers up to release the transportation wheel brakes and the unit is ready for transportation B 12 Sophie Mammography X ray unit Technical Manual Chapter C KEYBOARD FUNCTIONS amp MODES 1 KEYBOARD OVERVIEW Left oblique view key Left lateral key This chapter describes all keyboard functions in a short form format and special display modes in details For detailed descriptions about adjustments and settings performed with the help of the keyboards please refer to chapter ADJUSTMENT amp CALIBRATION on page F 1 The unit s keyboards works in parallel and are identical see picture below However if one of the keyboards would fail it is still possible to operate the unit using the other one since the key boards operate electronically independently LZ owe 1 Hidden key Cranio caudal key SIN left breast key Ce r Right oblique view key j Right lateral key Angle display Control secondary DEX right breast key WENN y Cassette loading key Cy C2 j kV up down keys L and display C mAs up down keys J and display _ _ Density up down keys and display function key Magnification key Compression release key L_ J Magnification display Time force d
65. tube current obtainable from the high voltage generator when operated at its nominal x ray tube voltage 35kV 80mA 60Hz large focal spot 35kV 70mA 50Hz large focal spot 35kV 16mA 60Hz small focal spot 35kV 14mA 50Hz small focal spot Technical Manual Sophie Mammography X ray unit A 7 Chapter A GENERAL amp TECHNICAL DATA USER S STATEMENT FOR PLANMED SOPHIE TOSHIBA The highest x ray tube current together with the highest x ray tube voltage obtainable from the high voltage generator when operated at its highest x ray tube current 120mA 24kV 60Hz large focal spot 110mA 24kV 50Hz large focal spot 22mA 26kV 60Hz small focal spot 22mA 24kV 50Hz small focal spot The x ray tube voltage and x ray tube current which result in the highest electric output power 27kV 110mA 60Hz large focal spot 34kV 80mA 50Hz large focal spot 26kV 22mA 60Hz small focal spot 24kV 22mA 50Hz small focal spot The nominal electric power for a load time of 0 1s and at the nominal x ray tube voltage 35kV 80mA 60Hz 2800W large focal spot 35kV 70mA 50Hz 2450W large focal spot 35kV 16mA 60Hz 560W small focal spot 35kV 14mA 50Hz 490W small focal spot Reference current time product large focal spot for all kV values 40mA 0 1s 4mAs small focal spot for all kV values 10mA 0 1s 1mAs The lowest current time product within the specified range of compliance large focal spot 30mA 0 1s 3mA
66. two screws at the C arm lower cover Fig H 5 5 and the two screws at the upper part of the C arm vertical cover Fig H 5 6 and slide the lower cover off C arm vertical cover Fig H 5 7 a Remove the two screws that hold the vertical cover to the support plate Fig H 5 8 b Remove the vertical cover Vertical cover support plate Fig H 5 9 a Remove the support plate fixing screws 2 pcs Fig H 5 10 b Remove the support plate C arm side panels Fig H 5 11 a Disconnect the connectors of the C arm switches from the PCB Fig H 5 12 b Remove the side panel locking screws located at the front on the side panel Fig H 5 13 c Remove the screws on the underside of the cassette table Fig H 5 14 d Support the side panel with your hand and remove the screw located at the back of the unit Fig H 5 15 e Remove the side panel Side handles Fig H 5 16 a Remove the four screws Fig H 5 17 from the side panel b Remove the side handle Technical Manual Sophie Mammography X ray unit H 5 Chapter H PARTS REPLACEMENT amp REPAIR REMOVING amp REPLACING COVERS 1 5 Hood a Remove the transport handle or the handle hole cover plugs Fig H 6 1 from the hood Remove the hood bottom cover plates Fig H 6 2 b Remove the screws that hold hood to the support plates Fig H 6 3 There are two screws on each side of the unit c Liftthe hood up slightly and disconn
67. value R nominal 34Q Switch the multimeter to the voltage range Turn on the power to the Radiation monitor by rotating the FUNCTION SELECTOR knob to the MEASURE position Select the PULSE DURATION mode from the MODE SELECTOR of MDH Set the PULSE DURATION THRESHOLD to 70 using the thumbwheel on the MDH Turn on the SOPHIE The X ray unit may be damaged if the power is turned on when the multimeter is on the resistance range Select 20kV 50mAs and small focus from the control panel of SOPHIE Make sure that the Automatic kV selection and the AEC modes are not selected Take an exposure and record the multimeter voltage value U during exposure Record also the time reading on the display of MDH The right current I value is calculated from the measured voltage value by dividing it by the measured resistance value e g e R 34 20 U 341mV U R 341mV 34 20 9 98mA The corresponding mAs value is calculated by multiplying the mA value by the exposure time value Perform exposures with the following values e 20kV 50mAs 21mA 2 38 sec small focus 35kV 28mAs 28mA 1 sec small focus 20kV 400mAs 80mA 1 sec large focus 35kV 300mAs 88mA 3 41 sec large focus Rejection limits e All measured mA values must be within x 4mA of the pre selected mA values when the large focus is used and within 1mA when the small focus is used e All measured times must be within 4 of the pre selected times
68. 0mAs the measured mAs values must be within 3mAs of the pre selected mAs values For mAs values that are more than 40mAs the measured mAs values must be within 8 of the pre selected mAs values E 8 Sophie Mammography X ray unit Technical Manual Chapter E PREVENTIVE MAINTENANCE OTHER PREVENTIVE CHECKS 3 5 Verifying the tube current mA and the exposure time Toshiba E7290 x ray tube Applicable measurement instruments and tools e MDH Model 1515 Radiation monitor MDH Model 1050U Converter MDH Model 10x5 6M lon chamber FLUKE Model 8060A Digital multimeter Feedback measuring cable Order No 7827773 Measurement procedure Connect the low sensitivity ion chamber 10x5 6M to the converter Place the chamber to the image receptor support so that the chamber is in the center of the front edge Turn off the power from SOPHIE Remove the following C arm covers top cover lower cover and vertical cover refer to section C arm covers on page H 4 Remove the power supply cover refer to section Replacing the Tube CPU software on page H 9 Connect the Feedback measuring cable to the connector P3 on the 109 10 15 PCB The board is located in the rear end of the Power supply see Fig E 1 Connect the cable to the multimeter first red to VQ and black to COM and after that connect the black connector to mA connector Switch the multimeter to the resistance range and record the mA feedback line resistance
69. 1 that connects to the power supply at the right side of the collimator shield also called beam limiting device f Remove the collimator shield Fig H 16 2 Disconnect the lightfield bulb wires Fig H 16 3 g Remove the ground connectors of the generator power spiral cable Fig H 16 4 from the tubehead h Disconnect the generator to collimator cable from the COLLIMATOR PCB Fig H 16 5 i Remove the cable holding bracket Fig H 16 6 j Disconnect the tubehead temperature sensor cable from the MAG PCB Fig H 16 7 k Disconnect the generator to mag control cable from the MAG PCB Fig H 16 8 l Disconnect all the connectors from tubehead interface cable Fig H 16 9 m Remove the capacitors Fig H 16 10 Remove the mag down hall cable from the tubehead Fig H 16 11 Technical Manual Sophie Mammography X ray unit H 15 Chapter H PARTS REPLACEMENT amp REPAIR REPLACING THE X RAY TUBEHEAD N OTE LBL 7870031 BEFORE WORKING ON THE MAGNIFICATION DRIVE ASSEMBLE DRIVE THE C ARM TO THE HORIDNTAL POSITION OR IF THIS IS NOT POSSIBLE LOCK THE TUBEHEAD amp CASSETTE TABLE ASSEMBLE IN POSITION TO PREVENT THE C ARM FROM DROPPING IF THE BALL SCREW IS RELEASED Figure H 17 n Remove the collimator from the tubehead by opening the fixing screws 4 pcs Fig H 17 1 Do not touch the radiation window 0 Disconnect the mag pulse hall cable from the MAG LOAD motor Fig H 17 2
70. 108 33 31 108 108 108 33 30 28 110 110 110 35 30 110 110 110 35 28 29 110 107 104 34 29 110 106 103 34 27 30 110 104 100 33 28 110 103 99 33 26 31 107 101 97 32 27 107 100 96 32 25 32 103 98 93 31 26 103 97 92 31 24 33 100 95 90 30 25 100 94 89 30 23 34 97 92 87 29 24 97 91 86 29 22 35 94 88 84 28 24 94 87 83 28 22 9 2 Cooling curves for x ray tube 210 200 180 160 140 120 100 80 HEAT STORAGE kJ 60 40 20 ANODETHERMAL CHARACTERISTICS 707W 565W 424W 283W 141W TIME min HEAT STORAGE kHU 700 600 T T TUBE HOUSING HEAT DISSIPATION CAPACITY 500 400 300 200 100 100 150 TIME min 200 250 A 16 Sophie Mammography X ray unit Technical Manual Chapter B UNPACKING amp INSTALLATION 1 PRE INSTALLATION REQUIREMENTS Since the SOPHIE is a very small and light weight unit the installation can be performed by one person only The unit is shipped complete so there is no need to perform special assembly or cal ibrations on the field The unit is normally used free standing and the mobile version standing on its own locked wheels so there s not normally any need to drill holes during the installation 1 1 Tools required Tools for the mechanical installation A standard set of screwdrivers a motorized one is recommende
71. 24kV 500mAs large focus E7272 28kV 500mAs largdocugE7290 Rejection limits All measured kV values must be within 1 5 kV of the pre selected kV values Technical Manual Sophie Mammography X ray unit E 7 Chapter E PREVENTIVE MAINTENANCE OTHER PREVENTIVE CHECKS 3 4 Verifying the tube current mA and the exposure time Toshiba E7272 x ray tube Applicable measurement instruments and tools e MDH Model 1515 Radiation monitor MDH Model 1050U Converter MDH Model 10x5 6M lon chamber FLUKE Model 8060A Digital multimeter Feedback measuring cable Order No 7827773 Measurement procedure Connect the low sensitivity ion chamber 10x5 6M to the converter Place the chamber to the image receptor support so that the chamber is in the center of the front edge Turn off the power from SOPHIE Remove the following C arm covers top cover lower cover and vertical cover refer to section C arm covers on page H 4 Remove the power supply cover refer to section Replacing the Tube CPU software on page H 9 Connect the Feedback measuring cable to the connector P3 on the 109 10 15 PCB The board is located in the rear end of the Power supply see Fig E 1 Connect the cable to the multimeter first red to VQ and black to COM and after that connect the black connector to mA connector Switch the multimeter to the resistance range and record the mA feedback line resistance value R nominal 34Q Switch
72. 26 9 1 Lift motor replacement 0 0 c ee nn H 26 9 2 C arm rotation motor replacement 000 cece eee H 28 9 3 Compression motor replacement 0 00 c eee eee H 34 9 4 Magnification motor replacement 0 0 0 tee H 35 10 REPLACING THE LABELING HEAD s suses H 37 11 GAS SPRING REPLACEMENT 00ce cece eee eeee H 38 1121 C armis functional 211i enm bei de Oe aw dk EPA ep EY RASSE H 38 11 2 C arm is not rotating 0 0 cette eee H 38 11 3 Replacing the gas spring llle I H 38 12 REPLACING PARTS IN COMPRESSION MECHANISM H 39 12 1 Replacing the twin comp damper sls H 39 Chapter SCHEMATICS amp DIAGRAMS COPYRIGHT PLANMED 2000 10 PUBLICATION NUMBER 788405 revision 11 TOC 4 Sophie Mammography X ray unit Technical Manual Chapter A GENERAL amp TECHNICAL DATA WARNINGS A CAUTION CAUTION CAUTION WARNING THE FOLLOWING WARNINGS CAUTIONS AND NOTES MUST ALWAYS BE CONSIDERED WHILE SERVICING IN ORDER TO AVOID EITHER PERSONAL INJURY OR DAMAGE TO THE UNIT RADIATION SAFETY RULES Some procedures described in this manual produces X ray radiation Always follow rules for radiation safety Never touch or scratch the surface of the x ray tube radiation window The window is made of beryllium that can be harmful if inhaled or swallowed Never attempt to open the TUBE HEAD It does not contain any serviceable pa
73. AEC key HE23 This key has no function in together with the CTL key Press the CTL key to turn its indicator off HE24 The C arm cannot be rotated with the C arm rotation Select the exposure view or decrease the compres switches either the exposure view is not selected or sion force the compressive force is more than 5 kg HE25 The error must be cleared first from the display Press the CTL key HE26 This key has no function in the STEREOTACTIC Remove the STEREOTACTIC system first mode ex SIN ML LOAD etc HE27 The exposure switch is still activated Release the exposure switch in the remote control HE28 The C arm is not allowed to continue to rotate with Press and hold any of the foot controls to continue out pressing any of the foot controls the movement of the C arm D 2 Sophie Mammography X ray unit Technical Manual Chapter D HELP AND ERROR MESSAGES HELP MESSAGES SHORTFORM TABLE Table 13 Help messages shortform table Continued HE REASON ACTION HE29 You cannot proceed because the cassette table is in Press the LOAD key the LOAD position HE30 The UP Down movement or change of projection is Remove needle before repositioning the unit not allowed in the STEREO mode with the needle inserted HE31 Use the REL key to drive the STEREO device HE33 LOAD and MAG positions are not allowed when Press either MAG or LOAD key to drive back to con using the STEREOTACTIC syst
74. CPU 1 20 1 28 1 20 1 28 1 80 1 80 2 00 1 59 1 59 1 81 1 81 2 01 1 60 1 60 4 00 2 01 1 63 1 63 4 01 2 01 2 04 1 64 1 64 4 02 2 02 2 04 1 65 1 64 4 06 2 06 2 04 1 66 1 64 4 20 2 20 1 67 1 64 4 21 2 22 1 68 1 64 4 22 2 23 1 69 1 69 4 23 2 25 1 70 1 69 4 30 2 31 1 71 1 69 4 40 2 40 1 72 1 69 4 41 2 41 1 73 1 69 1 74 1 69 1 75 1 69 1 70 1 76 1 75 1 76 1 77 1 77 1 78 1 79 Technical Manual Sophie Mammography X ray unit A 3 Chapter A GENERAL amp TECHNICAL DATA HOW TO FIND INFORMATION IN THIS MANUAL 5 HOWTO FIND INFORMATION IN THIS MANUAL For normal operating instructions please refer to the SOPHIE USER S MANUAL However this manual contains also full explanations of all user accessible adjustments that can be done with the keyboards For navigation please refer to the table of contents in the beginning of this manual The follow ing is a brief description of the chapters in this manual GENERAL amp TECHNICAL DATA on page A 1 this chapter This chapter contains general information as well detailed technical specifications of the unit Here you can find answers to all questions related to the unit specifications Full technical speci fication details can be found here UNPACKING amp INSTALLATION on page B 1 This chapter contains complete instructions how to unpack and install the unit with information about installation requirements Also information about transpor
75. D FILM SCREEN COMBINATIONS 2 9 Rn sd ceed ne whe ERERERGESES SE F 24 4 1 Backgrounds eue REESE Aye tiate yee tasvee ed teh aes F 24 4 2 Testing the AEC for proper tracking 0 0 cece eect eee F 24 4 3 Adjusting the thickness tube potential and time compensations F 24 4 4 Adjusting the filter and imaging mode adjustments 2000 ae F 26 5 MECHANICAL ADJUSTMENTS sese F 28 5 1 MAG LOAD mechanism positional calibration llle eee ee F 28 5 2 UP DOWN mechanism positional calibration llis F 28 5 3 X ray beam adjustment Toshiba E7272 X ray tube lille esses F 29 5 4 X ray beam adjustment Toshiba E7290 X ray tube lille F 35 5 5 Light field beam adjustment nananana auaa B F 42 5 6 Filter position adjustment 0 0 eee III F 43 5 7 Twincomp paddle damper adjustment 0 eee F 43 5 8 Gas spring tension adjustment 0 aaea F 43 6 ADJUSTING SENSORS amp SWITCHES F 44 6 1 Collimator mechanism limit sensors 0 0 0 cc eee F 44 6 2 Compression mechanism limit sensors llle eere F 49 6 3 MAG LOAD mechanism limit sensors 1 2 2 0 000 cee tees F 52 6 4 Labeling head disk position sensor llle F 54 6 5 C arm rotation Sensor 2 tenet eee F 54 6 6 UP DOWN mechanism sensors 000 cette ee F 58 6 7 Cassette table size identification switches
76. ENSORS amp SWITCHES 6 8 Lower paddle identification switches Preparations a Drive the C arm to the upright CC position Drive the cassette table to the LOAD position b Enterthe service mode and select the display of internal signals mode 09 see SERVICE MODE FUNCTIONS SHORT FORM on page C 4 Fig F 41 1 c Checkthe functioning of the lower paddle holders with small and large lower compression Identification switches 290997 paddles and small and large bucky grids E nc AN a E 09 kg Small paddle 18x24 g Small paddle 18x24 tilted upwards kg Minimum 6 12mm ig Large paddle 24x30 Large paddle 24x30 tilted upwards ky Minimum 6 12mm Figure F 41 Checking the microswitches a b Push the small lower compression paddle to the paddle holders and check that the left lower signal on the display lights Fig F 41 2 Tilt the lower compression paddle upwards and check that the right lower signal Fig F 41 3 lights when the lower edge of the compression paddle is 6 12 mm from the cassette table top cover Perform the same checking with the large lower compression paddle Fig F 41 4 and 5 and the small and large bucky grids Note that when there is no paddle inserted no display light is on F 64 Sophie Mammography X ray unit Technical Manual Chapter F ADJUSTMENT amp CALIBRATION ADJUSTING SENSORS amp SWITCHES Mechanical check
77. ID SPECIFICATION Grid manufacturer Grid type Grid movement Grid ratio Grid lines per cm Focusing distance Application limits Material of absorbing strips Contrast improvement ratio Selectivity Grid exposure factor Toshiba E7290 rotating anode 9700 rpm at 180 Hz Automatic electrical 300 000 HU Molybdenum 16 degrees large focal spot 10 degrees small focal spot Beryllium 0 3mm 0 1 mm 30um Mo and 0 5mm Al or 30um Mo and 25um Rh constant potential high frequency 20 35kV x 2kV virtually DC 80 110mA 5mA 21 35bmA 1mA 10 500mAs optional 600mAs in GB x 4mAs or 10 whichever is larger 10 310 mAs 0 1 5 seconds optional 6 seconds 5 0 1 9 9 seconds 5 automatically controlled internal fan 208 240V 50 or 60Hz single phase automatic 10 10 absolute minimum maximum 187V 265V 2 x 15AT 250V max 100VA idle 4000VA max for 5 seconds gt 0 95 intermittent lt 10 lt 250W Gilardoni GRIDGIL HT Fiber interspaced vertical Variable amplitude oscillation r5 N36 f965 18x24 f 50 f591 24x30 153 f582 Pb K1 47 26 04 B1 69 Transmission of primary radiation Tp 0 75 Max deviation between the central line indication and the true central line A2 Technical Manual Sophie Mammography X ray unit A 11 Chapter A GENERAL amp TECHNICAL DATA TECHNICAL SPECIFICATIONS TOSHIBA E7290 X RAY AUTOMATIC EXPOSURE CONTROL AEC
78. KEYBOARD CONTROLLED in normal mode 2 KEYBOARD CONTROLLED in normal mode Some special adjustments can be performed with the help of the keyboard by the end user The following pages lists all these special adjustments that can be performed in the normal user keyboard mode These are also explained in the Sophie User s Manual Space is reserved under each heading for writing down the current setting for this particular unit It is a good idea to write down the preferred settings in the case these is a need to do such ser vice to the unit where this information is lost replacing CPU boards A complete table with all parameters and their respective factory defaults with space also reserved for personal preferences can be found in Factory preset recalling settings for all parameters on page F 9 2 1 Automatic kV mode gt Qu GD GED gt Rete Press the CTL key and the kV up key to enter the Automatic kV mode setting The time force display show the current setting Use the field light keys to change mode and press the CTL key to exit OFFA w Automatic pre selection of kV is off The user selection of the kV is used unaltered during the exposures The factory default is off OnA kg Automatic pre selection of kV is on The kV is set automatically according to the compression thickness to a pre selected value The user can alter the kV setting as normally if the suggested kV value is c
79. LAT key Press the CTL key and the press and hold the left LAT key for 3 seconds Use the field light keys to change the setting The range is from 1 to 25 kg Press the CTL key to exit This key sequence sets the compression force where the compression temporarily stops and changes over to crawling speed The time force display shows the current setting The factory default is 10 kg The intermediate compression stopping force of the twincomp compression can be 1 5 kg greater than this compression force used in normal compression see 33 Intermediate compres sion stopping force offset with the twincomp compression on page F 20 The maximum compression force can be set in the service mode see 01 Maximum compres Sion force on page F 17 2 8 Twincomp compression on off COS Ca KS PR hold for 3 seconds Press the CTL key and the press and hold the load key for 3 seconds Use the field light keys to change the setting Press the CTL key to exit This key sequence sets the compression method to either traditional OFF parallel paddles or TWINCOMP ON tilting upper paddle The time force display shows the setting The factory default is ON TWINCOMP selected 2 9 Lift motor crawling speed CO CD gt Seting n hold for 3 seconds Press the CTL key and the press and hold the SIN key for 3 seconds Use the field light keys to change the setting The range is from 1 very slo
80. Meaning of displays in the service mode Some of the normal displays have additional meanings in the service mode Please see the fol lowing table Table 11 Meaning of displays in the service mode DISPLAYS DURING STANDBY DURING EXPOSURE Tube head or power supply temper Briefly after the exposure time differ 12 45 k ature C waiting time blinking ence in milliseconds between the breast thickness help amp error mes anode motor windings Used only for sages factory diagnostic purposes Breast thickness Actual measured X ray tube cathode 0 6 ES filament voltage V 2 Selected kV Actual measured X ray tube anode 8 voltage kV Selected mAs Actual measured X ray tube anode 110 current mA C 4 Sophie Mammography X ray unit Technical Manual Chapter C KEYBOARD FUNCTIONS amp MODES SERVICE MODE FUNCTIONS SHORT FORM 3 3 Service mode settings amp special displays NOTE Make sure that the unit is in the service mode before performing the functions described in the following table Some key sequences might have another meaning if not in the ser vice mode Generally special service modes are entered by pressing the CTL key so that it s led turns on and the respective key either briefly or by holding it for three 3 seconds please refer to the shortform tables Many of the special service modes require that you exit by pressing the CTL key In those mo
81. N 5 4 X ray beam adjustment Toshiba E7290 X ray tube Preparations Protect yourself from radiation when taking an exposure CAUTION chapter H section 1 7 Check that the cassette is firmly in position Perform the cassette table adjustment if needed see edge Fig F 8 3 beamadj eps i i Sail Bie i i 1 E ceria f I ae Drive the C arm to the upright position turn off the power Remove the necessary covers see chapter H section 1 Remove the collimator cover see Figure F 8 Cassette table size identification switches on page F 61 Loosen the collimator screws Fig F 8 1 and pull the collimator assembly to the front at the TUBEHEAD Fig F 8 2 to make sure that the X ray beam reaches over the cassette table front Sophie Mammography X ray unit F 35 Technical Manual Chapter F ADJUSTMENT amp CALIBRATION MECHANICAL ADJUSTMENTS e The adjustment of the X ray beam front edge is performed by adjusting the cutter assembly Loosen the cutter assembly screws Fig F 9 1 and move the assembly forward as far as it goes Fig F 9 2 to make sure that the cutter does not limit the beam front edge Fig F 9 3 adjcutassy eps Figure F 9 F 36 Sophie Mammography X ray unit Technical Manual Chapter F ADJUSTMENT amp CALIBRATION MECHANICAL ADJUSTMENTS Spot coll
82. NTIVE CHECKS c Measure the illuminance of the light localizer from the center of each quadrant Record these readings Rejection limits All measured illumination figures must be more than 200 lux 3 8 Verifying visually defined x ray fields Applicable measurement instruments and tools e Delta Ohm Model HD8366 Lux meter 18 x 24 cm Kodak Min R Film cassette 24 x 30 cm Kodak Min R Film cassette 18 x 24 cm Mammographic x ray film 24 x 30 cm Mammographic x ray film 30 cm Ruler Preparation for measurement The x ray field alignment must be checked and approved before performing this test Insert the additional light limiter in the measuring device so that it uses 1 mm slot for measurements to allow exact contrast measurements Measuring alignment of visually defined X ray fields a Place a loaded small cassette 18x24 on the image receptor support Switch the light field on Place coins to the corners of the light field b Take an exposure 25 kV 20mAs and develop the film c Measure the misalignment between the light field marked with coins and the x ray field on the film Record the results d Repeat the above procedure using the large cassette 24x30 Measuring contrast of light defined X ray fields a Switch the light field on b Starting with the chest wall measure the illumination 3 millimeters from the edge of the field toward the center of the field and the illumination 3 millimeters from the edge of t
83. OR MESSAGE EXPLANATIONS Er27 Compression motor time out The mechanism doesn t reach the limit sensor within a specified time Er28 Compression force measurement calibration failure force signal out of range Er29 Membrane keyboard key short circuited pressed or faulty display board during the self test Er30 X ray tube Anode voltage kV missing dropping during exposure or lower that the setting Er31 X ray tube Anode current mA missing dropping during exposure or lower than the setting Er32 X ray tube Anode current mA higher than the setting Er33 X ray tube Filament voltage V missing or outside the required too low or too high Er34 X ray tube Bias voltage V power supply circuitry failure Er35 The Mains sync signal from the SYNC PCB is not reaching the TUBE CPU Er36 The REAR CPU detected a too long exposure gt 10sec and terminated it Er37 kV feedback signal open circuit Er38 mA feedback signal open circuit Er39 Cassette table key failure or pressed during self test Er40 Lower compression paddle not firmly inserted or lifted up by something obstructing it or problem with the lower compression paddle size identification switches Er41 C arm angle Lift mechanism height or Compression paddle positional information was wrong Er42 Spurious pulses from C arm motor rotation sensor or the motor rotates even if not commanded Er43 No pulses from C arm rotation motor rotation sensor or motor does not rotate even if commanded Er44
84. ORM 3 SERVICE MODE FUNCTIONS SHORT FORM CAUTION Some of the functions in the service mode may be jeopardize the proper operation of the unit Never use special service mode functions if you are not familiar with how they oper ate The service mode is only intended for the trained technician The service mode provides easy diagnostics and special setup and calibration functions Addi tionally there are also some special control and display modes that are not normally available The normal time of day display is replaced in the service mode with a temperature display The unit operates normally and exposures can be made in the service mode but with few exceptions The unit also ignores user related errors missing cassettes etc and can make exposures as long as no safety hazards are violated open feedbacks etc 3 1 How to enter exit the service mode 12 45 kg Normal mode e hidden d Key f Se Ahhh kg Entering service mode press hold for first esconde 32 kg Service mode entered a Press the CTL key so that its LED turns on b Press and hold the HIDDEN key for 3 seconds Above the right oblique view key The time force display shows briefly the message Ahhh and then turns to display the temperature of the tube head This is an indication of a successful entry into the service mode To exit from the service mode Press the HIDDEN key briefly or turn off the unit temporarily 3 2
85. OTING amp FAULTFINDING MECHANICAL PROBLEMS b LOWER PADDLE IDENTIFICATION Enter the service mode see How to enter exit the service mode on page C 4 and select the internal signals mode 09 see Diagnostic display of internal signals on page C 10 Rear collector PCB If some of the signals on the display does not light check the condition of the corresponding microswitch Paddle swicthes 290997 Figure G 5 Check the microswitch indicator LEDs on the FRONT COLLECTOR PCB 09 Front collector PCB P6 right P7 left kg If the LEDs on the FRONT COLLECTOR PCB are lit but the display signals do not turn on the failure is between the FRONT COLLECTOR PCB and the REAR COLLECTOR PCB or in them Turn off the unit and measure the resistances of wires given in table below If needed check all the wiring from the FRONT COLLECTOR PCB If the signals are OK but the signals on the display do not lit change the REAR CPU FROM TO Front Collector PCB Rear Collector PCB Connector Pin Connector Pin P6 1 GND P10 A 26 P6 2 CDRL P10 A4 P7 1 GND P10 A26 P7 2 CDLL P10 C3 Technical Manual Sophie Mammography X ray unit G 7 Chapter G TROUBLESHOOTING amp FAULTFINDING BEFORE CALLING FOR ASSISTANCE 5 BEFORE CALLING FOR ASSISTANCE 5 1 General required information Check the unit serial number
86. PACKING THE UNIT 202 cece eee eee eee eee B 3 2 4 General about unpacking 0 cee tenes B 3 2 2 Step by step unpacking instructions llle B 3 2 3 Driving the unit out of the transportation position nanea eee eee B 5 2 4 Attaching the unit to the floor 2 0 I B 6 2 5 Unpacking the accessories e B 7 3 ATTACHMENT OF ACCESSORIES lesse B 8 3 4 Compression paddles 2 0 0 0c cect eens B 8 3 2 Remote control attachment optional for the mobile unit B 8 3 3 Mobile Sophie special accessories attachment 000e eee eaeee B 8 3 4 Exposure warning light option llle I B 8 3 5 Printer option suu RR Sas he ey Se he ear EE Yeh tel YE B 8 3 6 ADMARK darkroom film marking system 0 0000 cece eee eee B 8 4 SETUPS AND CHECKS PRIOR TO USE B 9 5 RE PACKING amp TRANSPORTATION OF THE SOPHIE UNIT B 10 5 1 Driving the unit into the transportation position llle B 10 5 2 Transporting the unit on its own wheels non mobile unit llle B 10 6 MOBILE SOPHIE HANDLING amp TRANSPORTATION B 11 6 1 Preparing the mobile unit for use after transportation 20 B 11 6 2 Preparing the mobile unit for transportation llle B 12 Chapter C KEYBOARD FUNCTIONS amp MODES 1 KEYBOARD OVERVIEW en nn hh Rh Rh C 1 2 USER MODE FUNCTIONS
87. PC Adjustment can be done by dragging the dots with left mouse button or by drawing the curve with right mouse button 5 Send the new adjustment values to Sophie from the PC 6 Redo the test exposures 7 Decide if further adjustments are necessary if so go to point 3 Technical Manual Sophie Mammography X ray unit F 25 Chapter F ADJUSTMENT amp CALIBRATION FINE TUNING SOPHIE AEC FOR NONSTANDARD FILM Note that because all the adjustments are interrelated adjusting e g kV compensation may affect thickness compensation it necessary to make full test exposure series after any adjust ments In practice it is probably best to do this so that e g first the thickness compensation is adjusted until the tracking with respect to thickness is acceptable Then the tube potential test exposure series is made and the tube potential compensation is adjusted until the tracking is acceptable in that respect Finally the full test protocol is performed To test that the connection between Sophie and the PC is functioning click the Receive button The status control should briefly display the text Waiting and then text Ready When PC is sending values to Sophie Sophie will confirm the transfer with a beep 4 4 Adjusting the filter and imaging mode adjustments The service mode parameters 34 44 can be used to change the density setting of the AEC according to the operation mode and filter used A positive value wi
88. PLANMED SOPHIE MAMMOGRAPHY X RAY UNIT TECHNICAL MANUAL En 788405 1 1 TABLE OF CONTENTS Chapter A GENERAL amp TECHNICAL DATA 1 WARNINGS 235 oct eR A RESET GR ee A aie wee M Pe A 1 2 MANUAL VERSIONS orici EE ee betas RES A 2 3 UNIT MODELS 2 Sete eere cnn ante icr no rine A 2 4 SOFTWARE REVISIONS amp COMPATIBILITY A 3 5 HOW TO FIND INFORMATION IN THIS MANUAL A 4 6 TECHNICAL SPECIFICATIONS TOSHIBA E7272 X RAY TUBE A 5 7 USER S STATEMENT FOR PLANMED SOPHIE TOSHIBA E7272 X RAY TUBE lees A 7 7 1 Definition of measurement criteria 2 eee A 7 7 2 Toshiba E7272 x ray tube ratings 0 eee eee A 9 7 3 Cooling curves for x ray tube 6 ne A 10 8 TECHNICAL SPECIFICATIONS TOSHIBA E7290 X RAY TUBE A 11 9 USER S STATEMENT FOR PLANMED SOPHIE TOSHIBA E7290 X RAY TUBE eee ee eee A 13 9 1 Toshiba E7290 x ray tube ratingS 0 eee tee A 15 9 2 Cooling curves for x ray tube 2 eens A 16 Chapter B UNPACKING amp INSTALLATION 1 PRE INSTALLATION REQUIREMENTS B 1 1 1 Tools required xi xem eth ances ia i doin ao bad ERES AI B 1 1 2 Environmental requirements 0 0 cee ttt eee B 1 1 8 Space requirement 00 cc en B 1 1 4 Radiation protection ocne orn ena cave IRURE or Re PERS B 2 1 5 Power requirement 000 cece e Re B 2 2 UN
89. PLY See paragraph Power supply fuses on page H 10 for instructions how to replace it If the anode motor starts immediately after turning on the unit then the POWER SUPPLY is faulty and needs to be replaced If the motor seems to accelerate and brake normally to about full stop and the filament definition procedure doesn t help the problem is in the POWER SUPPLY or TUBE CPU The measured phase difference in milliseconds between the two motor windings should be between 4 to 7 milliseconds For additional diagnostic use this measured time difference is dis played on the clock display but only in service mode after an exposure ER27 Compression stepper motor time out The upper compression paddle driving mechanism doesn t reach its limit sensor or the sensor signal is missing There are 3 hall sensors one lower and two upper ones that also have respective indicator LEDs on the FRONT COLLECTOR PCB that should be lit when the mag net is at the sensor The signals reaching the REAR CPU can be monitored in the service mode for easier faultfinding 1 minute time out ER28 Compression force measurement error The REAR CPU is not capable of measuring adjusting the compression force The FORCE SEN SOR PCB and the STRAIN GAUGE sensor are located under the upper compression mecha nism Check the cables and connectors Make a visual check that the strain gauge is properly glued to the surface of the aluminium strain block If no problem with the
90. PU board Technical Manual Sophie Mammography X ray unit D 19 Chapter D HELP AND ERROR MESSAGES DETAILED ERROR MESSAGE EXPLANATIONS D 20 Sophie Mammography X ray unit Technical Manual Chapter E PREVENTIVE MAINTENANCE SYSTEM MAINTENANCE 1 1 Cleaning CAUTION When disinfecting the unit surfaces always disconnect the unit from the mains supply The unit must not be exposed to gaseous disinfectants or explosive anesthetics Never spill any liquids into the unit Compression paddles should not be cleaned using alcohol based solutions The transparent compression paddles as well as the lower compression paddles and BUCKY devices can be cleaned with NON ALCOHOLIC disinfection solutions Never use alcohol based solutions for cleaning the paddles the paddles can become brittle after prolonged cleaning with alcohol based solutions Other unit surfaces With a soft cloth damped in a cleaning solution 1 2 Operator s maintenance schedule a b d e f The following inspections must be performed on a monthly basis by the responsible operator of the unit Exposure indicators Confirm that both exposure indicators lights turns on in the control panels and the remote control for the length of the exposure Check also the optional external indicator if such is attached Audible exposure indicator Confirm that the buzzer comes on for the length of the exposure The lower
91. STMENTS e Place a loaded large cassette crosswise on the cassette table Fig F 5 1 f Select 25 kV AEC small focal spot filter 1 take an exposure and develop the film film B a A B Figure F 5 g Place the film A on the top of the film B Measure the area that has exposed over the cassette table front edge 1 The exposed area must be between 2 mm 4 mm 6 TN S A 2 4mm Figure F 6 h If needed the front edge adjustment is performed by moving the stationary collimator primary front edge Fig F 3 4 F 32 Sophie Mammography X ray unit Technical Manual Chapter F ADJUSTMENT amp CALIBRATION MECHANICAL ADJUSTMENTS Spot collimator adjustment Oo O gQ o e Place a loaded large cassette on a cassette table Fig F 7 1 Select 25 kV AEC spot collimator small focal spot take an exposure and develop the film Check that the exposed area corresponds to the area in Fig F 7 Loosen the spot collimator assembly screws and perform the side direction adjustment Fig F 7 2 The back front adjustment is performed by moving the COLLIMATOR PCB Fig F 7 3 After adjustment make sure that the collimator worm screw nut does not hit the collimator lower frame or stick to the beginning of the worm screw If needed adjust the collimator limit sensors see Collimator mechanism limit sensors on page F 44
92. TL key to exit This key sequence restores the user density display back to zero In many cases there is a slight deviation from the factory preset density compared with the required density This adjustment makes possible to show the user a ZERO density even if the actual density differs from the fac tory default Factory default is O zero To perform this adjustment the AEC mode must first be selected 2 12 AAEC contrast adjustment CO Qu gt Seting in hold for 3 seconds Press the CTL key and then press and hold the automatic manual exposure key for 3 sec onds Use the field light keys to alter the setting The range is from 3 higher kV and less con trast but short exposure times to 3 lover kV and more contrast but longer exposure times Press the CTL key to exit This key sequence fine adjusts the contrast versus exposure time when using the AAEC mode The factory default is 0 zero 2 13 Automatic film labeling on off OCONEE o mi ser hold for OFFL 3 seconds Press the CTL key and then press and hold the right LAT key for 3 seconds Use the field light keys to change the setting The time force display the current setting ON L Labeling on OFF L Labeling off Press the CTL key to exit This key sequence sets the automatic film labeling either on or off It is useful to disable the film marking if another film marking system is used or if the marking system is causing so
93. TOR Measurement procedure OQ O O0 9 gt 0o g h i i Select 30 kV 50 mAs manual exposure and filter 1 30um Mo from the SOPHIE control panel Take an exposure and record the mR reading R normal Place the 0 3 mm aluminum block to the beam just outside the collimator Take an exposure and record the mR reading R with extra AI Calculate the ratio r1 R with extra Al Rnormal Select 30 kV 50 mAs filter 2 0 5 mm Al from the control panel of SOPHIE Take an exposure and record the mR reading Rwith extra AI Remove the aluminum block 0 3 mm from the beam Take an exposure and record the mR reading Rnormal Calculate the ratio r2 Rwith extra Al Rnormal 4 Rejection Limit Both ratios r1 and r2 must be at least 0 51 Technical Manual Sophie Mammography X ray unit E 3 Chapter E PREVENTIVE MAINTENANCE PREVENTIVE MAINTENANCE CHECKS 2 4 Checking X ray tube efficiency radiation output Applicable measurement instruments and tools MDH Model 1515 Radiation monitor MDH Model 1050U Converter MDH Model 10x5 6M lon chamber Preparation for measurement Remove the compression paddle from the X Ray beam and drive Sophie to CC projection Connect the ion chamber to the converter and monitor Place the ion chamber on the image receptor support so that the chamber is exactly in the center of the AEC sensor cover Turn the monitor on by turning the FUNCTION SELECTOR
94. adjusting the screws Fig F 25 2 in the tilting lever assembly Fig F 25 4 so that their ends pass through the assembly about the length of the gap When the adjustment is done in the both sides secure the screws Fig F 25 2 with the nuts Fig F 25 3 i Check the tightness of other nuts in the assembly 3 N O42 Oy P d 07 kg Adjust holders 260997 Figure F 25 Technical Manual Sophie Mammography X ray unit F 51 Chapter F ADJUSTMENT amp CALIBRATION ADJUSTING SENSORS amp SWITCHES 6 3 MAG LOAD mechanism limit sensors NOTE The adjustments described in this section must be performed with extreme caution The wrong adjustment of the limit sensors may cause collision which can cause injury or damage Before adjustment and especially after replacing the limit sensor check the con dition of the limit sensors with a separate magnet Preparations a Drive the C arm to the upright CC position b Enterthe service mode and select the display of internal signals mode 04 see SERVICE MODE FUNCTIONS SHORT FORM on page C 4 Fig F 26 1 Checking the limit sensors a Drive the cassette table to the upper position Mag up with field light keys Fig F 26 2 and check that the right upper signal Fig F 26 3 on the display lights When driving the cassette table the left middle signal Fig F 26 7 on the display should blink b Drive the cassette table to the lower positio
95. age F 23 F 24 Sophie Mammography X ray unit Technical Manual Chapter F ADJUSTMENT amp CALIBRATION FINE TUNING SOPHIE AEC FOR NONSTANDARD The software should appear as illustrated below fe Mammotool Oix File Time compensation s Thickness compensation cm p 3 p p75 p76 pi p64 p65 p66 p67 p68 p69 p70 pil p 2 0 5 eo ees EE Voltage compensation kV p48 p49 p50 p51 p52 p53 p54 p55 p56 p5 p58 p59 p60 p61 p62 p63 t 1 0 2 0 40 c Q 1 e 10 20 30 40 50 60 70 80 S3 Status Send Receive ort Q DE E E aq n3 oO n3 NM O n3 n3j Q g e r3 o 24 n3 e n3 wa n3 eo n3 e e EH e e The MAMMOTOOL software has three main functions receive modify and send back the cur rent AEC compensation values to and from the Sophie In addition to that the current values can be saved loaded to from the PC hard disk which makes it possible for the service technician to collect settings on his her PC hard disk This is handy if for example the CPU board must be changed in which case all the AEC adjustments will be lost The basic procedure for adjusting the AEC is the following 1 Make test exposures 2 Load the current setting from Sophie to PC 3 Decide based on point 1 what kind of adjustments are required 4 Make the adjustments on the
96. alue ODO In service mode press the CTL key the density up key and then the CTL key to display the real density setting without the zero compensation can be set in the user mode 44 Displaying the exposure counter WR COD 1437 kg ELE Number of exposures 10 In the service mode press the CTL key and then press the mAs up key The time force dis plays shows the number of exposures divided by ten 10 Press the CTL key to exit from this mode In the example above the actual number of exposures is c 14 370 The capacity of the counter is 50 000 exposures after which it is cleared and starts again from zero Remember that the exposure counter memory is on the REAR CPU replacing it also means that you loose the current exposure counter data The exposure counter can be cleared together with the error message list but only by PLANMED Spare REAR CPU boards have the exposure counter cleared at the factory 4 5 Sapa the recent 49 error messages TOONT 21 hold for 3 seconds In service mode press the CTL key and then press and hold the left OBL key for 3 seconds Use the field light keys to scroll through the list The left field light key steps backwards in the list and time the right field light key steps forward in the list Press the CTL key to exit this mode The list is always shown in chronological order by date time The maximum length of the list is 49 error messages The oldest ones are dropp
97. amp TRANSPORTATION OF THE SOPHIE UNIT 5 RE PACKING amp TRANSPORTATION OF THE SOPHIE UNIT 5 1 Driving the unit into the transportation position 8 b CAUTION Make sure that there is enough room around the unit so that the C arm can rotate without hitting any obstacles Drive the unit to the transport position by pressing the CTL key and then pressing and holding the CC key for four seconds m Ce hold for 3 seconds If you are going to re pack the unit the C arm locking knob must be inserted to the unit s base before driving the unit to the transport position After driving the unit to the transport position drive the C arm to its lowest position with the C arm cassette table down switch Do not rotate C arm in its lowest position after the C arm locking knob has been inserted to its place 5 2 Transporting the unit on its own wheels non mobile unit NOTE Make sure that the unit is in the transport position The transportation handle must be attached if not please see paragraph Step by step unpacking instructions on page B 3 for details how to attach the handle Turn off the unit and unplug it from the mains Tilt the unit carefully to the rear by pulling from the handle while supporting the base from moving by your foot until you reach the point of balance Carefully wheel the unit to the place where it s going to be re packed Always avoid rough handling such as running the unit over t
98. and HELP messages are not stored in the list since they are not categorized as a device malfunction Please see the detailed error description list for details If the unit is reporting error messages not found in this manual please contact your Planmed dealer for a never revision of the Technical Manual Technical Manual Sophie Mammography X ray unit D 1 Chapter D HELP AND ERROR MESSAGES HELP MESSAGES SHORTFORM TABLE 2 HELP MESSAGES SHORTFORM TABLE The following is a list of all currently available HELP messages These messages appear on the TIME FORCE display if a key without any function is pressed or if the function is not allowed for some reason The HELP message disappears automatically when the key is released Help messages in the range from 1 to 9 have the same meaning than the respective error codes Table 13 Help messages shortform table HE REASON ACTION HE 1 Magnification is not allowed with a Bucky grid Remove the Bucky grid first HE2 Bucky is not correctly positioned or properly inserted Check that the guide pins are firmly inserted into the unit HE 4 The cassette is not properly positioned into the Push the cassette against the labeling head holder HE 5 The cassette has not been removed since the previ Remove and reload with a fresh film double expo ous exposure sure prevention warning HE 6 The cassette table is
99. at the top cover fastening screws are at the same level as the cover surface f Adjust with the holding screws Fig F 37 6 the labeling head in front back direction Fig F 37 7 so that the cassette is firmly against the labeling head frame g Check that the cassette is firmly against the cassette table Checking the microswitches a Small cassette microswitch e Pull the labeling head to the front position small cassette Theright lower signal Fig F 38 2 on the display should light when the labeling head is 5 10 mm from the extreme position Small cassette 290997 Figure F 38 F 62 Sophie Mammography X ray unit Technical Manual Chapter F ADJUSTMENT amp CALIBRATION ADJUSTING SENSORS amp SWITCHES b Large cassette microswitch Push the labeling head to the back position large cassette e The right upper signal Fig F 39 2 on the display should light when the labeling head is 5 10 mm from the extreme position Large cassette 290997 Figure F 39 C Cassette in position Labeling head microswitch e Press the sensing button Fig F 40 1 and check that the right middle signal Fig F 40 2 on the display lights Cassette in position 290997 Figure F 40 d If some of the signals on the display does not light see Paddle holder related on page G 6 Technical Manual Sophie Mammography X ray unit F 63 Chapter F ADJUSTMENT amp CALIBRATION ADJUSTING S
100. ature sensor open circuit Please see ER53 ER55 C ARM upright position sensor failure The ROTATION REFERENCE PCB in the rear of the moving column is not functional or there is a problem in the wiring Check the cable from the REAR COLLECTOR PCB to the ROTATION REFERENCE PCB This PCB has two LED indicators one for power the other for the signal Please note that this sensor gets power only during the operation or the rotation motor during service mode the sensor is powered constantly ER56 Compression mechanism RELEASE sensor failure Occurs only during calibration There is no signal from the release sensor ER57 Exposure switch failure short circuit during self test Check the external exposure switch and remote control box cables for damage or short circuit Disconnect the remote cable from the unit If the error still occurs the problem is internal Check the wiring from the remote connector in the base to the BASE PCB and the wires from here to the REAR COLLECTOR PCB Replace the REAR CPU as the last remedy The switch signal can be displayed also in the service mode ER58 Foot control switch failure short circuit during self test Any of the foot control switches was activated during the self test Check for mechanical damage on the switches There are status indicators LEDs on the BASE PCB that can be used for fault finding The foot control switch signals can be also displayed in the service mode Technical Ma
101. b Turn off the power Wait for two minutes before proceeding NOTE The connectors in the power supply and tubehead can be damaged the removal and replacement of the power supply must be performed with extra care Make sure that the fixing screw of the power supply does not bend Do not tighten the nut too tight to avoid the fixing screw to rotate or break in the tubehead c Support the power supply Fig H 19 1 with the other hand while removing the nut Fig H 19 2 d Pull the power supply straight out Figure H 19 e Replace the new power supply in reverse order H 18 Sophie Mammography X ray unit Technical Manual Chapter H PARTS REPLACEMENT amp REPAIR REPLACING CIRCUIT BOARDS 7 REPLACING CIRCUIT BOARDS NOTE The circuit board holder breaks easily The replacement of the circuit board must be per formed with extra care CAUTION After replacing the board make sure that the cables are connected to the right connectors Wrong connections may risk patient and operator safety and damage the unit When removing the circuit board press the PCB holder tongue Fig H 10 1 carefully and lift the board from its place Fig H 10 2 Make sure that the tongues lock the board to the board supports when replacing the board a s q Tr NYY Figure H 20 7 1 Location of PC boards Base PCB Remote control PCB Rotation reference PCB Sync PCB Rear processor PCB Rear collector PCB Display PCB She
102. ble edges are not firmly against the cassette side There are two microswitches under the cassette table indicating that the table is in either extreme position Check that nothing is obstructing the table movement If however this error appears even if the cassette table is fully in either extreme position then there is a problem with the switch es or in the cabling The switch signals can be monitored in the service mode for easier faultfinding Check the condition of the microswitches and that all cables and connectors are firmly connected The signals goes from these switches through the SHELF COLLECTOR PCB to the TUBE CPU ERO7 Cassette size identification problem A large cassette is not allowed with a small lower compression paddle The side edges of the narrow compression paddle would interfere with the cassette table If you use an allowed combi nation or no lower compression paddle at all and this error still occurs then there is a problem in either the paddle size recognition or the table position recognition Make the same tests as in errors ERO2 and or EROG ERO8 Cassette size identification problem A small cassette is not allowed with a large lower compression paddle The film labeling device is so much forward that it would collide with the lower compression paddle If you use an allowed combination or no lower compression paddle at all and this error still occurs then there is a problem in either the paddle size recognition
103. carefully before sticking the new membrane B Figure H 25 H 22 Sophie Mammography X ray unit Technical Manual Chapter H PARTS REPLACEMENT amp REPAIR REPLACING SENSORS amp SWITCHES 8 REPLACING SENSORS amp SWITCHES 8 1 Placement of sensors amp switches o a wo al a 6 P Mis 4 3J Lu ny AWS BR esee i B Back Front 2 hall sensor magnet holder microswitch Figure H 26 1 Compression mechanism limit sensors 7 Cassette table size identification microswitches 2 MAG LOAD mechanism limit sensors 8 Lower paddle identification microswitches 3 Motor rotation sensor 9 Cassette table control microswitches 4 C arm rotation sensor 10 Exposure control microswitch 5 UP DOWN mechanism sensors 11 Emergency stop microswitch 6 C arm control microswitches 12 Foot pedal microswitches Technical Manual Sophie Mammography X ray unit H 23
104. cial system parameter 9 value downwards see section 09 Film screen combination O zero gain on page F 17 If the film density level is too low adjust the special system parameter 9 value upwards Repeat this until you have reach the desired density Note that if the density is too large with one parameter value and too small with the next one it can not be corrected at this point e Adjust the film screen combination steepness take one test exposure with a 40 mm thick plexiglass phantom using the density value 0 and a second exposure using density value 1 If the density change between these two films is smaller than 1396 adjust the special system parameter 10 upwards see section 10 Film screen combination 0 zero steepness on page F 18 If the density change between these two films is larger than 13 adjust the spe cial system parameter 10 downwards Repeat this until you have reach the desired density step e Fine tune the film density with the special system parameter 13 see section 13 Density fine adjustment sensor 1 on page F 18 b Printer Label type option Ignore this setup if you do not use a printing device attached directly to the Sophie unit One of three different printer systems can be used For printer type selection see 11 Setting type of printer and or height of labels used on page F 18 for details F 2 Sophie Mammography X ray unit Technical Manual Chapter F ADJUSTMENT amp CALIBRATION
105. ctions of the Star Pattern Repeat the procedure for both focal spots Because the focal spot size variations that depend on the used kV and mA are compen sated for in Sophie it is not necessary to perform the focal spot size measurements at different technique factors Rejection Limit If the focal spot dimension tolerances exceed the tolerances defined in IEC336 standard the tube head must be replaced The nominal sizes are 0 3 x 0 3 mm for large and 0 1 x 0 07 mm E7272 tube 0 1 x 0 1 mm E7290 tube for small focal spot E 4 Sophie Mammography X ray unit Technical Manual Chapter E PREVENTIVE MAINTENANCE PREVENTIVE MAINTENANCE CHECKS 2 6 Image quality evaluation Applicable measurement instruments and tools RMI Model 156 Mammographic Accreditation Phantom Preparation for measurement Drive Sophie to CC projection and place a loaded film cassette in place Select proper exposure factors to achieve right film density for example Advanced AEC mode on and select for 27 kV Select for AEC sensor 2 For better contrast adjust the dose contrast of the Advanced AEC mode to the maximum contrast setting Measurement Procedure Please follow the operation instructions given in the Phantom User Manual Verify that the Phan tom is placed to cover the sensor 2 completely Repeat the procedure for both focal spots Rejection Limit The score is calculated as instructed in the Phantom s User Manual A minimum score of 10 for fibrils 8
106. d for opening the packaging crate and millimeter based Allen keys is about what you need Other tools Please refer to chapter PREVENTIVE MAINTENANCE CHECKS on page E 2 for details of test instruments needed for the installation check up 1 2 Environmental requirements Strength requirement for the floor The weight of the unit approx 160kg is moderate and does not cause any special requirements for the strength of the floor However the floor must be straight within 0 5 The stationary unit has four small feet in the base that can be adjusted to level the unit if the floor is uneven The unit should never be placed on thick carpets for stability and reliability reasons Antistatic floor materials should be preferred Temperature amp Humidity The operating temperature range is from 15 C to 35 C non condensing The acceptable humidity range is from 2596 to 75 The storage temperature range is from 0 C to 45 C NOTE If the unit has been stored at temperatures under 10 C for more than a few hours time must be allowed for the unit to reach room temperature before turning it on 1 3 Space requirement Width of door openings The unit can be transported on its wheels through door openings that are 76 cm wide Minimum and recommended Height amp Width The following illustration shows the absolute minimum space requirement of the Sophie unit The texts in the following picture indicates the minimum recommended space
107. d to end Performing the calibration In the service mode press the CTL key and then press and hold the release key for 3 seconds Wait for the movement sequence to end NOTE For a more precise breast thickness display the residual gap between the upper and lower compression paddles can be compensated for Please see page F 19 special system parameters how to correct or zero the display reading F 12 Sophie Mammography X ray unit Technical Manual Chapter F ADJUSTMENT amp CALIBRATION KEYBOARD CONTROLLED in service mode 3 5 Compression force measurement calibration eis Con a gt hold for 3 seconds gt 1i5kg gt en Why and when to calibrate This calibration must be performed whenever the REAR CPU and or the COMPRESSION FORCE sensor is replaced with another one or whenever there is doubts about the measure ment accuracy The calibration is performed by the REAR CPU which stores the parameters on board nonvolatile EEPROM memory Instruments and tools required You need a small accurate scale of the bathroom type or equivalent or preferably a compression calibration gauge accessory part number 7003030 Performing the compression force measurement calibration 8 b CAUTION NOTE Remove the lower compression paddle BUCKY and cassette but not the upper compression paddle Place the gauge or scale in line with the front edge of the cassette table If you use a scale place
108. default is 5 seconds This feature changes the duration of the filter selection time out in the AEC mode The rhodium filter is automatically changed to the molybdenum filter if the kV value goes below 27 kV The filter is changed after this preset time or when the exposure switch is pressed 19 Number of spacing rows in the serial printer n number of spacing rows between labels Setting in 19 n kg range 0 20 one step equals one row this unit This feature changes the number of spacing rows between the labels printed with the serial printer 20 Mode of MAG LOAD and release operations n 0 normal operation Tn 20 n kg n 1 manual MAG LOAD operation d UE n 2 manual MAG LOAD and release f operations a nz0 normal MAG LOAD and release operations The factory default is n 0 b nzt manual MAG LOAD operation The MAG or LOAD key must be pressed and held down to move the C arm The AUTO LOAD can not be selected The REL key operates normally c n22 manual MAG LOAD and release operations The MAG or LOAD key must be pressed and held down to move the C arm The REL key must be pressed and held down to drive the compression paddle open The AUTO release can not be selected 21 Speed of rotation motor n speed of rotation movement mp 21 n kg speed range from 1 slowest to 6 fastest in factory preset is 4 22 HE 37 disabled enabled n 0 HE37 disabled
109. des the CTL key LED is kept blinking as a reminder to press the CTL key again to exit The following table is a short form of all available special service mode keyboard functions Enter the service mode first before performing any of the mentioned functions see page C 4 Table 12 Service mode keyboard function short form SERVICE MODE KEY SEQUENCE IN SERVICE MODE FORIDETAILSIELEASE FUNCTION REFER TO DISPLAYING A Display of internal temper INTERNAL mode gt atures on page C 7 TEMPERATURES f C ARM UPRIGHT EET C arm upright position POSITION mode gt Ce B gt calibration on page F 12 CALIBRATION as hold for 3 seconds BREAST ee Breast thickness mea THICKNESS mode Cen gt surement calibration on MEASUREMENT hold for page F 12 CALIBRATION 3 seconds COMPRESSION one Compression force mea FORCE mode gt a Cu gt surement calibration on MEASUREMENT page F 13 CALIBRATION RELAT SPECIAL SYSTEM Aes Special system parame PARAMETERS mode gt Cy gt gt Gian s gt Cm ters setup on page F 17 hold for trs 3 seconds X RAY TUBE em X ray tube filament pre FILAMENT mode GV gt C4 gt heating voltage calibration VOLTAGE hold for on page F 14 tube type 3D e BED large focus bias setting hold until Omm m small focus bias setting i exit without programming Technical Manual Sophie Mammography X ray unit C
110. e is 21 mm and should cover even the most strict requirements Movable shields Radiation shields are also available Please refer to the SPARE PARTS MANUAL 1 5 Power requirement Mains voltage amp frequency Nominal operating voltage can be from 208 240 V single phase either between the phases or between one phase and neutral The built in line voltage compensation ensures proper operation within 10 fluctuation 187 265 V The mains frequency can be either 50 or 60 Hz 10 Fuse ratings The minimum recommended external fuse rating is 15 AT time lag Electromagnetic circuit breakers can be used since the units power factor is 20 95 The unit is also protected internally with 15 AT fuses Mains impedance amp earthing To ensure proper operation over the recommended mains voltage range the resistance of the mains should not exceed 1 O The unit must be connected to an earthed outlet Typical power consumption The idle power consumption is less that 100VA The maximum power consumption is worst case 4000VA for a maximum of 5 seconds Toshiba E7272 tube at 27kV 110mA exposure settings Toshiba E7290 tube 33kV 97mA exposure settings B 2 Sophie Mammography X ray unit Technical Manual Chapter B UNPACKING amp INSTALLATION UNPACKING THE UNIT 2 UNPACKING THE UNIT 2 1 General about unpacking Unpack the unit indoors in a convenient place preferably as close as possible to the final instal lati
111. e single screw Fig H 10 3 holding the Tube CPU board Fig H 10 4 in place and carefully remove the board by first pulling it from the edge connector until it opens Replace the software chip Replace the board and make a brief check with the power connected to see that the unit passes the self test Replace the covers in reverse order Technical Manual Sophie Mammography X ray unit H 9 Chapter H PARTS REPLACEMENT amp REPAIR REPLACING FUSES 3 REPLACING FUSES AN WARNING Always replace the fuse with the same type and rating Failure to do so may risk patient and operator safety There are only 4 replaceable fuses in the whole unit Two of these are in the incoming mains lines and two are inside the Power supply for internal protection When checking the condition of a fuse always use an ohmmeter or equivalent to check the conductivity Never trust your bare eyes a fuse might be blown even if it looks to be OK 3 Mains fuses Rating 15 AT 250V slow blow glass body 6 x 30 mm 2 pieces or only 1 fuse in some models Location The mains fuses are accessible from the outside and they are placed at the rear of the unit close to the mains switch Figure H 11 Purpose The purpose of the mains fuses is to protect the unit in case of an internal short circuit or electri cal failure These fuses guarantee efficient protection even if the fuses in the external fuse box are rated too high 3 2 Powe
112. e software on such a board the ER61 could be an indication that the jumper is in the wrong position ER62 Failure in communication between REAR CPU and external device If this error occurs after replacing a software chip please check that the chip is correctly inserted in the socket and the new software is compatible If this error occurs intermittently check the external wiring Possible open circuit or bad connection in the serial communication wire between the REAR CPU and an external device Trace the SLL named line from the REAR CPU to the remote device If everything seems to be OK check also for possible short circuits then replace the REAR CPU ER63 Error in STOP communication line between TUBE and REAR CPU Possible open circuit or bad connection in the serial communication wire between the two pro cessors Trace the STOP named line from the REAR CPU to the TUBE CPU If everything seems to be OK check also for possible short circuits then replace the TUBE CPU or the REAR CPU in this order ER64 Error in Exposure communication line between TUBE and REAR CPU Possible open circuit or bad connection in the serial communication wire between the two pro cessors Trace the Exp named line from the REAR CPU to the TUBE CPU If everything seems to be OK check also for possible short circuits then replace the TUBE CPU or the REAR CPU in this order Er68 Both switches paddle down and paddle up of one foot control are pres
113. echnical bulletins for complete software compatibility lists Never put the chip intended for the Tube CPU to the Rear CPU or vice versa There is no risk for damage but neither will there be any operation 2 1 Replacing software chips Replacing the Rear CPU software a Remove the telescopic column rear panel see Telescopic column covers on page H 2 b Drive the telescopic column to the position where you can reach the Rear processor PCB Rear CPU 071097 Figure H 9 C Drive the C arm to 90 Fig H 9 1 for easier access d Turn off the power e Replace the rear cpu chip Fig H 9 2 f Replace the removed parts turn on the power and check that the unit is functioning H 8 Sophie Mammography X ray unit Technical Manual Chapter H PARTS REPLACEMENT amp REPAIR SOFTWARE VERSION UPDATING Replacing the Tube CPU software a b Drive the C arm to upright position Turn off the power and unplug the unit Wait for 2 minutes before proceeding Remove following covers C arm top cover C arm lower cover and C arm vertical cover see instructions described in section C arm covers on page H 4 Classic tube chip 170697 Figure H 10 Remove the two screws and washers Fig H 10 2 of the power supply cover Fig H 10 1 Remove the cover Remove th
114. ect the right and left keyboard cables from respective Display PCB d The hood can be removed Classic repl Keyboard 210497 Figure H 6 H Sophie Mammography X ray unit Technical Manual Chapter H PARTS REPLACEMENT amp REPAIR REMOVING amp REPLACING COVERS 1 6 Cassette table cover a Unscrew the AEC sensor assembly screws 4 pcs Fig H 7 1 b Unscrew the table cover screws 6 pcs Fig H 7 2 C Disconnect the labeling head cable from SHELF COLLECTOR PCB d Lift up the table cover slightly and pull it from the table casting Fig H 7 3 Figure H 7 1 7 Collimator cover a Remove the collimator cover screws b Remove the cover Figure H 8 Technical Manual Sophie Mammography X ray unit H 7 Chapter H PARTS REPLACEMENT amp REPAIR SOFTWARE VERSION UPDATING 2 SOFTWARE VERSION UPDATING CAUTION _ The software chips are sensitive to static electricity Follow normal handling precautions for static sensitive circuits The chips should shipped stored and handled only in anti static packaging materials Make sure that the chip is put into the socket in right orientation otherwise immediate chip damage will occur when turning on the power Never power on the unit with a software chip removed from the socket s NOTE The softwares used in the Rear CPU and Tube CPU must be compatible softwares with the same version number are always See the published t
115. ed off the list if the list is full and there are new errors that needs to be stored The list is shorter if there are less than 49 error messages store It also wraps around from the newest to the oldest error message if you continue pressing the field light keys The error list can be cleared together with the exposure counter but only by PLANMED The error message list is stored on the REAR CPU replacing this also means that you loose the error history data Spare REAR CPU boards have the error list cleared at the factory C 8 Sophie Mammography X ray unit Technical Manual Chapter C KEYBOARD FUNCTIONS amp MODES SERVICE MODE FUNCTION DETAILS kV setting used mA setting used Sensor used The message EE instead of an error number does not indicate an error It indicates the date and time when the error list was erased EE errors erased See the picture below for more details of the error message displays BA Ca Ce Cr Ca D G51 1G lt gt Cs CL OUG Date of oceurence _Jw __Je fee tree Erased z Exposure mode used A S C Focus size used 4 6 Print a list of the recent 49 errors service hold for mode 3 seconds In the service mode press and hold the left OBL key for 3 seconds to print the complete error list on an optional printer The printing cannot be aborted Briefly turn off the printer to st
116. ee movement with respect to Tele scopic column installation plate Rotation reference circuit board and the cables Check that the Rotation upper hall sensor does not hit the spacer Technical Manual Sophie Mammography X ray unit F 57 Chapter F ADJUSTMENT amp CALIBRATION ADJUSTING SENSORS amp SWITCHES 6 6 UP DOWN mechanism sensors Preparations a Remove the necessary covers see instructions described in chapter H sections 1 1 1 2 and 1 3 b Checkthat the mechanical limits of the lift motor Fig F 33 1 and Fig F 35 2 are in their positions Checking the Lift down limit sensor a Enterthe service mode and select the display of internal signals mode 05 Fig F 33 3 b Drive the moving column to the lower limit with the C arm up down switches Fig F 33 4 c Check that the right lower signal on the display 5 lights when the worm screw nut Fig F 33 6 is at 4 5 x 0 5 mm space from the spacer Fig F 33 1 Classic up down sensors150497 Figure F 33 AN C 1 05 3 NL kg x 4 F 58 Sophie Mammography X ray unit Technical Manual Chapter F ADJUSTMENT amp CALIBRATION ADJUSTING SENSORS amp SWITCHES NOTE d Ifthe space differs from 4 5 0 5 mm adjust the magnet holder s nut Fig F 34 1 so that the right space is reached e Press the spindle down and take a hold of the spindle arm with the clamp and scr
117. een the two different internal temper ature displays The temperature of the TUBE HEAD housing is shown in the time force display when the CTL key led is off the display shows the temperature in degrees Celsius The temper ature of the POWER SUPPLY heatsink is shown when the CTL key led is on the display shows the temperature in degrees Celsius and the P letter as an indication of P ower supply temper ature This temperature display has the lowest priority It could be sometimes replaced by other more important displays in the service mode such as magnification ratio waiting time etc The TUBE HEAD temperature slowly increases about 10 C to 15 C above the ambient tempera ture even if the unit stands idle This is fully normal since the POWER SUPPLY is using the housing of the TUBE HEAD as it s heatsink The POWER SUPPLY heatsink temperature slowly increases about 10 C to 15 C above the TUBE HEAD temperature even if the unit stands idle This is fully normal since the thermal con tact from the power supply to the TUBEHEAD is not ideal but fully sufficient for effective cooling of the power supply If the temperature of the POWER SUPPLY heatsink increases more than mentioned it could indicate that the power supply is not properly tightened into its place Technical Manual Sophie Mammography X ray unit C 7 Chapter C KEYBOARD FUNCTIONS amp MODES SERVICE MODE FUNCTION DETAILS 4 3 Displaying the real density v
118. egion to region Also after replacing either the TUBE CPU or the REAR CPU board these setups must be verified and some keyboard controlled calibrations performed The list below a to e are adjustments that must always be performed before using the unit for the first time There is also a number of other adjustments that affect the behavior of the unit These are preset at the factory to convenient values so no readjustment is normally needed However chapters KEYBOARD CONTROLLED in normal mode on page F 3 and KEY BOARD CONTROLLED in service mode on page F 8 contain full details of all available key board controlled adjustments Maximum allowed mAs The maximum allowed mAs milliampereseconds can either be 300 mAs 500 mAs or 600 mAs See paragraph 06 Maximum regional mAs limit on page F 17 for details Maximum allowed breast compression force The unit is capable of compressing the breast up to 25kg 20kg is the factory default If this limit needs to be changed please see paragraph 01 Maximum compression force on page F 17 for details Enable disable height control during compression The unit is delivered so that the height control is inoperative if the breast is compressed See paragraph 04 Mode of UP DOWN movement on page F 17 for instructions how to change this behavior Enable disable C arm rotation without foot control activation Some countries require that the C arm motorized movement is not allowed
119. ehead a Drive the C arm to the upright CC position Adjust the height of the unit so that the top of the C arm is at a convenient working level Turn the unit off and unplug it from the mains b Remove the C arm covers see section C arm covers on page H 4 C There are two possible C arm positions the upright position and slightly past horizontal position e When the C arm is at he upright position you need always a locking device Attach the lock ing device to the bearing shaft Fig H 15 1 It prevents the tubehead to fall down when opening the MAG mechanism thread Fig H 15 a NOTE Failing to obey this rule can cause injury when opening the MAG mechanism thread e f you don t have the locking device turn on the power for a while and drive the C arm little more that 90 degrees slightly past horizontal so that the cassette table is slightly higher that the tubehead Drive the cassette table to MAG 1 06 position Turn off the power and unplug the unit Fig H 15 b Figure H 15 H 14 Sophie Mammography X ray unit Technical Manual Chapter H PARTS REPLACEMENT amp REPAIR REPLACING THE X RAY TUBEHEAD d Remove the power supply see section REPLACING THE POWER SUPPLY on page H 18 Figure H 16 e Unscrew the power connector bracket and remove the mains connector Fig H 16
120. em tact view position HE34 The C arm is not allowed to continue to rotate with Press and hold down any of the foot controls other out pressing any of the foot controls in the STEREO wise the C ARM will not rotate The patient may TACTIC mode remain in position HE35 You can not select the Automatic paddle release HE36 You have to release the upper compression paddle Press and hold down the REL key until the upper before selecting the exposure view compression paddle has reached its highest position HE37 The bucky grid is not connected Connect the bucky grid HE39 The AAEC mode is not allowed with current kV set Increase the kV setting first if you wish to use AAEC ting OR A lower kV setting is not allowed with the AAEC HE40 The advanced AEC mode can not be used with the Select the molybdenum filter aluminium filter Technical Manual Sophie Mammography X ray unit D 3 Chapter D HELP AND ERROR MESSAGES 3 ERROR MESSAGES SHORTFORM TABLE The following is a list of all currently available error messages For a detailed discussion about fault finding please refer to paragraph TROUBLESHOOTING amp FAULTFINDING on page G 1 NOTE Error messages marked with an asterisk are not stored in the internal error list These error share the same meaning as the respective HELP messages Table 14 Error Codes Short Form Table
121. ensor in the EEPROM memory There are two different types of C arm rotation sensors The HEDS type rotation sensor is nowa days standard in all units If the EEPROM memory contains a wrong sensor type the C arm upright position must be calibrated See section C arm upright position calibration on page F 12 for details how to calibrate the position 4 10 ERRORS 90 97 Erroneous sensor signals ER90 Wrong type of rotation sensor in C arm rotation motor during STEREOTACTIC The STEREOTACTIC system requires that the C arm rotation motor is equipped with a HEDS type rotation sensor the small black bow at one end of the motor This sensor is nowadays standard in all units with or without STEREOTACTIC added However the traditional motor rota tion sensor the internal non visible HALL sensor cannot be used in units with the STEREOTAC TIC system installed See Lift motor replacement on page H 26 for details how to replace the motor ER91 Error in STEREOTACTIC system sensor signals The two end limit sensor signals cannot be active simultaneously mechanically impossible If this would still happen then this error is generated Check the sensors and the wiring The sen Sor signals are visible on LEDs on the SHELF COLLECTOR PCB and can also be displayed in the service mode ER92 Error in MAG LOAD mechanism sensor signals The two end limit sensor signals cannot be active simultaneously mechanically impossible If this would still ha
122. ep equals 2 6 of OD Ne 1 5 of the coarse density control setting The factory default is n 0 no adjustment Use this fine adjustment to fine tune the film density for sensor number 3 if one normal density step is too coarse 45 Mode of the OBL key operation n 0 DEX MLO view is selected when Setting i 45 n kg the left OBL key is pressed and SIN MLO belek this unit view is selected when the right OBL key is pressed n 1 SIN MLO view is selected when the left OBL key is pressed and DEX MLO view is selected when the right OBL key is pressed The factory default is n 0 46 Maximum kV value in AAEC mode n maximum kV value tting i 46 n The range is from 30 kV to 35 kV ae Kg Factory preset is 35 kV Technical Manual Sophie Mammography X ray unit F 21 Chapter F ADJUSTMENT amp CALIBRATION 47 Mode of LOAD ready movement oi n 0 Driving the cassette table by using the Setting in 62n foot control is prohibited this unit s n 1 Driving the cassette table by using the foot control is allowed If a cassette is loaded and the film has been changed after the previous exposure cassette has been removed between the exposures a short push of the outer corner of the foot control drives the cassette table from the LOAD position to the READY position The factory default is 0 48 77 Parameters transformed from the Mammotool software So
123. etrical and stays within tolerances e Check the field sizes using film procedure 3 2 Measurement procedure using x ray film a Place a loaded large cassette on the image receptor support so that it overhangs 10 mm on the chest wall edge of the support b Place a ruler 20 mm back from the chest wall edge of the cassette 10 mm back from the actual chest wall edge of the film C Select 25 kV 20 mAs and take an exposure and develop the film d Measure the unexposed areas on both sides of the film R and L e Measure the exposed area between the ruler and the chest wall edge of the film and subtract 10 mm from it F This number F is zero if the x ray field is flush with the film and 3mm if it extends 3 mm beyond the film f Repeat the above procedure using the small cassette Rejection limits For the chest wall edge the x ray field must cover the whole film but must not extend beyond the chest wall edge more than 3 mm For all other edges the unexposed area must be between 1 mm 4 mm 3 7 Verifying light field beam illumination Applicable Measurement Instruments and Tools e Delta Ohm Model HD8366 Lux meter Measurement procedure a Remove the additional light limiter in the measuring device so that full field size of the equipment is used b Divide the image receptor support into four equal quadrants E 10 Sophie Mammography X ray unit Technical Manual Chapter E PREVENTIVE MAINTENANCE OTHER PREVE
124. ew the nut to the right position on the spindle thread e Check that the spindle moves freely in the casing and returns to its upper position with its spring Figure F 34 The sticking of the magnet holder to the lower position may cause injury or damage e Place the magnet holder to its position and check that the 4 5 mm space is left between the spacer and the worm screw nut If not readjust the magnet holder Checking the Lift up limit sensor a Checkthe Lift up limit sensor in the same way as the Lift down limit sensor b Check that the right upper signal on the display Fig F 35 1 lights when the worm screw nut Fig F 35 2 is at 4 5mm 0 5 space from the worm screw cap Fig F 35 3 05 Ve 1 ee V Classic up down sensors u150497 Figure F 35 Technical Manual Sophie Mammography X ray unit F 59 Chapter F ADJUSTMENT amp CALIBRATION ADJUSTING SENSORS amp SWITCHES Checking the lift reference sensor a Drive the C arm to the PA position b Enter the service mode and select the display of internal signals mode 05 Fig F 33 3 c When the detector plate Fig F 36 1 hits the opto sensor on the lift reference PCB Fig F 36 2 the right middle segment lights d Adjust the position of the detector plate as follows standard Sophie unit e Insert the C arm locking knob to the unit s base Drive the C arm down
125. f a mechanical electrical or sensor failure See paragraph MOTOR amp MOTION RELATED PROBLEMS on page G 2 for detailed descriptions for faultfinding See paragraph ADJUSTING SENSORS amp SWITCHES on page F 44 for detailed instructions how to adjust the hall sensors ER20 Mirror stepper motor time out The mirror driving mechanism inside the collimator assembly doesn t reach its limit sensor or the sensor signal is missing The sensor is located on the COLLIMATOR PCB that also have an indi cator LED that should be lit when the magnet is at the sensor The signal reaching the TUBE CPU can be monitored in the service mode for easier faultfinding Check the position of the mag net and sensor if the mechanism seems to work properly D 10 Sophie Mammography X ray unit Technical Manual Chapter D HELP AND ERROR MESSAGES DETAILED ERROR MESSAGE EXPLANATIONS There could be a fault on the TUBE CPU PCB stepper motor driver electronics if this error always occurs after turning on the unit and there is no sound from any of the stepper motors inside the beam limiting device especially if the mirror mechanism and sensors seems to be OK The unit performs a test sequence at power up starting with the mirror motor If the stepper motor control electronics on the TUBE CPU is faulty then no other stepper motors filter collimator labeling disk bucky stereotactic could either be driven Since the test fails at the first motor mirror mot
126. further exposures are allowed until it falls below 60 C The other method keeps the average input power into the tube below or equal to 500W The exposure parameters are limited as indicated by the following table but this feature forces a wait ing time between the exposures to ensure that the average power into the tube never can exceed this limit For example if an exposure of 24 kV 100 mAs is performed a wait period of 5 seconds is calculated and no further exposures are allowed until this time has elapsed There is no way to bypass these safety feature under any circumstances and it is thus virtually impossible to overload the X ray tube Technical Manual Sophie Mammography X ray unit A 15 Chapter A GENERAL amp TECHNICAL DATA USER S STATEMENT FOR PLANMED SOPHIE TOSHIBA Table 3 Maximum mA for Tube E7290 vs different modes MANUAL EXPOSURE MODE AUTOMATIC AEC EXPOSURE MODE Large focal spot Small focal spot Large focal spot Small focal spot 0 3 mm 0 1 mm 0 3 mm 0 1 mm 0 1 1 5 1 6 0 5 gt 5 0 1 0 45 5 0 45 6 0 5 2 45 10 kV sec sec sec sec sec sec sec sec sec sec 20 80 80 80 20 20 80 80 80 20 20 21 84 84 84 21 21 84 84 84 21 21 22 88 88 88 23 23 88 88 88 23 23 23 92 92 92 25 25 92 92 92 25 25 24 96 96 96 27 27 96 96 96 27 27 25 100 100 100 29 29 100 100 100 29 29 26 104 104 104 31 31 104 104 104 31 31 27 108 108
127. g F37 1 on the cassette table press the side guides firmly to the cassette sides Fig F 37 2 e Adjust the movement of the lever assembly stop to this position with the lever holders e Tighten the lever holder screws Check the adjustment and repeat if needed e Perform the same adjustment with the large cassette Figure F 37 Technical Manual Sophie Mammography X ray unit F 61 Chapter F ADJUSTMENT amp CALIBRATION ADJUSTING SENSORS amp SWITCHES Adjusting the cassette microswitches a Adjust the microswitches to connect 5 10 mm before lever assembly mechanical limit b Check that the lever assembly knob Fig F 37 4 hits only to the microswitch actuating lever Adjusting and checking the labeling head a Check that the sensing button Fig F 37 5 connects the microswitch at least in the middle of buttons movement Check that the button moves freely to the frame level b Ifthe labeling head has been removed from the table top cover check before fixing that the slide pieces are in position and in the same level c Fasten the labeling head tentatively to the top cover with fixing screws d Check that the labeling head moves without clearance and with as small friction as possible e Fasten the table top cover with the labeling head to the cassette shelf e Check the movement of labeling head e The centre of top cover may not bend upwards after installation of the labeling head e Check th
128. gnet points to the hall sensor on the LABELING PCB the LED D12 CRL on the SHELF CIRCUIT BOARD lights as well as right middle signal on the display b Ifthe LED D12 CRL does not light check if e The labeling head disk magnet moves too far from the hall sensor There is a loose connection between the LABELING PCB and SHELF COLLECTOR PCB COLLIMATOR a ELECTRICAL PROBLEMS Enter the service mode see see How to enter exit the service mode on page C 4 and select the internal signals mode 07 see Diagnostic display of internal signals on page C 10 If the signal on the display does not light when the magnet is at the limit sensor If the indicator LED s on the COLLIMATOR PCB does not light measure the operating voltages of the PCB 15 V 33 V If some of the collimator assembly display signal s does not light turn off the power and mea sure the resistances of following signal lines If needed measure the resistances of all Generator to Collimator cable wires FROM TO Generator to collimator cable Tube interface cable Connector Pin Connector Pin P1 1 CRL P1 A3 P1 2 FRL P1 C3 P1 3 MRL P1 C4 G 4 Sophie Mammography X ray unit Technical Manual Chapter G TROUBLESHOOTING amp FAULTFINDING MOTOR amp MOTION RELATED PROBLEMS If all signal lines are OK but the display signal s still does not light change the TUBE CPU 1 or COLLIMATOR PCB 2
129. hanism is at the sensor Check if the mechanism is working properly i e the motor is running and the sensor signal is not missing ER23 Labeling stepper motor time out The rotating labeling disk inside the cassette rear guide the labeling device doesn t pass its ref erence sensor or the sensor signal is missing The sensor is located under the rotating disk The signal reaching the TUBE CPU can be monitored in the service mode for easier faultfinding Check that the disk can rotate freely and that the sensor is not too far from the magnet Indicator on shelf PCB ER24 Bucky stepper motor time out The Bucky grid mechanism inside the Bucky assembly doesn t pass the reference optical slot sensor within a predetermined time Check that the Bucky cable connector is firmly inserted Check with another Bucky if the problem is in the unit or Bucky The sensor signal reaching the TUBE CPU can be monitored in the service mode for easier faultfinding Indicator on shelf PCB ER25 Magnification DC motor time out The MAG LOAD mechanism motor is not rotating or the rotation sensor signal is missing The motor and sensor are located at the rear of the tube head assembly There is no indicator LED for this signal but the signal can be monitored in the service mode for easier faultfinding Check that the sensor is not too far from the rotating magnet on the motor shaft ER26 X ray tube anode AC motor rotation problem The anode is not rotating or
130. hapter F ADJUSTMENT amp CALIBRATION KEYBOARD CONTROLLED in service mode 3 8 kV value fine adjustment E service mode CAUTION NOTE hold for 3 seconds CD Gai Gad The kV calibration is performed at the factory and these parameters are set to zero These parameters should be changed only when it is necessary to satisfy the local needs Use this feature with care Oe ael The kV value can be adjusted with two parameters offset and gain The offset parameter is used to shift kV values up or down The range is from 0 8 kV to 0 8 kV one step equals 0 2 kV The gain parameter is used to change the kV ramp steepness the 35 kV value remains unchanged while the 20 kV value will be shifted up by the parameter value selected The range is from 0 kV to 2 0 kV one step equals to 0 2 kV The kV value adjustment can be performed only in manual exposure mode In the service mode press the CTL key and then press and hold down the kV UP key for 3 seconds The kV display shows the message CAL the kV display shows the kV gain value and the mAs display shows the kV offset value Press the mAs UP key to change the kV offset value The value in the mAs display starts to flash Use the field light keys to change the value Press the kV UP key to change the kV gain value The value in the kV display starts to flash Use the field light keys to change the value Press the CTL key to exit and store the new parameter val
131. he cassette table Fig F 3 1 Enter the service mode see How to enter exit the service mode on page C 4 Select filter 1 25 kV small focal spot Take an exposure Check that the yellow area is straight and symmetrically according to Fig F 3 1 and 2 rectangle marked off in grey The side direction adjustment is performed by moving the collimator magnet holder Fig F 3 3 The front edge adjustment is performed by moving the stationary collimator primary front edge Fig F 3 4 Figure F 3 F 30 Sophie Mammography X ray unit Technical Manual Chapter F ADJUSTMENT amp CALIBRATION MECHANICAL ADJUSTMENTS Adjustment procedure using x ray film CAUTION Protect yourself from radiation when taking an exposure a Placea loaded large cassette on a cassette table Fig F 4 1 b Select 25 kV AEC small focal spot filter 1 take an exposure and develop the film film A C Measure the unexposed areas on both sides of the film The unexposed area must be between 0 mm 3 mm Fig F 4 2 4 E Figure F 4 d Check that the exposed area is straight on the film Adjust the collimator magnet holder when needed Fig F 3 3 and if that does not correct the situation turn the collimator assembly slightly Fig F 2 5 Technical Manual Sophie Mammography X ray unit F 31 Chapter F ADJUSTMENT amp CALIBRATION MECHANICAL ADJU
132. he light field away from the center of the field c Record these results d Divide these results and record the contrast ratio on the same sheet e Repeatthe above procedure for all other edges Rejection limits The maximum allowed misalignment of the edges of the visually defined light field with the respective edges of the x ray field is 4 mm The minimum contrast ratio of the edge of the light field is 4 3 9 Verifying electrical safety Protective earth Measure with an ohm meter from the mains plug ground terminal against any bare metal part in the unit the display must be under 0 2 ohms Spiral cables Check visually for wear out or extensive slack when unit is driven to its lowest position Rear cov ers of the column must be removed External cable conditions Check visually the remote control cable and the spiral cable to the exposure switch Technical Manual Sophie Mammography X ray unit E 11 Chapter E PREVENTIVE MAINTENANCE OTHER PREVENTIVE CHECKS E 12 Sophie Mammography X ray unit Technical Manual Chapter F ADJUSTMENT amp CALIBRATION 1 SPECIAL REGIONAL amp INITIAL SETUPS 1 1 Regional setups before using the unit The unit is tested and adjusted at the factory to comply with various regional safety require ments The software controlled parameters stored in internal non volatile memory should how ever be verified prior to normal operation since they could vary from r
133. he magnet is at the sensor or there are electrical problems COLLIMATOR on page G 4 F 48 Sophie Mammography X ray unit Technical Manual Chapter F ADJUSTMENT amp CALIBRATION ADJUSTING SENSORS amp SWITCHES 6 2 Compression mechanism limit sensors a Enter the service mode and select the display of internal signals mode 07 Fig F 23 1 b Drive the upper compression paddle mechanism with the field light keys Fig F 23 5 from top to bottom from limit sensor to limit sensor e Upper limit the upper compression paddle should stop and the right middle signal Fig F 23 2 on the display should light Paddle or any part of it may not hit to any other parts e Release highest limit drive the upper compression paddle to the release limit The right upper signal Fig F 23 3 should light and the paddle should tilt Lower limit place the Bucky grid to the lower paddle holders and drive the upper compression paddle to its lower limit The right lower signal Fig F 23 4 on the display should light Check that there is 1 2 mm space between the paddle and the Bucky C If f the compression mechanism display signal s does not light or there is a electrical problem Compression on page G 3 kg Compression limits 250997 Figure F 23 Technical Manual Sophie Mammography X ray unit F 49 Chapter F ADJUSTMENT amp CALIBRATION ADJUSTING SENSORS amp SWITCHES Mechanical adjustments
134. heck the rotation sensor and its connections and the spiral wire con nections going from the BASE PCB to the REAR COLLECTOR PCB ER46 No pulses from the LIFT motor rotation sensor or the motor is not rotating Check spiral cable condition and connections between the BASE PCB to the REAR COLLEC TOR PCB a Ifthe motor doesn t rotate please check for mechanical obstruction check motor condition and cables going to the BASE PCB check motor capacitors condition and connections b Ifthe motor rotates Check the rotation sensor wires from the motor to the REAR COLLECTOR PCB The motor rotation sensor could be faulty The signal can be monitored on the BASE PCB as well as in the service mode NOTE The motor contains a self resetting circuit breaker that operates if the motor becomes too hot Allow the motor to cool down before continuing the faultfinding ER47 Mains frequency out of range The unit is designed to operate on a mains frequency range of 47 to 63 Hz If the mains is OK but this error still occurs repeatedly please check the condition of the mains wire connections check or replace the SYNC PCB ER48 Failure in STEREOTACTIC stepper motor control circuitry or sensors There is no indication that the STEREOTACTIC mechanism stepper motor is rotating The motor rotation is always monitored for safety reasons Either the mechanism is obstructed or over loaded the motor is not getting proper power or there is a problem in the rotat
135. hip EPROM with a new one or replace the software chips in the unit to the most recent revision number If this doesn t help then replace the REAR CPU board ER74 ER75 ER76 ER77 REAR CPU program errors Replace the software in the unit both REAR CPU and TUBE CPU to the latest compatible revi sions If this doesn t help please contact your PLANMED dealer ER78 REAR CPU low frequency clock oscillator problem The 32768 Hz oscillator is not oscillating at all or is out of tolerance In this case also the time of day clock would not advance or run at wrong speed Replace the REAR CPU ER79 TUBE CPU stack overflow Please contact Planmed 4 9 ERRORS 80 87 CPU hardware related Many of these error relate to wrong information in the EEPROM memory inside the CPU chips on respective board Since the CPU chip is soldered directly to the board and is factory initialized it is not possible to replace only the chip on the field Please replace the whole board for repair at the PLANMED factory Please remember that the possibility for these errors is very low They are added to the error list just because of maximal system and patient safety ER80 REAR CPU parameter EEPROM memory failure The CPU chip on the REAR CPU board is faulty and cannot be programmed Replace the REAR CPU board ER81 TUBE CPU parameter EEPROM memory failure The CPU chip on the TUBE CPU board is faulty and cannot be programmed Replace the TUBE CPU b
136. hresholds at high speed and avoid to transport the unit on rough or uneven floors that could cause excessive vibra tions in the unit B 10 Sophie Mammography X ray unit Technical Manual Chapter B UNPACKING amp INSTALLATION MOBILE SOPHIE HANDLING amp TRANSPORTATION 6 MOBILE SOPHIE HANDLING amp TRANSPORTATION CAUTION NOTE Folding radiation shield Classic mobile 180397 Foot control The mobile version of the SOPHIE mammographic unit is intended to be easily transported However certain precautions must be followed to guarantee that no harm comes to the unit when turning the unit into and from the transport position Never transport the Sophie Mobile unit without first driving it to the transport position Never lift it from the C ARM or the HOOD When handling the unit lift the unit only from the metal base and or the transportation handle Make sure that there is enough space around the unit so that the C arm can freely rotate Use the red STOP buttons in case of an emergency C arm locking knob Unlock Locking lever Base front cover plate Locking lever 6 1 Preparing the mobile unit for use after transportation Lock the transportation wheels by pushing the locking levers down please see figure above Lift the folding top part of the radiation shield into position Plug the unit into a appropriate outlet and switch the unit on ASTOP message should appear o
137. ht CC proj Switch the unit off and remove the stationary column and telescopic column rear panels b Loosen the upper and lower locking nuts M17 by rotating them counterclockwise e If the adjustment is correct the gas spring tension should keep constant when rotating the tension adjuster about two turns counterclockwise Rotate it clockwise until the gas spring feels loose and leave it loose e n the case of a wrong adjustment the spring is pulling not pushing the gas spring would become loose when the tension adjuster is turned counterclockwise Leave it loose C Check and tighten the gas spring s lower pivot axle if it feels loose It could be loose if the spring was originally incorrectly adjusted d With the gas spring loose turn the tension adjuster counterclockwise as tight you can get using your fingers only Using a M17 wrench turn the tension adjuster counterclockwise one extra turn e Using the wrench tighten the upper and lower locking nuts by rotating them clockwise NOTE Rotational directions referred to are when looking at the mechanism from above Upper pivot axle The upper thread of the tension adjuster is left handed as the upper locking nut Upper pivot lug The tension adjuster must always be used to remove the tension before the gas spring is or can be removed Upper locking nut left hand thread Never extend the tension adjuster more than described otherwise it Tension adjuster
138. ial test run where it rotates down to find the position of the hall sensor and then back up to the normal CC position Wait until the movement stops c Adjust the upright position with the field light keys Placing a water scale on the cassette table makes the adjustment easier d Press the CTL key when ready Note that the C ARM now makes an additional movement to both sides approximately 15 degrees to finalize the calibration To exit without erasing the old calibrated value press either foot control CAUTION In this mode the C ARM is rotating by itself make sure there s enough space around the unit Use the STOP buttons for an emergency stop 3 4 Breast thickness measurement calibration service hold for modem Con gt O seconds Why and when to calibrate Perform this calibration whenever the REAR CPU is replaced with another one or if you have been servicing the compression mechanism or its sensors This calibration runs the mechanism from end to end checking simultaneously the distance between the end sensors The flexing of the compression paddle during the compression always causes a small error in the actual cm display This is however compensated for by the software 1 cm is automatically added to the cm display for every 10kg of compression force in MAG mode 2 cm is added for each 10kg of force Instruments and tools required None but remove all obstacles so that the compression paddle can move freely from en
139. ill appears repeatedly the battery is faulty or the electronics on the REAR CPU board is excessively loading the battery In this case replace the complete REAR CPU Technical Manual Sophie Mammography X ray unit D 17 Chapter D HELP AND ERROR MESSAGES DETAILED ERROR MESSAGE EXPLANATIONS ER86 Short main voltage abruption was detected This error can occur because a bad connection in the internal mains cabling of if the impedance of the incoming mains is too high if more than 134 and at extremely low mains voltage If the mains is OK there could be a problem with the detection circuitry ER87 Country code not set Before the unit can be operated and fulfils regional requirements the country code must be set please see Regional setups before using the unit on page F 1 for instructions This country code is normally cleared in new units at the PLANMED factory especially if the end customer is not known Spare REAR CPU s that contain this data are also cleared at the PLANMED factory to guarantee that this code is set initially by the service technician before operating the unit with patients ER88 Battery back up memory RAM contents not valid A parameter in the memory has a wrong value Check the parameters according to the tables given in paragraph Factory preset recalling settings for all parameters on page F 9 If appears more than once replace the REAR CPU board ER89 Wrong type of C arm rotation motor s
140. ilter and imaging mode adjust ments on page F 26 If it is judged that the problem is related to the tissue thickness tube potential or time the special adjustment software that runs in a PC laptop computer must be used see section Adjusting the thickness tube potential and time compensations on page F 24 NOTE The tissue thickness compensation is based on the compressed tissue thickness so it is necessary to apply compression when taking the test exposures All the test exposures should be done in normal mode i e not in service mode 4 3 Adjusting the thickness tube potential and time compensations These adjustments are available starting from software version REAR 4 10 and TUBE 2 10 To do these adjustments a PC computer is required on the site The PC serial port COM1 or COM2 the file option menu can be used to change the port is connected to the Sophie connec tor using a cable order code 7827752 and a special connection box order code 10000140 The MAMMOTOOL version 1 0 software order code 10000139 must be installed on the PC First set the service mode parameter 11 to value 5 This enables the communication between Sophie and PC Next start the MAMMOTOOL software on the PC NOTE Starting from Sophie software version REAR 4 41 and TUBE 2 41 you can define whether the adjustments are used only or the large focus only for the small focus or both see sec tion 79 Mode of Mammotool parameters usage on p
141. imator adjustment Oo O gQ o e Place a loaded small cassette on a cassette table Fig F 10 1 Select 25 kV AEC spot collimator small focal spot take an exposure and develop the film Check that the exposed area corresponds to the area in Fig F 10 Loosen the spot collimator assembly screws and perform the side direction adjustment Fig F 10 2 The back front adjustment is performed by moving the COLLIMATOR PCB Fig F 10 3 or the collimator assembly Fig F 10 4 After adjustment make sure that the collimator worm screw nut does not hit the collimator lower frame or stick to the beginning of the worm screw If needed adjust the collimator limit sensors see Collimator mechanism limit sensors on page F 44 Cassette 80 85 mm 80 85 mm Figure F 10 Technical Manual Sophie Mammography X ray unit F 37 Chapter F ADJUSTMENT amp CALIBRATION MECHANICAL ADJUSTMENTS X ray beam adjustment large focal spot a Place a loaded small cassette on a cassette table Fig F 4 1 b Select 25 kV AEC large focal spot filter 1 take an exposure and develop the film film A o 1 iJ g 5 A lt Figure F 11 c Measure the unexposed areas on both sides of the film The unexposed area must be between 0 mm 3 mm Fig F 4 2 Adjust the area by lifting and lowering the collimator magnet holder Fig F 12 1 adjcollframe eps
142. in P3 3 MDL P1 C 22 P3 8 MVL P1 A22 3 2 Stepper motors Compression a ELECTRICAL PROBLEMS Enter the service mode see How to enter exit the service mode on page C 4 and select the internal signals mode 07 see Diagnostic display of internal signals on page C 10 If the signal on the display does not light when the magnet is at the limit sensor e Check if the indicator LED related to the sensor on the FRONT COLLECTOR PCB has lit 07 07 k kg 3 EE ES MN z P 2 o pr P2 z 9 E P3 o o 07 Figure G 2 e Measure the operating voltages of the PCB 15 V 33 V If the LEDs on the FRONT COLLECTOR PCB has lit but the display signals do not light the fail ure is between the FRONT COLLECTOR PCB and the REAR COLLECTOR PCB or in them Technical Manual Sophie Mammography X ray unit G 3 Chapter G TROUBLESHOOTING amp FAULTFINDING MOTOR amp MOTION RELATED PROBLEMS Turn off the power and measure the resistances of wires given in table below If the wires are OK but the signals on the display do not light change the REAR CPU FROM TO Front Collector PCB Rear Collector PCB Connector Pin Connector Pin P1 1 GND P10 A 26 P1 2 PRL P10 C5 P1 3 P10 P2 1 GND P10 A26 P2 2 PUL P10 C4 P2 3 P10 P3 1 GND P10 A26 P3 2 PLL P10 A5 P3 3 P10 LABELING a When the labeling head disk ma
143. in an undefined position Fully push or pull the labeling head to either end HE 7 A large cassette with a small lower paddle is not Either change to a small cassette or a large lower allowed because the lower compression paddle compression paddle would collide with the cassette HE 8 A small cassette with a large lower paddle is not Either change to a large cassette or a small lower allowed because the film labeling head would collide compression paddle with the compression paddle HE 9 No projection angle is selected Use the LM MLO or CC key for projection selection HE10 The lower compression paddle has risen too far Remove any obstructing objects and check that the upwards cassette and lower paddle are firmly inserted HE11 The Up Down movement of the unit is not allowed Release the paddle before driving the unit or turn off during the compression of the breast this safety feature in the service mode HE13 The Aluminum filter filter no 2 is not allowed with Increase the kV setting if you wish to use the Alumi kV settings lower than 30 kV num filter HE14 The kV setting cannot be changed before you either Reduce the mAs setting first reduce the mAs setting HE18 A higher mAs value is not allowed with the current Decrease the kV setting first kV setting HE20 This key functions only during AEC mode Select the AEC mode first with the AEC key HE21 This key functions only in the manual exposure mode Select manual mode first with the
144. ina 22 n kg n 1 HE37 enabled dui d a nz0 HE37 The bucky grid is not connected is disabled The factory default is 0 b nz1 HE37 is enabled Technical Manual Sophie Mammography X ray unit F 19 Chapter F ADJUSTMENT amp CALIBRATION KEYBOARD CONTROLLED in service mode 26 Speed of the LOAD movement n speed of LOAD movement tting i 26 n kg speed range from 1 slowest to 15 fastest um UE factory preset is 15 This feature controls the speed of the cassette table when driving it to the loading position Note that the C arm is driven to the magnification position always with the maximum 15 speed 27 Minimum kV value in AAEC mode n minimum kV value tting i 27 n kg The range is from 20 to 27 kV eee Factory preset is 20 kV z 28 Mode of spot collimator small focus operation n 0 The small focus is not selected ina 28 n kg automatically when the spot collimator is Seungn this unit chosen factory preset n 1 The small focus is automatically selected when the spot collimator is chosen Note that the small focus is always chosen when the magnification mode is selected regardless of this parameter value 29 Mode of magnification spot collimator operation n 0 The spot collimator is not selected tting i 29 n kg automatically when the magnification mode is See selected factory preset n 1 The spot collimator is
145. inated by the REAR CPU The exposure is normally always timed and terminated by the TUBE CPU or whenever the user releases the exposure switch If however the TUBE CPU would fail and continue the exposure more than 10 seconds then the REAR CPU would terminate the exposure This is a safety pro cedure that guarantees that the exposure is terminated under all conditions Replace the TUBE CPU if this error occurs repeatedly ER37 kV feedback signal open circuit There is an open circuit in the kV feedback signal from the TUBE HEAD to the TUBE CPU When the feedback signal is open circuited the TUBE CPU prevents all exposures normal and service mode to ensure TUBEHEAD safety Check the condition of the 32 way TUBEHEAD connector and the mating one in the POWER SUPPLY Remove the POWER SUPPLY and mea sure the kV feedback resistance at the 32 way tubehead connector please refer to the schemat ics Replace the TUBE CPU POWER SUPPLY or TUBE HEAD in this order if you cannot find the problem ER38 mA feedback open circuit There is an open circuit in the mA feedback signal from the TUBE HEAD to the TUBE CPU When the feedback signal is open circuited the TUBE CPU prevents all exposures normal and service mode to ensure TUBEHEAD safety Check the condition of the 32 way TUBEHEAD connector and the mating one in the POWER SUPPLY Remove the POWER SUPPLY and mea sure the mA feedback resistance at the 32 way tubehead connector please refer
146. ing and adjustment a Ifthe right lower signal does not light when the paddle is tilted 6 12 mm adjust the place of paddle holders microswitches Fig F 42 4 b Remove the C arm covers see instructions in chapter H section 1 4 c Ifthe paddle is not straight adjust the height of the holders Fig F 42 5 d Ifthe prongs stick into the lower paddle holders remove the holders from the C arm center frame and check Fig F 42 e Do the parts 1 have vaseline e Are the parts 1 clean of burrs e Is the spring 2 whole and straight e Adjust the screw 3 09 i Holders 290997 Figure F 42 If the signal s on the display does not light or there is a mechanical problem see Paddle holder related on page G 6 Technical Manual Sophie Mammography X ray unit F 65 Chapter F ADJUSTMENT amp CALIBRATION ADJUSTING SENSORS amp SWITCHES F 66 Sophie Mammography X ray unit Technical Manual Chapter G TROUBLESHOOTING amp FAULTFINDING 1 DISPLAYING INTERNAL SENSOR SIGNALS Please refer to Diagnostic display of internal signals on page C 10 for details This mode pro vides helpful information when tracing sensor and switch signals since all signals can be viewed here 2 ELECTRICAL PROBLEMS 2 1 Unit completely dead Checking fuses and mains voltage Mains fuses 2x15ATor 1x15AT a Unplug the unit from the outlet and test with
147. ing the anode voltage kV There are two different measurement procedures that can be used Measurement with Mammo graphic kVp meter and Invasive measurement with Digital multimeter Applicable measurement instruments and tools e Victoreen Model 4000M Mammographic kVp meter FLUKE Model 8060A Digital multimeter Feedback measuring cable Order No 7827773 Measurement procedure using Mammographic kVp meter a Select Mo Mo using the filter wheel accessible from the rear panel of Victoreen Select High Sensitivity Mo Mo anode filter and Radio Mode from the front panel of Victoreen Place the kVp meter on the image receptor support so that the chamber is in the center of the front edge b Select 27 kV 50 mAs filter 1 30 um Mo large focus from the SOPHIE panel Make sure that the Automatic kV selection and the AEC modes are not selected c Take an exposure and read the kVp average value from the display of the Victoreen d Use the calibration curves to determine the actual kVp and record it e Repeatthe procedure using 31 kV and 35 kV f Select 35 kV 14 mAs filter 1 30 um Mo small focus from the SOPHIE panel g Take an exposure and read the kVp average value from the display of Victoreen h Use the calibration curves to determine the actual kVp and record it Measurement procedure using Digital multimeter a Turn off the power from SOPHIE b Remove the following C arm covers top cover lower cover and vertica
148. ion sensors or in the electronics Check the distance from the infrared reflecting sensors to the rotating reflector disc If this error occurs close to the mid position when moving from side to side it could be an indication that the sensors are too far from the reflector disc At the stereotactics center position the disk is at maxi mum distance from the sensors Carefully bend the sensors closer to the disc ensuring that the sensors does not touch the reflecting disc when it is at is closest position D 14 Sophie Mammography X ray unit Technical Manual Chapter D HELP AND ERROR MESSAGES DETAILED ERROR MESSAGE EXPLANATIONS ER49 The STEREOTACTIC shelf is not at the end position The end positions left right are monitored by sensors for safety and precision This error is dis played if the mechanism doesn t reach the sensor after a certain number of stepping pulses to the motor The sensor could be faulty or not adjusted properly or there could be a break in the sensor signal wires 4 6 ERRORS 50 59 temperature amp special sensor related ER50 Tube head temperature sensor open circuit See ERB51 If the problem doesn t disappear by disconnecting the sensor wire from the MAG PCB check the cables or change the TUBE CPU PCB ER51 Tube head temperature sensor short circuit All exposured are inhibited by the TUBE CPU during this condition The tube head temperature is measured by the TUBE CPU using a sensor a
149. ionary column covers Stationary column rear panel Fig H 4 4 a Remove the cover screws 6 pcs b Cover can now be removed from the stationary column rear cover Stationary column rear cover Fig H 4 5 a The stationary column rear panel must be removed b Remove the screws 6 pcs that hold the column cover to the column and base and lift the cover off 2 D 9 s 5 d i Qu f 3 Qo Qo wg Be 4 3 Figure H 4 Technical Manual Sophie Mammography X ray unit H 3 Chapter H PARTS REPLACEMENT amp REPAIR REMOVING amp REPLACING COVERS 1 4 C arm covers Figure H 5 Drive the C arm to upright position Drive the cassette table to MAG 1 8 position and the com pression paddle to the release highest position Turn off the power and unplug the unit Wait for 2 minutes before proceeding NOTE The C arm covers must be removed in the following order C ARM top cover Fig H 5 1 a Remove the beam window Fig H 5 2 from the underside of the tubehead assembly by unscrewing its three screws The screws secure also the top cover and side panels in position b Loosen the top cover screws Fig H 5 3 and lift the top cover off H 4 Sophie Mammography X ray unit Technical Manual Chapter H PARTS REPLACEMENT amp REPAIR REMOVING amp REPLACING COVERS C arm lower cover Fig H 5 4 a Remove the
150. ions of the five three fastening screw holes to the floor Drill the holes 12mm in diameter and 60mm deep and insert the 12x60 expansion anchors into the holes f Fasten the unit to its place with three 8x70 DIN 571 screws Replace the removed covers g Remove the C arm locking knob and attach the cover strip to its position B Sophie Mammography X ray unit Technical Manual Chapter B UNPACKING amp INSTALLATION UNPACKING THE UNIT h Check the attachment of the unit The unit must stay in its position when it is pulled forward as described below Drive the C arm to the uppermost and upright position Pull the unit forward at the side handles with a force of at least 220 N 22 kg 50 Ibf 220N 50Ibf 160 mm Sst98 EPS EN F9 r3 AN 4 est98 2 5 Unpacking the accessories The following minimum set of accessories should be found inside the crate in every shipped unit Upper compression paddles 4 pcs TWINCOMP Normal Spot Biopsy Lower compression paddle 18x24cm Remote control box and 10m cable delivered but optional for the mobile unit Transportation handle Chin guard Radiation shield only with the mobile unit model Rear control panel only with the mobile unit model Unpack carefully the accessories from the boxes found inside the crate Note that the unit is nor mally delivered without cassettes NOTE The s
151. is is needed when the AEC is fine tuned by using the MAMMOTOOL software refer to section FINE TUNING SOPHIE AEC FOR NONSTANDARD FILM SCREEN COMBINATIONS on page F 24 g With selection code 6 the Kodak Film Printer can be used NOTE Please note that only one of the above mentioned systems can be simultaneously used A serial printer cannot be used without a special Sophie compatible adapter 12 Setting type of remote control box n 1 Traditional remote with 1 indicator Setting in 12 n kg n 2 Advanced remote with 2 indicators this unit The factory default is n 2 Advanced remote control If you use the old box and have the unit set for the new one then the EXP led would be on all the time in the remote box If you use the new control box and the unit is set for the old one then the remote box READY led would not function EXP works as before 13 Density fine adjustment sensor 1 n density fine adjustment value Setting in 13 n kg range from 5 lighter film to 5 darker film this unit one step equals 2 6 of OD A 1 5 of the coarse density control setting The factory default is n 0 no adjustment Use this fine adjustment to fine tune the film density for sensor number 1 if one normal density step is too coarse 14 Mode of LAT key operation n 0 LM view is selected when Setting in 14 n kg the LAT key is pressed this p n 1 ML view is selected when the LAT key is pres
152. is rotating at wrong speed or a problem in the rotation sensing sys tem The TUBE CPU is monitoring the voltage waveforms at the motor windings just before the exposure starts If an abnormal condition is detected the exposure is inhibited to protect the tube anode from possible damage due to local overheating If this error occurs only occasionally it is recommended to perform the tube filament definition procedure see paragraph X ray tube filament preheating voltage calibration on page F 14 how to do this This procedure corrects also for small tolerance changes in the anode motor control circuitry by storing new reference values in TUBE CPU memory A faulty or disconnected anode motor capacitor the 2 capacitors located on the rear side of the tube head also can cause this error Check the capacitor cables and connectors for good con tact A fault in the tube head internal stator winding or its wiring could also be the case Check the winding resistances through the 32 way connector after you have removed the power supply Technical Manual Sophie Mammography X ray unit D 11 Chapter D HELP AND ERROR MESSAGES DETAILED ERROR MESSAGE EXPLANATIONS Check also the condition of the tubehead connector and its mating connector in the power sup ply If the anode motor is not rotating at all no hissing sound can be heard from inside the tubehead it is possible that the anode stator protection FUSE is blown inside the POWER SUP
153. isplay Sensor indicator lights Exposure ready amp C Breast thickness display Ce frs Field light keys kg 5s ome Om OH Oac Automatic manual L Z PRET Mo MAN exposure indicator lights indicator lights 983 L Automatic manual exposure key CAUTION ATTENTION RAYONSX J Focal spot indicator lights Filtration spot key and indicator lights Technical Manual Sophie Mammography X ray unit C 1 Chapter C KEYBOARD FUNCTIONS amp MODES 2 USER MODE FUNCTIONS SHORT FORM 2 1 Normal user functions The keyboards are always in the normal operating mode when the unit is turned on Please refer to the SOPHIE USER S MANUAL for descriptions for the normal keyboard operation and instruc tions for normal everyday use of the unit 2 2 Special user settings There are some adjustments that the user operator can perform to set the unit to fulfil individual needs The following table is a short form of these functions Please refer to the User Manual for more detailed descriptions How to access these special user settings Press the CTL key its LED turns on and then press the corresponding button Some of the set tings especially infrequently used ones require that the corresponding button is held down for three 3 seconds preventing inadvertent entry into these modes Exit from these special user
154. istance Maximum continuous heat dissipation BUCKY GRID SPECIFICATION Grid manufacturer Grid type Grid movement Grid ratio Grid lines per cm Focusing distance Application limits Material of absorbing strips Contrast improvement ratio Selectivity Grid exposure factor Toshiba E7272 rotating anode 3000 rpm at 50 Hz Automatic electrical 300 000 HU Molybdenum 16 degrees Beryllium 0 3mm 0 1 x 0 07 mm 30um Mo and 0 5mm Al or 30um Mo and 25um Rh GENERATOR ASSEMBLY for both tube types if not otherwise specified constant potential high frequency 20 35kV x 2kV virtually DC 70 110mA 70 120 mA 60Hz 5mA 10 22mA 12 22 mA 60Hz 1mA 10 500mAs optional 600mAs in GB x 4mAs or 10 whichever is larger 10 200 mAs 0 1 5 seconds optional 6 seconds 5 0 1 9 9 seconds 5 automatically controlled internal fan 208 240V 50 or 60Hz single phase automatic 10 10 absolute minimum maximum 187V 265V 2 x 15AT 250V max 100VA idle 4000VA max for 5 seconds gt 0 95 intermittent Q1 lt 250W Gilardoni GRIDGIL HT Fiber interspaced vertical Variable amplitude oscillation r5 N36 f965 18x24 f 50 f591 24x30 153 f582 Pb K1 47 26 04 B1 69 Transmission of primary radiation Tp 0 75 Max deviation between the central line indication and the true central line A2 Technical Manual Sophie Mammography X ray unit A 5 Chapter A
155. kg maximum compression force this unit below which the up down movement can be run 05 AUTO LOAD on off n 0 load movement always manual only Setting in 05 n kg n 1 load movement is also automatic if this UE user selects AUTO release 06 Maximum regional mAs limit n 1 500mAs 50Hz 550mAs 60Hz FIN Setting in 06 n kg n 2 600mAs 50Hz 600mAs 60Hz ENG this unit n 3 300mAs 50Hz 300mAs 60Hz NY 07 Mode of FOOT CONTROL operation n 0 outer edge releases inner compresses Setting in 07 n kg n 1 inner edge releases outer compresses this unit 08 Type of BUCKY grid n 1 Smith roentgen bucky Setting in 08 n kg 2 Gilardoni bucky factory default this unit 09 Film screen combination 0 zero gain n film screen combination O gain value Setting in 09 n kg range from 2 darkest to 99 lightest this unit factory default is 10 Technical Manual Sophie Mammography X ray unit F 17 Chapter F ADJUSTMENT amp CALIBRATION KEYBOARD CONTROLLED in service mode 10 Film screen combination 0 zero steepness n film screen combination 0 steepness value in 10 n _kg range O low contrast to 20 high contrast senno in factory default is 10 this unit 11 Setting type of printer and or height of labels used n 0 no marking system ine n 1 STAR thermal label printer veda 11 n n 2 standard seria
156. l cover refer to section C arm covers on page H 4 Remove the power supply cover refer to section Replacing the Tube CPU software on page H 9 C Connect the Feedback measuring kV cable to the connector P3 on the 109 10 15 PCB The board is located in the rear end of the Power supply see Fig E 1 E Sophie Mammography X ray unit Technical Manual Chapter E PREVENTIVE MAINTENANCE OTHER PREVENTIVE CHECKS d CAUTION f Connect the cable to the multimeter first red to VQ and black to COM and after that connect the black connector to kV connector Figure E 1 Switch the multimeter to the voltage range Turn the SOPHIE on The X ray unit may be damaged if the power is turned on when the multimeter is on the resistance range E7272 tube Select 20kV 50mAs and small focus from the control panel of SOPHIE E7290 tube Select 20kV 100mAs and small focus from the control panel of SOPHIE Make sure that the Automatic kV selection and the AEC modes are not selected Take an exposure and record the multimeter value during exposure The right kV value is calculated from the measured voltage value by multiplying it by 8950 e g e 2 289V x 8950 20 5kV Perform exposures with the following values e 20kV 50mAs small focus 28kV 50mAs small focus 35kV 50mAs small focus 20kV 140mAs large focus 28kV 140mAs large focus 35kV 140mAs large focus
157. l label printer E n 3 Livingston film ID system n 4 Agfa film printer n 5 enable communication between Sophie and PC n 6 Kodak film printer a With selection code 0 the PLANMECA ADMARK darkroom film marking system can be used that prints all office patient and technic setting information directly onto an unprocessed film in the darkroom The patient and office information is entered by the keyboard provided b With selection code 1 the COSTAR ASCII Label Writer II label printer can be used that prints all technic setting information on a thermal label The patient and office information is manually written to the label before exposing the information on the label to the film c With selection code 2 a standard RS 232 serial printer can be used that prints all technic setting information on form feed labels The printer should be set to 9600 baud The number of spacing rows between the labels is determined with parameter 19 The patient and office information is manually written to the label before exposing the information onto the film d With selection code 3 the LIVINGSTON Film ID System can be used that exposes all office patient and technic setting information directly onto a film after an exposure The patient information and the date is entered by the system s keyboard e With selection code 4 the Agfa Film Printer can be used f With selection code 5 the communication between the Sophie and PC is enabled Th
158. lf collector PCB AEC sensor PCB 10 Labeling PCB 11 Force sensor PCB 12 Front collector PCB 13 Tube processor PCB 14 Mag control PCB 15 Collimator PCB 16 Bucky grid reference PCB 17 Stereotactic control PCB 18 Lift reference PCB O ONO OI Pe CON Figure H 21 Technical Manual Sophie Mammography X ray unit H 19 Chapter H PARTS REPLACEMENT amp REPAIR REPLACING CIRCUIT BOARDS 7 2 Boards in the base amp column Base PCB a Remove the Base rear cover see section Base covers on page H 2 b Disconnect all the connectors from Base PCB c Detach the PCB from its holders see Fig H 22 Figure H 22 d Insert the new PCB Connect the wires e Replace the Base rear cover Sync PCB Rear collector PCB Rear processor PCB CAUTION Drive the C arm to straight upright CC position and turn off the power Remove the Stationary column rear cover Telescopic column rear cover and Stationary column rear cover see sections Telescopic column covers on page H 2 and Stationary column covers on page H 3 Remove the Gas spring see section GAS SPRING REPLACEMENT on page H 38 Disconnect all connectors from the Sync PCB Detach the PCB from its holders see instructions given in section REPLACING CIRCUIT BOARDS on page H 19 Insert the new PCB Connect all wires to the PCB Replace all the covers When replacing the Rear collector PCB make sure that the connectors of the limi
159. ll make images darker and a negative will make images lighter F 26 Sophie Mammography X ray unit Technical Manual Chapter F ADJUSTMENT amp CALIBRATION FINE TUNING SOPHIE AEC FOR NONSTANDARD Test Exposure protocol AEC AAEC cm kV mAs sec OD cm kV mAs sec OD 1 20 1 2 22 2 3 24 3 4 26 4 5 27 5 6 29 6 7 31 7 8 33 8 AEC AAEC cm kV mAs sec OD cm kV mAs sec OD 1 20 1 2 22 2 3 24 3 4 26 4 5 27 5 6 29 6 7 31 7 8 33 8 Technical Manual Sophie Mammography X ray unit F 27 Chapter F ADJUSTMENT amp CALIBRATION MECHANICAL ADJUSTMENTS 5 MECHANICAL ADJUSTMENTS 5 1 MAG LOAD mechanism positional calibration There is no actual need to calibrate this parameter Driving the mechanism once from side to side from limit sensor to limit sensor would restore the positional information if it was wrong Please perform this movement if you have replaced the TUBE CPU board with or without the POWER SUPPLY 5 2 UP DOWN mechanism positional calibration There is no actual need to calibrate this parameter Driving the mechanism once from the lowest position to the upmost position from limit sensor to limit sensor C arm in upright position would restore the positional information if it was wrong Please perform this movement if you have replaced the REAR CPU board with or without the POWER SUPPLY
160. mall accessories bag is located under the right cover strip of the unit base Technical Manual Sophie Mammography X ray unit B 7 Chapter B UNPACKING amp INSTALLATION ATTACHMENT OF ACCESSORIES 3 ATTACHMENT OF ACCESSORIES 3 1 Compression paddles Please refer to the User s manual for instructions how to insert the upper compression paddle the lower compression paddle or the Bucky device 3 2 Remote control attachment optional for the mobile unit NOTE There are two types of the remote control box the traditional and the extended that has an additional READY light They unit must be programmed accordingly depending of which box is in use See paragraph 12 Setting type of remote control box on page F 18 for details Attach the remote control box to the rear of the radiation shield to be used or to any other conve nient location that is shielded from radiation According to local radiation safety regulations there must often be a visual contact between the patient and the operator Please take this into account when finding a proper location for the remote box Connect the remote box to the unit with the supplied cable It s NOT recommended to cut the excess length The cable should be attached to the walls or put in a cable viaduct never let the cable lye on the floor where it can be damaged Please notice that the remote cable has one male an one female connector The male connector is the one that is co
161. me errors these would be then ignored The factory default is ON F 6 Sophie Mammography X ray unit Technical Manual Chapter F ADJUSTMENT amp CALIBRATION KEYBOARD CONTROLLED in normal mode 2 14 Disabling bucky grid movement gt gt EM spe m ome 3 seconds Press the CTL key and then press and hold the right FIELD LIGHT key for 3 seconds Use the field light keys to change the setting The time force display the current setting ON 9 Grid moves OFF 9 Grid doesn t move Press the CTL key to exit This key sequence sets turns the BUCKY grid movement either on or off This feature is normally only used for diagnostic purposes The factory default is ON NOTE Note that the grid movement is always forced ON every time the unit is turned on 2 15 Alarm sound frequency loudness Con CD fiio Ce gt Con Seting n hold for 3 seconds Press the CTL key and then press and hold the left field light key for 3 seconds Use the field light keys to change the frequency Press the CTL key to exit This key sequence sets the alarm sound frequency This frequency is sounded shortly when a key is pressed and also during the exposures By changing the frequency the loudness can also be somewhat affected 2 16 Dimming the displays ee hold for 3 seconds Press the CTL key and the DEX key to toggle the display dimming feature on or off 2 17 mA limit on off Setting in
162. metimes especially with film screen combinations that are nonstandard for Sophie it is nec essary to do some additional adjustments to get the AEC system track properly The density cor rection parameters correction curves for voltages kV parameters 48 63 breast thickness parameters numbers 64 72 and exposure time parameters numbers 73 77 are separately adjusted by several adjustable parameters per curve voltages with 15 breast thickness with 9 and exposure time curve with 5 The adjustment is done according to the test images with a computer program MammoTool and transformed into the Sophie s memory These transformed parameters can be seen in the service mode parameters 48 77 where they have values between 1 99 value 43 corresponds to the 0 adjustment level which is also the factory default for each parameter In order to establish the connection between Sophie and computer the value 5 must be set in the service mode parameter 11 Please refer to section FINE TUNING SOPHIE AEC FOR NONSTANDARD FILM SCREEN COMBINATIONS on page F 24 for detailed instructions on how to fine tune AEC The factory default is n 43 for all the parameters KEYBOARD CONTROLLED in service mode Parameter number Setting in this unit Parameter number Setting in this unit 48 voltage 49 voltage 50 voltage 51 voltage 52 voltage 53 voltage 54 voltage 55 voltage 56 voltage 57 voltage 58 voltage
163. n Mag down and check that the right lower signal Fig F 26 4 on the display lights 2 04 S i i 3 3 04 o a La mi 5 2 3mm Figure F 26 Mechanical checking and adjustment a Mag up normal mode position s limit sensor Place the lower paddle to the lower paddle holders Drive the cassette table to Mag up position the space between frame side and table guide should be 2 3 mm Fig F 26 5 e Adjust the magnet holder until the space is correct F 52 Sophie Mammography X ray unit Technical Manual Chapter F ADJUSTMENT amp CALIBRATION ADJUSTING SENSORS amp SWITCHES c Mag down magnification mode position s limit sensor Check that the mechanical limit is correctly positioned Make sure that the compression mechanism limit sensors have been adjusted chapter F section 5 2 The adjustment is performed with right C arm side panel fastened to make sure that the upper compression paddle assembly does not hit the side panel at the lower limit this is pos sible failure when the C arm is in MAG position compression paddle non tilted and in its highest position tilt release position Fig F 27 If needed adjust the magnet holder so that the conditions above are fulfilled Make sure that the hall sensor hits the magnet holder accurately Check that the space between the mechanical limit and the tubehead is at least 2 mm when the cassette table i
164. n the time cm displays Turn the C arm locking knob located underneath the C arm clockwise as far as it goes until it stops rotating The STOP message on the display will disappear Lift the foot controls down on the floor and drive the unit out of the transport position by pressing the CTL key and then holding the CC key for 3 seconds The unit is now ready for use Cm gt Ce hold for 3 seconds Technical Manual Sophie Mammography X ray unit B 11 Chapter B UNPACKING amp INSTALLATION MOBILE SOPHIE HANDLING amp TRANSPORTATION 6 2 Preparing the mobile unit for transportation a b Make sure that the C arm locking knob is in its lowest position Also make sure that the foot controls are on the floor and not on the base front cover plate Drive the unit into the transport position by pressing the CTL key and then holding the CC key for 3 seconds Wait until the C arm movement has stopped and drive the C arm to its lowest position by pressing and holding the DOWN switch Turn the C arm locking knob counterclockwise until it just touches the locking stud Do not over tighten the knob since it could bend the C arm The STOP message will now appear on the displays Turn off the power and disconnect the unit from the mains outlet Place the mains cable on top of the base so that it cannot fall on the floor during transportation Fold down the top part of the radiation shield Place the foot controls on
165. ng to instruc tions described in chapter F section 4 3 Figure F 21 Technical Manual Sophie Mammography X ray unit F 47 Chapter F ADJUSTMENT amp CALIBRATION ADJUSTING SENSORS amp SWITCHES COLLIMATOR MECHANISM MECHANICAL AND VISUAL CHECKING a Check that all the worm screws rotate easily Fig F 22 1 If there is stiffness try to reduce it with following procedure Loosen the fixing screws arrows of the stepper motor e Drive the worm screw nut from side to side and leave it to the position nearest the stepper motor Fasten the stepper motor screws e Check the rotation of the worm screw Repeat the adjustment if needed b Checkthat the worm screws has a thin layer of vaseline The vaseline may not contain silicon and it must be heat proof and colorless Factory recommendation KLUBER paralia GA 351 c Check that the filter ladder outer edges have a thin layer of vaseline Fig F 22 2 d Check that the mirror moves easily and that it is clean e Checkand fasten if necessary all the screws and nuts f If the collimator assembly has been removed from or sifted in the tubehead the adjustment according to chapter F sections 4 3 and 4 4 is required g Ifthe places of magnet holders or COLLIMATOR PCB have been changed the adjustment according to chapter F sections 4 3 and 4 4 is recommended Adjcol98 eps Figure F 22 h Ifthe signal s on the display does not light when t
166. nnected to the unit 3 3 Mobile Sophie special accessories attachment The rear control panel and the folding radiation shield must be attached to the unit Connect the rear control panel cable to the free connector coming out through the hood and push the excess of the cable and the connectors through the hole 3 4 Exposure warning light option An optional exposure warning light can be connected to the remote box The light must be pow ered from an external power source since the box contains only a circuit breaker relay See the schematics for details 3 5 Printer option To be able to attach a label printer to the unit you need an PLANMED manufactured adapter please refer to the Spare Parts Manual to connect to the remote control cable This adapter is then connected to the printer with a straight 25 pin RS 232 cable 3 6 ADMARK darkroom film marking system Please refer to the ADMARK manual how to install and use it with the SOPHIE mammographic unit B 8 Sophie Mammography X ray unit Technical Manual Chapter B UNPACKING amp INSTALLATION SETUPS AND CHECKS PRIOR TO USE 4 SETUPS AND CHECKS PRIOR TO USE Before using the unit for patient work some initial setups and checks must be performed Con tinue with the setups described in SPECIAL REGIONAL amp INITIAL SETUPS on page F 1 Technical Manual Sophie Mammography X ray unit B 9 Chapter B UNPACKING amp INSTALLATION RE PACKING
167. none page F 18 12 Type of remote control box 2 advanced page F 18 13 Density fine adjustment sensor 1 0 no adjustment page F 18 14 Mode of LAT key operation 0 LM selected first page F 18 15 Auto kV offset 0 no offset page F 19 16 cm display offset adjustment 0 mm no offset page F 19 17 Height of spot paddle 40 mm normal page F 19 18 Duration of the filter selection time out 5 seconds page F 19 19 Number of spacing rows in the serial printer 2 page F 19 20 Mode of MAG LOAD and release operations 0 page F 19 21 Speed of the rotation motor 4 page F 19 22 HE37 disabled enabled 1 page F 19 26 Speed of LOAD movement 15 page F 20 27 Minimum kV value in AAEC mode 20 kV page F 20 28 Mode of spot collimator small focus operation 1 page F 20 29 Mode of magnification spot collimator operation O page F 20 30 AEC optical density selection 0 1 2 page F 20 31 Sophie Sophie CLASSIC selection 0 Sophie page F 20 32 Filter selection in the spot mode 0 spot collimator page F 20 33 Intermediate compression stopping force offset 0 page F 20 with the twincomp compression F 10 Sophie Mammography X ray unit Technical Manual Chapter F ADJUSTMENT amp CALIBRATION KEYBOARD CONTROLLED in service mode Table 5 Service mode parameters affected by the factory default Special system parameters factory default for details setting in this unit 34 42 Exposure mode and filter
168. nsor s are not calibrated Er 15 Failure in the currently selected AEC sensor occurs mainly during calibration of the AEC sensor Er 16 AEC sensor feedback signal open circuit failure Er17 Bias values for normal and small focus are not selected Er18 kV fine adjustment parameter values in TUBE CPU differ from the values in REAR CPU Er20 Mirror motor time out The mirror mechanism doesn t reach the limit sensor within a specified time Er21 Filter motor time out The filter mechanism doesn t reach the limit sensor within a specified time Er22 Collimator motor time out The collimator mechanism doesn t reach the limit sensor within a specified time ae motor time out The cutter mechanism doesn t reach the sensor within a specified time Er23 Labeling motor time out Labeling disc magnet does not pass the reference sensor within specified time Er24 Bucky grid motor time out The grid does not move or there is no signal from sensor within a specified time Er25 MAG LOAD motor error No pulses from motor even if the motor is driven Er26 X ray tube anode doesn t rotate properly or a problem in the anode motor rotation sensing D 4 Sophie Mammography X ray unit Technical Manual ERROR MESSAGES SHORTFORM TABLE Chapter D HELP AND ERROR MESSAGES ERROR MESSAGES SHORTFORM TABLE Table 14 Error Codes Short Form Table Continued Er ERR
169. nt 0 0 cette eee E 4 2 6 Image quality evaluation selle III E 5 2 7 Verifying AEC system control limits lille E 5 3 OTHER PREVENTIVE CHECKS esses E 6 3 1 Verifying compression force measurement 0000 00 eee eee elles E 6 3 2 Verifying filament pre heating voltages llle E 6 3 3 Verifying the anode voltage KV 2 0 cece teens E 6 3 4 Verifying the tube current mA and the exposure time Toshiba E7272 x ray tube E 8 3 5 Verifying the tube current mA and the exposure time Toshiba E7290 x ray tube E 9 3 6 Verifying x ray beam alignment lslleeleeee re E 10 3 7 Verifying light field beam illumination lselle BB E 10 3 8 Verifying visually defined x ray fields llle E 11 3 9 Verifying electrical safety lille E 11 Chapter F ADJUSTMENT amp CALIBRATION 1 SPECIAL REGIONAL amp INITIAL SETUPS F 1 1 1 Regional setups before using the unit llli F 1 1 2 Other setups before using the unit 0 0 eee eene F 1 TOC 2 Sophie Mammography X ray unit Technical Manual TABLE OF CONTENTS 2 KEYBOARD CONTROLLED in normal mode F 3 2 1 Automatic kV mode cocos ex Ree e x ex ERR ERROR F 3 2 2 Automatic rhodium molybdenum filter selection mode 000 eee eee F 3 2 3 Default magnification factor eee F 4 2 4 Automatic release
170. nt left pedal outer edge switch signal right upper segment right pedal outer edge switch signal 11 we right lower segment right pedal inner edge switch signal left lower segment left pedal inner edge switch signal 12 Bucky amp Stereotactic identification signal n 0 no Bucky grid or Stereotactic system connected n 1 Bucky grid connected 12 n n 2 Stereotactic system connected no needle inserted n 3 Stereotactic system connected needle inserted n 4 6 Bucky grid connected 13 Bucky amp Stereotactic internal sensor signals eS left upper segment Bucky grid sensor or Stereotactic pulse sensor 1 right upper segment Stereotactic pulse sensor 2 13 2 right lower segment right side Stereotactic position sensor left lower segment left side Stereotactic position sensor 14 Exposure switch signal 14 vertical segment exposure switch signal 15 Keyboard amp Lamp test 15 nn nn matrix keyboard scan code All LEDs should be lit on panels when you press the automaic manual exposure key Technical Manual Sophie Mammography X ray unit C 11 Chapter C KEYBOARD FUNCTIONS amp MODES SERVICE MODE FUNCTION DETAILS 16 Compression force sensor output 16 nn nn hexadecimal value of the compression force sensor signal This display shows as a hexadecimal number the compression force sensor output used for internal factory tests only 17 Tube temperature sensor output
171. nual Sophie Mammography X ray unit D 15 Chapter D HELP AND ERROR MESSAGES DETAILED ERROR MESSAGE EXPLANATIONS ER59 Failure in internal emergency STOP system The REAR CPU is not able to pull low the internal emergency STOP signal If the STOP signal wiring is OK this signal can be found on almost all boards then replace the REAR CPU 4 7 ERRORS 60 68 serial communication amp CPU voltage related ER60 TUBE CPU internal x 15 VDC is out of limits The analog circuitry in the TUBE CPU board needs proper 15V voltages to operate Turn off the unit for at least 30 seconds and turn it back on If the problem still occurs replace the TUBE CPU If this doesn t help then replace the POWER SUPPLY ER61 Failure in communication between TUBE CPU and REAR CPU Possible open circuit or bad connection in the serial communication wire between the two pro cessors Trace the SCL named line from the REAR CPU to the TUBE CPU If this error occurs after replacing the software chips EPROMs in the unit please check that the program chip s are properly inserted in the socket s and the software installed on both processor boards are compatible and can be used together If everything seems to be OK check also for possible short circuits then replace the TUBE CPU or the REAR CPU in this order NOTE Please note that some earlier TUBE CPU boards had a jumper to determine the capacity of the software EPROM chip used After replacing th
172. oard ER82 REAR CPU CONFIG register contains wrong data The CPU chip on the REAR CPU board contains wrong data in one of its configuration registers this error occurs also if the chip is replaced with a wrong type or if the chip initialization data is wrong or corrupted Replace the REAR CPU board ER83 TUBE CPU CONFIG register contains wrong data The CPU chip on the TUBE CPU board contains wrong data in one of its configuration registers this error occurs also if the chip is replaced with a wrong type or if the chip initialization data is wrong or corrupted Replace the TUBE CPU board ER84 REAR CPU parameter EEPROM memory is empty or erased The CPU chip on the REAR CPU board contains a list of some system parameters that is miss ing Replace the REAR CPU board ER85 Flat NiCad battery for the battery back up memory RAM This error message could occur if the unit has been switched off for a prolonged period 1 to 3 months or longer or if the unit is not used more than a few minutes per day In this case this error doesn t mean necessarily that there is something wrong with the unit The time of day clock as well as many user selected parameters are stored in a memory on the REAR CPU board that relies on constant voltage backup This voltage is supplied by a rechargeable NiCad battery when the unit is switched off and the battery is charged whenever the unit is on If the unit is used on a regular basis but this error st
173. oltage abruption or drop was detected or error in detection circuitry Er87 Illegal country code or country code not set Er 88 Battery back up memory RAM is erased Er 89 Wrong type C ram rotation motor sensor in the EEPROM memory Er90 Wrong type of rotation motor rotation sensor must be a HEDS type sensor if Stereotactic system is used Er91 Error in the STEREOTACTIC sensor system both end limit sensors are on simultaneously Er92 Error in the MAG LOAD movement sensor system simultaneous signals from both end limit sensors Er93 Error in the compression system end limit sensors simultaneous signals from both end limit sensors Er94 Error in the C arm rotation sensor system simultaneous signals from the reference and or limit sensors Er95 Error in the lift mechanism sensor system simultaneous signals from both end limit sensors Er96 Error in the Bucky mechanism or in the sensor or in the movement of the mechanism This error is NOT dis played but is stored in the error list D 6 Sophie Mammography X ray unit Technical Manual Chapter D HELP AND ERROR MESSAGES ERROR MESSAGES SHORTFORM TABLE Table 14 Error Codes Short Form Table Continued Er ERROR MESSAGE EXPLANATIONS Er97 No pulses from the MAG LOAD motor rotation sensor or the motor does not rotate even if commanded Technical Manual Sophie Mammography X ray unit D 7 Chapter D HELP AND ERROR MESSAGES DETAILED ERROR MESSAGE EXPLANATIONS
174. on location The unit can be transported to the final location on its own wheels The only limit ing factors can be narrow doors or lifts and the fact that you need a mains outlet 208 240VAC within 3 meters from the unpacking location Unpacking the mobile version is similar to what is described below 2 2 Step by step unpacking instructions a Open and remove the 8 screws on the top of the crate cover Lift and remove the top cover Remove the four large Allen head bolts item 1 Remove the accessory box from the crate b Remove the 8 screws item 2 around the base of the crate and lift the rectangular crate carefully up and away Accessory box SPAC698 eps Technical Manual Sophie Mammography X ray unit B 3 Chapter B UNPACKING amp INSTALLATION UNPACKING THE UNIT c Unpack the transportation handle from the accessories box and install it at the top of the unit as illustrated The screws are already in the handle d Remove the 3 screws that hold the wooden rear support bar in place item 3 Remove the eight screws that hold the wooden front support bars in place item 4 Remove the support bars and the rear foam cushion Transportation handle SPAC598 eps e Slide the unit carefully to the rear by pulling from the handle until you reach the point of balance f Carefully let the unit wheels touch the floor and wheel the unit close to the place where it s going to be installed or u
175. on the top of the scale a soft pad about 5 10 cm thick could be a piece of soft foam plastic or a 1 2 liter soft bottle of infusion fluid or equivalent In the SERVICE mode press the CTL key and then press and hold the left LAT key for 3 seconds The C arm will now run to the CC position upright if not already in this position The upper compression paddle will now drive automatically to its highest position where a zero force calibration takes place lasts for about a second During this time you should not touch or load the compression paddle Drive the paddle normally downwards with the help of either the foot controls or the switches on the sides of the cassette table so that the center of the soft pad is at the center of the AEC sensor markings on the upper compression paddle Increase the compression until the scale shows 15 kg Tap gently the scale to get a truthful reading Press the CTL key to exits and store the new parameters into memory The C arm will automatically move to the CC position upright if not already in this posi tion Make sure there is room around the unit for this movement For convenience the old calibration values are not overwritten if the signal from the force sensor it totally out of range Technical Manual Sophie Mammography X ray unit F 13 Chapter F ADJUSTMENT amp CALIBRATION KEYBOARD CONTROLLED in service mode 3 6 X ray tube filament preheating voltage calibration
176. onsidered not to be optimum for the compressed breast 2 2 Automatic rhodium molybdenum filter selection mode OTDD ke hold for 3 seconds Press the CTL key and then press and hold the filtration key for 3 seconds Use the field light keys to change the setting The range is from 6 6cm to 9 9cm Press the CTL key to exit The factory default is 7 5cm 7 5 kg Automatic rhodium molybdenum filter selection is on The breast thickness can be changed with the field light keys The user can alter the filter as normally after the breast is compressed The automatic rhodium molybdenum filter selection is switched off by pressing the right field light key after the maximum breast thickness has been reached 7777 kg Automatic rhodium molybdenum filter selection is off The filter is selected manually The automatic rhodium molybdenum filter selection is switched on by pressing the left field light key Technical Manual Sophie Mammography X ray unit F 3 Chapter F ADJUSTMENT amp CALIBRATION KEYBOARD CONTROLLED in normal mode 2 3 Default magnification factor Setting in OOMOO EE Press the CTL key and the magnification key to set the default magnification factor The time force display shows the magnification symbol o and the current magnification factor Use the field light keys to change the setting from 1 30 to 1 80 in steps of 0 1 press the CTL key to exit The factory default value is 1 80
177. op print ing 4 7 Ignore errors temporarily hold for 3 seconds Pressing and holding the CTL key for 3 seconds ignores temporarily error codes that are related to motorized movements This function is useful in situations when the unit needs to be driven to a certain position but because of an possible error this would not be possible Error that are related with the safety of the unit cannot be ignored this way such as X ray tube related prob lems Technical Manual Sophie Mammography X ray unit C 9 Chapter C KEYBOARD FUNCTIONS amp MODES SERVICE MODE FUNCTION DETAILS 4 8 Diagnostic display of internal signals ODDO om l hold for nn display mode number 3 seconds segments on the right side of the decimal point indicates the sensor s signals s In the service mode press the CTL key and then press and hold the field light up key for 3 seconds Use the density keys to step to the desired mode please refer to the details below Press the CTL key to exit from this special display mode In this display mode it is possible to monitor the signals from virtually all sensors and switches reaching both the REAR and TUBE CPUs Additionally if the sensor s selected are related with a motorized function it is possible to control the related motor with the help of the field light keys CAUTION During this mode the sensors that normally operate as limit sensors are displayed but oth erwise fully ignored It
178. or then the ER20 is reported Make sure that there are no short circuited wires at the tubehead or at the COLLIMATOR BOARD and that all screws in the collimator are tight no screws touching the collimator board Replace the TUBE CPU board when you have ensured that there are no short circuits ER21 Filter stepper motor time out The filter driving mechanism inside the collimator assembly doesn t reach its limit sensor or the sensor signal is missing The sensor is located on the COLLIMATOR PCB that also have an indi cator LED that should be lit when the magnet is at the sensor The signal reaching the TUBE CPU can be monitored in the service mode for easier faultfinding Check the position of the mag net and sensor if the mechanism seems to work properly ER22 Collimator stepper motor time out OR Cutter motor time out The collimator driving mechanism inside the collimator assembly doesn t reach its limit sensor or the sensor signal is missing The sensor is located on the COLLIMATOR PCB that also have an indicator LED that should be lit when the magnet is at the sensor The signal reaching the TUBE CPU can be monitored in the service mode for easier faultfinding Check the magnet holder so that is not loose The cutter driving mechanism does not reach the reference optical slot sensor within a predeter mined time The sensor is located on the CUTTER PCB The mirror indicator LED located on the COLLIMATOR PCB should be lit when the mec
179. ot controls to clear this situation If the STOP cannot be cleared from the displays turn the unit off momentarily and if the STOP message still appears please check the condition of the STOP button switches 1 2 Help messages HEnn kg The HELP message nn any two digit number is shown on the clock display as long a key that has no function is pressed or if the function is not allowed The help display disappears automat ically when the key that caused it is released Please refer to paragraph HELP MESSAGES SHORTFORM TABLE on page D 2 for details about help codes HELP messages 0 to 9 have the same meaning as the respective ERROR codes For flexibility many of the HELP messages are NOT shown when the unit is in the SERVICE mode If the unit is reporting help messages not found in this manual please contact your Planmed dealer for a newer revision of the Technical Manual 1 3 Error messages Ernn kg The ERROR message nn any two digit number appears on the clock display if a fault or abnormal condition is detected The error must be cleared from the display with the CTL key before you can continue to use the unit The last 49 occurrences are stored in internal memory from where it s possible to check the unit s error history The date time and also exposure parameters are stored together with the error codes to improve the diagnostic value of the error memory Some of the ERROR messages 0 to 9 as well as STOP
180. ot is performed with the stop screw on the cutter assembly Fig F 16 1 Adjust the cutter position so that the area that has exposed over the cassette table front edge is between 2 mm 4 mm see Fig F 14 on previous page adjcut eps Figure F 16 F 40 Sophie Mammography X ray unit Technical Manual Chapter F ADJUSTMENT amp CALIBRATION MECHANICAL ADJUSTMENTS Checking the cleanness of the filters a Filter 1 Place a loaded large cassette on a cassette table Select 25 kV AEC filter 1 small focal spot Take an exposure and develop the film Check the exposed area Clean the filter if needed use soft cloth moistened with alcohol con taining preparation e g Solventol If the cleaning does not improve the image quality change the filter ladder assembly Filter 2 Place a loaded large cassette on a cassette table Select 30 kV AEC filter 2 small focal spot Take an exposure and develop the film Check the exposed area Clean the filter if needed use soft cloth moistened with alcohol con taining preparation e g Solventol If the cleaning does not improve the image quality change the filter ladder assembly Spot collimator Place a loaded large cassette on a cassette table Select 25 kV AEC spot collimator small focal spot Take an exposure and develop the film Check the exposed area Clean the filter if needed use soft cloth moistened with alcohol con taining preparation e g Sol
181. ouch the sensors under the black AEC sensor cover The AEC sensor and the cover can not be separated from each other Always change the whole AEC sensor assembly d Insert the new sensor assembly to its position The sensor cover must be at the same level as the cassette table cover Technical Manual Sophie Mammography X ray unit H 21 Chapter H PARTS REPLACEMENT amp REPAIR REPLACING CIRCUIT BOARDS 7 4 Tubehead assembly boards Mag control board 8 b Drive the C arm to straight upright CC position and turn off the power Remove the C arm top cover Beam window C arm lower cover and the Right C arm side panel see section C arm covers on page H 4 Disconnect all the connectors from the PCB Unscrew the two screws of the MAG motor assembly and remove the MAG motor assembly from the Tubehead Insert the new MAG motor assembly and connect the connectors to the PCB Replace the covers Tube processor board Follow the instructions given in section Replacing the Tube CPU software on page H 9 7 5 Keyboards amp displays Classic repl keyboard 210497 Turn off the power Remove the Hood and the Hood bottom cover plate see section Telescopic column covers on page H 2 and Hood on page H 6 Unscrew the six nuts of the Display PCB assembly Fig H 25 1 and remove the assembly from the hood Fig H 25 2 Install the new assembly When the membrane is changed clean the surface
182. page H 4 Remove the two screws and washers Fig H 12 2 of the power supply cover Fig H 12 1 Remove the cover Remove the single screw Fig H 12 3 holding the Tube CPU in place and carefully remove the board by first pulling it from the edge connector until it opens Replace the required fuse Fig H 12 4 or 5 Technical Manual Sophie Mammography X ray unit H 11 Chapter H PARTS REPLACEMENT amp REPAIR LIGHTFIELD BULB REPLACEMENT 4 LIGHTFIELD BULB REPLACEMENT CAUTION After a prolonged use of the unit the temperature of the bulb assembly can be reasonably high Allow the assembly to cool down before touching it NOTE Never touch the replacement bulb glass surface with you bare fingers Any grease or dirt on its surface will decrease its lifetime NOTE Use only the type of bulb recommended Figure H 13 a Drive the C arm to upright position Remove the C arm covers see section C arm covers on page H 4 b Remove the power supply see section REPLACING THE POWER SUPPLY on page H 18 c Disconnect the bulb wires Fig H 13 1 d Remove the lamp housing assembly from the installation plate by removing the two screws Fig H 13 2 e Remove the lamp holder Fig H 13 3 by loosening the two screws Fig H 13 4 f Remove the lamp housing Fig H 13 6 by removing the two screws Fig H 13 7 g Pull the bulb Fig H 13 5 out of the housing and replace with a similar one 12V 30W
183. ppen then this error is generated Check the sensors and the wiring The sig nals are visible on LEDs on the SHELF COLLECTOR PCB and can also be displayed in the ser vice mode ER93 Error in the compression mechanism sensor signals The two end limit sensor signals cannot be active simultaneously mechanically impossible If this would still happen then this error is generated Check the sensors and the wiring The sig nals are visible on LEDs on the FRONT COLLECTOR PCB and can also be displayed in the ser vice mode ER94 Error in C arm mechanism sensor signals The two end limit sensor signals or the ROTATION REFERENCE sensor signal cannot be active simultaneously mechanically impossible If this would still happen then this error is generated Check the sensors and the wiring The signals are visible on LEDs on the REAR COLLECTOR PCB and can also be displayed in the service mode D 18 Sophie Mammography X ray unit Technical Manual Chapter D HELP AND ERROR MESSAGES DETAILED ERROR MESSAGE EXPLANATIONS NOTE ER95 Error in lift mechanism sensor signals The two end limit sensor signals cannot be active simultaneously mechanically impossible If this would still happen then this error is generated Check the sensors and the wiring The sig nals are visible on LEDs on the REAR COLLECTOR PCB and can also be displayed in the ser vice mode ER96 Error in Bucky mechanism or sensor signal This error indicates mi
184. r 3 seconds LIFT MOTOR Lift motor crawling speed on CRAWLING SPEED Co Gai Gat gt Cm page F 5 hold for 3 seconds TIME amp DATE Setting correct time and date on ADJUSTMENT Ceo gt gt Co page F 6 TRANSPORT Transport position on page C 7 hold f POSITION C gt Ce 3 seconds TO FROM DENSITY Density offset adjustment on COMPENSATION Con gt a Ca Cen page F 6 ADJUSTMENT hold for 3 seconds AAEC CONTRAST AAEC contrast adjustment on ADJUSTMENT Con gt 93 gt Gai lt i gt page F 6 hold for 3 seconds AUTOMATIC Automatic film labeling on off on FILM LABELING Con gt sp Cen page F 6 ON OFF hold for 3 seconds right LAT key DISABLE Disabling bucky grid movement on BUCKY GRID gt d gt page F 7 MOVEMENT hold for 3 seconds ALARM SOUND Alarm sound frequency loudness FREQUENCY Con gt gt gt Cen on page F 7 loudness hold for 3 seconds IGNORE hold for Ignore errors temporarily on ERRORS Cen 3 seconds page C 9 TEMPORARILY DIMMING THE DIS Dimming the displays on page F 7 hold for PLAYS Con gt 3 seconds mA LIMIT gt Ce hold for mA limit on off on page F 7 3 seconds SERVICE MODE hidden hold for How to enter the service mode on I ENTRY on s key 4 seconds page F 8 Technical Manual Sophie Mammography X ray unit C 3 Chapter C KEYBOARD FUNCTIONS amp MODES SERVICE MODE FUNCTIONS SHORT F
185. r supply fuses Ratings e 1 6 AT 250V slow blow glass body 5 x 20 mm 1 piece e 5 AT 250V slow blow glass body 5 x 20 mm 1 piece Location These fuses are located inside the power supply To gain access to these fuses the power supply cover must be opened The 1 6 AT fuse is situated inside a black upright fuse socket close to the internal fan The 5 AT fuse is situated inside a black horizontal fuse holder that is mounted on a small vertical PCB The fuse socket must be slightly and carefully pulled upwards to replace the fuse H 10 Sophie Mammography X ray unit Technical Manual Chapter H PARTS REPLACEMENT amp REPAIR REPLACING FUSES Purpose The 1 6 AT fuse protects the internal soft start resistor that limits the initial surge current when turning on the unit This fuse blows only in case of component failure in the power supply If this fuse blows repeatedly the power supply must be replaced The 5 AT fuse protects the X ray tube anode motor stator windings in the case of a component failure inside the power supply If this fuse is blown the anode motor will not rotate an if it blows repeatedly then the power supply must be replaced Figure H 12 Replacing the fuses Drive the C arm to upright position Turn off the power and unplug the unit Wait for 2 minutes before proceeding Remove the following covers C arm top cover C arm lower cover and C arm vertical cover See C arm covers on
186. regarded as an infallible guide to current production specifications Planmed reserves the right to make changes to speci fications without prior notice This manual is valid for all versions of the Sophie Mammogra phy X ray units with SID 650mm In case you have the unit with SID 600mm you need a technical manual revision 9 NOTE THIS TECHNICAL MANUAL IS VALID FOR SOFTWARE REVISIONS TUBE CPU 2 41 OR LATER AND REAR CPU 4 41 OR LATER If you find that your SOPHIE doesn t have some keyboard functions or its keyboard functions differs from procedures described in this manual then either the software must be replaced with at least the above mentioned revision or you have to relate to an older version of this manual The former procedure is recommended 3 UNIT MODELS All Sophie Mammography X ray unit models are electrically and mechanically identical except for some minor details This manual is valid for all versions since the differences are small The darkroom versus daylight differs only in the size and dimensions of the cassette table and film marking device The mobile versus the stationary units differs only in the base wheel system and the X ray tube locking system for transportation Daylight units can be converted to darkroom units and vice versa please contact PLANMED for details A 2 Sophie Mammography X ray unit Technical Manual Chapter A GENERAL amp TECHNICAL DATA SOFTWARE REVISIONS amp
187. rts and this would make it inoperable and void the warranty Never make any exposures without the Mo AI filter in the beam or without the beam limit ing device collimator in place Otherwise the radiation safety cannot be guaranteed ELECTRICAL SAFETY RULES The unit contains hazardous voltages While servicing internal parts always disconnect the unit from the mains if possible by removing the plug from the wall outlet and wait for 2 minutes before touching any electrical parts Always replace the fuses with ones of the same type and rating Otherwise patient opera tor or equipment safety cannot be guaranteed The circuit boards can be damaged due to static discharges and requires careful handling and storage GENERAL SAFETY RULES The unit must be serviced only by qualified personnel trained by PLANMED Repairs and parts replaced by unqualified personnel carry no warranty Periodical maintenance as described in this manual must be performed on a regular basis to ensure the safety and image quality of the unit Some procedures described in the unit could jeopardize the function of the unit if not fol lowed as stated Technical Manual Sophie Mammography X ray unit A 1 Chapter A GENERAL amp TECHNICAL DATA MANUAL VERSIONS 2 MANUAL VERSIONS PLANMED pursues a policy of continuous product development Although every effort is made to produce up to date product documentation this manual should not be
188. s small focal spot 10mA 0 1s 1mAs The nominal shortest irradiation time in the AEC mode 20ms A 8 Sophie Mammography X ray unit Technical Manual Chapter A GENERAL amp TECHNICAL DATA USER S STATEMENT FOR PLANMED SOPHIE TOSHIBA 7 2 Toshiba E7272 x ray tube ratings Manual exposures With manual exposures the tube kV mAs and focal spot can be selected by the user The mA value is automatically determined by the selected kV value and the exposure time is determined by the selected mAs value The mA value used is always the highest possible value that depends on the kV value focal spot exposure time and line frequency see following table on the next page The maximum exposure time is 6 0 sec for the large focal spot and 9 9 sec for the small focal spot The minimum mAs value is 10 mAs and it can be increased in approx 20 steps to the maximum see values below The maximum mAs value for the large focal spot is either 300 500 550 or 600 mAs depending on the value of the service mode parameter 6 The maximum mAs value for the small focal spot is 200 mAs The possible mAs values are 10 12 14 16 18 20 25 30 35 40 50 60 70 85 100 120 140 160 180 200 225 260 300 350 400 450 500 550 600 Automatic exposures Automatic exposures are terminated when the radiation detector indicates that the required dose has been reached In this mode the kV is selected by the operator and mA is cho
189. s chapter contains detailed descriptions of all service mode keyboard functions except for all adjustment and setup functions Please refer to KEYBOARD CON TROLLED in service mode on page F 8 for details how to perform setups and calibrations con trolled in the service mode A shortform of all service mode functions can be found in the paragraph SERVICE MODE FUNCTIONS SHORT FORM on page C 4 4 1 Transport position CAUTION hold for Ceo C 3 seconds Ensure that there is free space around the unit so that the C arm doesn t hit any obstacles during the movement To stop the C arm in an emergency situation press either any of the STOP buttons or the foot controls Press the CTL key and press and hold the CC key for 3 seconds This key sequence drives the unit either to the transport position or back to normal upright posi tion After driving the unit to the transport position drive the C arm to its lowest position by press ing the C arm height adjusting down switch The unit should never be transported when not in the transport position In the transport position the unit runs the C arm as low as possible and turns the tube head against the floor This ensures that the center point of gravity is as low as possible 4 2 Display of internal temperatures NOTE mode Con Con 32C kg 41CP kg TUBE HEAD POWER SUPPLY temperature temperature Press the CTL key when in the service mode to toggle betw
190. s in the Mag down position Fig F 26 6 Magdo98 eps Figure F 27 If the signal s on the display does not light when the magnet is at the sensor or there are electrical problems see MAG LOAD mechanism on page G 2 Technical Manual Sophie Mammography X ray unit F 53 Chapter F ADJUSTMENT amp CALIBRATION ADJUSTING SENSORS amp SWITCHES 6 4 Labeling head disk position sensor a Drive the C arm to the upright CC position b Enterthe service mode and select the display of internal signals mode 03 see SERVICE MODE FUNCTIONS SHORT FORM on page C 4 c When the labeling head disk magnet points to the hall sensor on the LABELING PCB the LED D12 CRL on the SHELF CIRCUIT BOARD lights as well as right middle signal on the display If the LED D12 does not light see LABELING on page G 4 Figure F 28 d Check that the labeling head disk is rotating freely and does not hit the cover the frame or cables 6 5 C arm rotation sensor NOTE The adjustments described in this section must be performed with extreme caution The wrong adjustment of the limit sensors may cause collision which can cause injury or damage Before adjustment and especially after replacing the limit sensor check its con dition with a separate magnet a Remove the necessary covers see instructions described in chapter H sections 1 1 1 2 1 3 and 1 5
191. s to set it right Check the correct value from the tube label b Thecurrently set bias value for the small focus is displayed on the kV display If the value is wrong press the kV UP key and then use the field light keys to set it right Check the correct value from the tube label Performing the calibration procedure a Gotothe exposure switch and stand behind a radiation shield b Press and hold the EXPOSURE switch and wait until the series of exposures ceases Press the CTL key to exit Releasing the switch during the calibration cycle is allowed the calibration continues when the switch is again activated The cycle must be successfully completed otherwise the system could produce ERROR messages ER12 ER30 or Er33 If Er17 is appearing to the display then the bias parameters for the tube type C are not properly set 3 7 AEC sensor calibration um CoD Gd s phantom gt m hold for hold until g3 seconds finished NOTE The AEC mode must be activated when entering the service mode Why and when to calibrate This calibration must be performed whenever the AEC sensor TUBEHEAD or the TUBE CPU alone or together with the POWER SUPPLY is replaced with an other one or during the annual service to ensure the AEC performance Instruments and tools required You need a special manufactured test phantom spare part number 7003002 to be able to per form this calibration properly Please note that entering this calibration mode
192. se can be found replace the FORCE sensor assembly together with the STRAIN GAUGE As the last remedy replace the REAR CPU The unit can be temporarily operated even if the force sensor is faulty ER29 Keyboard key short circuit This error can occur only during the self test During the self test the unit checks that all keys are open normal state if not pressed If a key is found to be in short circuit this error is displayed Because the keyboard keys are arranged in a matrix one key s short could cause the whole key board to act erroneously therefore this check is important Normally the unit can be operated even if one keyboard is faulty since they operate independently You still have to determine which keyboard is the faulty one 4 4 ERRORS 30 38 tube head and power supply related These errors are related to software diagnostics monitoring the performance of the x ray tube and power supply before and during exposures All these errors stop the radiation immediately even in the middle of an exposure The partially exposured film should be developed to see if a retake is necessary ER30 X ray tube Anode voltage kV missing or too low The tube voltage is sampled periodically by the TUBE CPU and if the actual measured kV value is below the setting this error is displayed Check that the incoming mains voltage doesn t drop below 187 Vrms during the exposure A partial failure of the voltage multiplier inside the tube head could
193. sed The factory default is n 0 F 18 Sophie Mammography X ray unit Technical Manual Chapter F ADJUSTMENT amp CALIBRATION KEYBOARD CONTROLLED in service mode 15 Auto kV offset n Auto kV system kV offset value Setting in 15 n kg range from 3 to 3kV one step equals one kV this unit The factory default is n 0 uses factory default Auto kV values Use this adjustment to change fine tune the suggested Auto kV setting if the suggested kV value differs from the desired 16 cm display offset adjustment n cm display offset Setting in 16 n kg range 9 25 mm one step equals one mm this unit The factory default is n 0 Use this feature to cancel the error between the actual cm display and the minimum distance between the compression paddles 17 Height of SPOT paddle n height of SPOT paddle millimeters Setting in 17 n kg range 30 90 mm one step equals one mm this unit The factory default is n 40 Use this feature to compensate for the different thicknesses in dif ferent type of SPOT paddles After programming the correct height of the SPOT paddle in use the compression thickness display will show correct values with all paddles including the SPOT 18 Duration of the filter selection time out n filter selection time out Setting in 18 n kg range 1 10 sec one step equals one sec this unit The factory
194. sed CAUTION Be careful not to drop the unit when levelling it down to the floor It s quite heavy and must be handled by a strong person s It s always a good idea to use a helping hand or two CAUTION NEVER lift it from the FOOT PEDALS C ARM or HOOD When handling the unit lift the unit from the metal base and or the transportation handle Pallet98 eps B 4 Sophie Mammography X ray unit Technical Manual Chapter B UNPACKING amp INSTALLATION UNPACKING THE UNIT 2 3 Driving the unit out of the transportation position a Move the unit to the location where it s going to be used b Make sure that there is enough room around the unit so that the C arm can rotate without hitting any obstacles Plug the unit to a mains 208 240V outlet and switch it on c Wait for the unit to perform its self tests about 10 seconds Drive the unit to the normal operating position by pressing the CTL key and then pressing and holding the CC key for three seconds or drive the C arm 300mm upwards with the C arm cassette table up switch d Remove the C arm locking knob by turning it clockwise Insert the cover plug to the hole e The transportation handle can now be removed and the supplied plastic plugs inserted to cover the holes in the hood 3 sec ON OFF switch trpos98 eps v
195. sed down If the foot control is below the unit s base check that the base does not press the switches down If not the most probable cause is a faulty foot control cable 4 8 ERRORS 71 78 CPU software related The errors 71 77 usually indicate an error that is either processor circuitry related or an internal software error In this case please contact Planmed and if possible report the exact circum stances when this error occurred as well as the software version and unit serial number ER71 Software chip EPROM failure on the TUBE CPU Check that the EPROM is properly inserted in its socket on the TUBE CPU all pins make a good contact If so it could be that the contents of the ERPOM is not valid Replace it with a new soft ware chip before continuing to use the unit When replacing software please use only compatible versions D 16 Sophie Mammography X ray unit Technical Manual Chapter D HELP AND ERROR MESSAGES DETAILED ERROR MESSAGE EXPLANATIONS ER72 Software chip EPROM failure on the REAR CPU Check that the EPROM is properly inserted in its socket on the REAR CPU all pins make a good contact If so it could be that the content of the ERPOM is not valid Replace it with a new soft ware chip before continuing to use the unit When replacing software please use only compatible versions ER73 REAR CPU illegal program instruction If this occurs repeatedly try first to replace the software c
196. sen to be the maximum allowed mA for the selected kV and Hz line frequency If the exposure time is longer than 1 sec 5 sec for the small focal spot then a falling load tech nique is used The exposure is started at the mA as specified in the following tables The accu mulated dose is checked at 0 45 sec 2 45 sec for the small focal spot and if it has reached more than half of the required dose the exposure can be continued at the same mA level and will be terminated within 1 second 5 seconds for the small focal spot well before the tube is over loaded If the accumulated dose is detected to be less than half of the required a longer exposure time than the one specified for the tube current can be expected Therefore the tube current is reduced at this time after 0 45 or 2 45 sec exposure to a lower mA that when added to the already produced tube loading will not exceed the maximum tube rating The falling load current levels are listed in the two following tables Thermal ratings Two separate methods are used to protect the tube from overload One is measuring the tube head enclosure temperature and if it exceeds 60 C no further exposures are allowed until it falls below 60 C The other method keeps the average input power into the tube below or equal to 500W The exposure parameters are limited as indicated by the following tables but this feature forces a waiting time between the exposures to ensure that the average power
197. sons are Spurious X ray tube arcing that should be considered quite normal if it doesn t occur frequently If this error occurs frequently or all the time change the POWER SUPPLY TUBE CPU TUBE HEAD in this order ER14 AEC sensors are not calibrated See paragraph AEC sensor calibration on page F 15 for details how to perform the calibration The TUBE CPU has internal memory that contains parameters such as AEC sensor calibration values and the pre heat voltages for the x ray tube filaments These parameters must be re cali brated whenever the TUBE CPU is replaced alone or together with the POWER SUPPLY ER15 AEC sensor calibration failure This error occurs only during the calibration procedure The TUBE CPU is not capable to adjust the AEC sensor gain in such a way that the parameters would fall within an allowed range Check that you have nothing else in the beam such as a cassette compression paddle or other obstacles except for the AEC calibrating phantom and that the phantom is covering the whole sensor surface the black area at the front of the cassette table If the error still occurs check the sensor cables and connectors If no problem with these can be found replace the AEC sensor assembly and as the last remedy the TUBE CPU During calibration calibration failure during exposure sensor not calibrated or there is no sig nal or weak from the sensor after 400 ms ER16 AEC sensor feedback cable open circuit
198. ssing steps in the stepper motor that controls the Bucky grid movement If the grid is totally jammed or the sensors is faulty then ER24 is generated If there are visible grid lines on the film please check the error list for ER96 occurrences Check the proper opera tion of the grid movement with the help of the service mode The grid plate should not hit either side of the support mechanism during the reciprocating movement The error ER96 is NOT displayed it is only stored in the internal error list If the exposed films have signs of grid lines especially with exposure times longer than 0 4 sec check the error list for ER96 occurrences ER97 No pulses from the MAG LOAD motor rotation sensor a b If the motor doesn t rotate please check for mechanical obstruction check motor condition and cables going to the MAG PCB and from here to the POWER SUPPLY and TUBE CPU If the motor rotates Check the rotation sensor wires to the MAG PCB The motor rotation sensor could be faulty the magnet is with the wrong pole against the sensor after replacing parts or the magnet too far from the sensor The signal can be monitored in the service mode If this error occurs after the initial self test the STOP signal does not reach the TUBE CPU board Follow this signal all the way from the REAR CPU board to the TUBE CPU there is a break somewhere If no error is found and the STOP circuitry is otherwise operational then replace the TUBE C
199. t arm position to extreme left 135 4 left middle segment motor rotation sensor signal 06 X right middle segment arm rotation reference sensor signal 10 right lower segment arm position to extreme down 180 07 Compression mechanism sensors Hall sensor signals amp motor drive a right upper segment at highest TWINCOMP release position 07 En right middle segment at upper position right lower segment at lowest position full compression 08 Cassette table size and cassette in place sensor switch signals right upper segment large cassette position switch signal 08 right middle segment cassette detector switch signal right lower segment small cassette position switch signal 09 Lower compression paddle size sensor switch signals pe auma no ges beer A h eft lower segment small paddle left switc 09 as right lower segment large paddle right switch both lower segments paddle tilted upwards 10 Cassette table control switch signals left upper segment C arm counterclockwise signal upper right side switch 10 right upper segment drive unit up switch signal T right lower segment drive unit down switch signal left lower segment C arm clockwise signal lower right side switch Note that the operation of the left side C arm rotation switches is opposite of the operation of the right side switches 11 Foot pedal switch signals left upper segme
200. t sensors are connected correctly Wrong connections may cause injury or a damage 7 3 C arm pc boards Shelf collector PCB o oO 9 d Drive the C arm to straight upright CC position and turn off the power Remove the Cassette table cover see section Cassette table cover on page H 7 Disconnect all connectors from the PCB Detach the PCB from its holders see instructions given in section REPLACING CIRCUIT BOARDS on page H 19 Insert the new PCB Connect all wires to the PCB Replace the Cassette table cover H 20 Sophie Mammography X ray unit Technical Manual Chapter H PARTS REPLACEMENT amp REPAIR REPLACING CIRCUIT BOARDS Force sensor PCB a Drive the C arm to straight upright CC position and turn off the power b Remove the required C arm covers see section C arm covers on page H 4 C Disconnect the connector from the PCB d Loosen the Force sensor circlips Fig H 23 1 Unscrew the two screws of the Force sensor PCB Fig H 23 2 and remove the PCB Fig H 23 3 e Replace the new PCB in reverse order Figure H 23 AEC sensor PCB a Drive the C arm to straight upright CC position and turn off the power b Unscrew the four screws of the AEC sensor cover Fig H 24 1 c Liftthe AEC sensor assembly carefully from the cassette table Fig H 24 2 Disconnect the AEC cable connector from the assembly Fig H 24 3 Figure H 24 NOTE Do not t
201. t the rear of the tube head The sensor is a NTC resistor and has a nominal resistance of 1kQ at 25 C Check the cable and connector from the sensor to the MAG PCB and or the connector and cables from the MAG PCB to the POWER SUPPLY The sensor can be verified with and ohm meter The other wire of the sensor is con nected to the chassis ground at the rear of the tubehead cast check that this wire is not loose or open ER52 Filament voltage feedback open circuit There is an open circuit in the filament voltage feedback from the TUBE HEAD to the TUBE CPU When the feedback signal is open circuited the TUBE CPU prevents all exposures normal and service mode to ensure TUBEHEAD safety Check the condition of the 32 way TUBEHEAD connector and the mating one in the POWER SUPPLY Remove the POWER SUPPLY and mea sure the filament feedback resistance at the 32 way tubehead connector please refer to the schematics Replace the TUBE CPU POWER SUPPLY or TUBE HEAD in this order if you cannot find the problem ER53 Power Supply Heatsink temperature sensor short circuit All exposured are inhibited by the TUBE CPU during this condition The temperature of the heat sink inside the POWER SUPPLY is measured by the TUBE CPU with a similar sensor as the tubehead temperature see ER50 This sensor is located inside the POWER SUPPLY and can not be replaced Replace the TUBE CPU or the POWER SUPPLY in this order ER54 Power Supply Heatsink temper
202. tation and handling is included KEYBOARD FUNCTIONS amp MODES on page C 1 This chapter contains a complete short form presentation of all available special keyboard func tions For explanation of normal user operation Please refer to the SOPHIE USER S MANUAL The special display modes are also described here The detailed descriptions of all adjustments performed with the help of the keyboards can be found in the chapter ADJUSTMENT amp CALIBRATION on page F 1 HELP AND ERROR MESSAGES on page D 1 This chapter contains general information as well as a complete short form presentation of all available special messages STOP HELP ERROR that can appear on the displays A detailed description of the error messages and their reasons is also included PREVENTIVE MAINTENANCE on page E 1 This chapter describes the operators maintenance Complete step by step instructions how to check the performance of the unit are also included Some of these checks must be performed annually and before using the unit ADJUSTMENT amp CALIBRATION on page F 1 This chapter contains detailed instructions of how to perform keyboard controlled adjustments and calibrations mechanical adjustments and sensor amp switch adjustments GENERAL amp TECHNICAL DATA on page A 1 For help and guidance with general troubleshooting and faultfinding please refer to this chapter It contains information of how to proceed in possible problematic situations
203. the multimeter to the voltage range Turn on the power to the Radiation monitor by rotating the FUNCTION SELECTOR knob to the MEASURE position Select the PULSE DURATION mode from the MODE SELECTOR of MDH Set the PULSE DURATION THRESHOLD to 70 using the thumbwheel on the MDH Turn on the SOPHIE The X ray unit may be damaged if the power is turned on when the multimeter is on the resistance range Select 20kV 50mAs and small focus from the control panel of SOPHIE Make sure that the Automatic kV selection and the AEC modes are not selected Take an exposure and record the multimeter voltage value U during exposure Record also the time reading on the display of MDH The right current I value is calculated from the measured voltage value by dividing it by the measured resistance value e g e R 34 20 U 341mV U R 341mV 34 20 9 98mA The corresponding mAs value is calculated by multiplying the mA value by the exposure time value Perform exposures with the following values e 20kV 50mAs 20mA 2 5 sec small focus 35kV 14mAs 14mA 1 sec small focus 20kV 350mAs 70mA 5 sec large focus 35kV 300mAs 60mA 5 sec large focus Rejection limits e All measured mA values must be within x 4mA of the pre selected mA values when the large focus is used and within 1mA when the small focus is used e All measured times must be within 4 of the pre selected times e For mAs values that are less than 4
204. the unit when the REAR COLLECTOR PCB has been removed If the arm still rotates without the user intervention replace the SYNC PCB If there is not rotation but this error still occurs check the motor rotation sensor signal that there are no spurious pulses Replace the SYNC or REAR CPU ER43 C ARM motor rotation sensor pulses don t reach the REAR CPU a Ifthe motor doesn t rotate please check for mechanical obstruction check motor condition and cables going to the SYNC PCB check motor capacitor condition and connections Check cables from SYNC PCB to REAR COLLECTOR PCB Replace the SYNC PCB if necessary b Ifthe motor rotates Check the rotation sensor wire from the motor to the REAR COLLECTOR PCB The motor rotation sensor could be faulty The signal can be monitored on the REAR COLLECTOR PCB as well as in the service mode NOTE The motor contains a self resetting circuit breaker that operates if the motor becomes too hot Allow the motor to cool down before continuing the faultfinding ER44 MAG motor is rotating even if not commanded or spurious pulses from sensor If the motor really is running by itself it might be because of a failure on the MAG PCB in close proximity with the motor Check the pulse sensor cable connections ERAS LIFT motor is rotating even if not commanded spurious pulses from sensor If the motor is running by itself change the check or change the BASE PCB If the motor is not running by itself please c
205. time 450ms x100mA d Repeatthe above procedure using the same settings but with sensors 2 and 3 Measurement Procedure Toshiba E7290 x ray tube a Select 28 kV AEC mode filter 1 30 um Mo sensor 1 from the SOPHIE CLASSIC panel b Take an exposure c Readthe exposure time on the display of MDH and calculate the corresponding mAs value according to the formula exp time x 110mA d Repeatthe above procedure using the same settings but with sensors 2 and 3 Rejection limit All measured mAs values must be less than 700 mAs Technical Manual Sophie Mammography X ray unit E 5 Chapter E PREVENTIVE MAINTENANCE OTHER PREVENTIVE CHECKS 3 OTHER PREVENTIVE CHECKS 3 1 Verifying compression force measurement a Place the scale on the cassette table and a soft pad thickness 5 10 cm between the upper compression paddle front edge and the scale b Run the upper paddle down until the scale shows 15 kg Check that the unit shows the same value within 1 5 kg 13 5 16 5 kg If not please see paragraph Compression force measurement calibration on page F 13 how to calibrate 3 2 Verifying filament pre heating voltages It is recommended that the filament preheating voltages are calibrated they cannot be mea sured once a year to compensate for any changes in the X ray tube parameters See paragraph X ray tube filament preheating voltage calibration on page F 14 how to perform this 3 3 Verify
206. to the sche matics Replace the TUBE CPU POWER SUPPLY or TUBE HEAD in this order if you cannot find the problem 4 5 ERRORS 40 49 sensor amp switch related ER40 Lower compression paddle is tilted upwards If this error occurs the MAG LOAD mechanism movement towards the contact view position is inhibited Make sure that the lower paddle doesn t collide with the cassette or any other objects Check also the operation and correct adjustment of the paddle size identification switches The signals reaching the REAR CPU can be monitored in the service mode for easier faultfinding There are also LEDs on the front collimator PCB displaying the signals from these two microswitches Technical Manual Sophie Mammography X ray unit D 13 Chapter D HELP AND ERROR MESSAGES DETAILED ERROR MESSAGE EXPLANATIONS ERAI C ARM LIFT or Compression position information was lost or erroneous The position information is stored on the REAR CPU in battery backup RAM If the unit has been stored for several months some positional information might be lost Running the respective mechanisms from end to end will restore the position information ER42 C ARM is rotating even if not commanded or spurious pulses from sensor If the C ARM really rotates after turning on the power check that the connectors at the REAR COLLECTOR PCB are not cross connected some of them have the same pin count This could be the case especially after servicing
207. ues into memory F 16 Sophie Mammography X ray unit Technical Manual Chapter F ADJUSTMENT amp CALIBRATION KEYBOARD CONTROLLED in service mode 3 9 Special system parameters setup mm COS C COO CD ED C MM hold for 3 seconds In the service mode press the CTL key then press and hold the mAs down key for 3 seconds Use the density up down keys to move to the desired mode Change the parameter value with the field light keys Exit by pressing the CTL key This key sequence enters the special system parameter setup mode Currently there are 41 different parameters available If the actual number of parameters docu mented differs from the actual unit please make sure that you are using a manual that is compat ible with the software installed in the unit 01 Maximum compression force n maximum compression force kg iting i 01 n kg The range is from 5 to 25 kg us E Factory preset is 20 kg i 02 Mode of C arm rotation n 0 C arm moves directly but Stereotactic Setting in 02 n kg movement needs footpedal g this unit n 1 All C arm movements need foot 03 Maximum speed of UP DOWN movement n speed of UP DOWN movement ingi 03 n kg speed range from 1 slowest to 6 fastest Seung gt this unit factory preset is 4 04 Mode of UP DOWN movement n 0 Cannot run during compression Setting in 04 n kg n 1 25
208. um the required mAs is always achieved at highest possible tube current for the kV selected The parameters are listed in the following table Automatic exposures Automatic exposures are terminated when the radiation detector indicates that the required dose has been reached In this mode the kV is selected by the operator and mA is chosen to be the maximum allowed mA for the selected kV If the exposure time is longer than 1 sec 5 sec for the small focal spot then a falling load tech nique is used The exposure is started at the mA as specified in the following table The accumu lated dose is checked at 0 45 sec 2 45 sec for the small focal spot and if it has reached more than half of the required dose the exposure can be continued at the same mA level and will be terminated within 1 second 5 seconds for the small focal spot well before the tube is over loaded If the accumulated dose is detected to be less than half of the required a longer exposure time than the one specified for the tube current can be expected Therefore the tube current is reduced at this time after 0 45 or 2 45 sec exposure to a lower mA that when added to the already produced tube loading will not exceed the maximum tube rating The falling load current levels are listed in the following table Thermal ratings Two separate methods are used to protect the tube from overload One is measuring the tube head enclosure temperature and if it exceeds 60 C no
209. urn off the power for at least 30 seconds Technical Manual Sophie Mammography X ray unit G 1 Chapter G TROUBLESHOOTING amp FAULTFINDING MOTOR amp MOTION RELATED PROBLEMS 3 MOTOR amp MOTION RELATED PROBLEMS 3 1 DC motors MAG LOAD mechanism a ELECTRICAL PROBLEMS Enter the service mode and select the display internal signals mode 04 If the signal on the display does not light when the magnet is at the limit sensor e Measure the operating voltages of PCB 15 V 33 V e Check the condition of the hall sensor e In the Mag up position check if the indicator LED D2 on the SHELF COLLECTOR PCB 1 lights e n the Mag down position check if the indicator LED D1 on the SHELF COLLECTOR PCB lights If the LEDs on the SHELF COLLECTOR PCB has lit but the display signals do not light the fail ure is between the SHELF COLLECTOR PCB and the TUBE CPU or in them Turn off the unit and measure the resistances of wires given in table below If needed check all the wiring from the SHELF COLLECTOR PCB 1 to TUBE CPU 2 If the signals are OK but the signals on the display do not lit change the TUBE CPU 04 ki Mag load electrical 290997 Figure G 1 G 2 Sophie Mammography X ray unit Technical Manual Chapter G TROUBLESHOOTING amp FAULTFINDING MOTOR amp MOTION RELATED PROBLEMS FROM TO Shelf collector PCB Tube interface cable Connector Pin Connector P
210. use this error so these surfaces must be totally clean and grease free and the power supply firmly tightened to the tube head not too tight ER11 X ray tube anode kV voltage dropped suddenly This condition is monitored by the TUBE CPU hardware during the whole exposure and if the voltage suddenly drops more that 6 kV below the actual setting the exposure is aborted and this error indicated Possible reasons are X ray tube housing arcing a knocking sound can be heard ether spuriously should be considered quite normal if it doesn t occur frequently Make the same tests as in ER10 ER12 X ray tube filament pre heating voltages are not calibrated See paragraph X ray tube filament preheating voltage calibration on page F 14 for details how to perform the calibration The TUBE CPU has EEPROM nonvolatile memory that contains parameters such as the preheat voltages for the x ray tube filaments and AEC sensor calibra tion values These parameters must be re calibrated whenever the TUBE CPU is replaced alone or together with the POWER SUPPLY Technical Manual Sophie Mammography X ray unit D 9 Chapter D HELP AND ERROR MESSAGES DETAILED ERROR MESSAGE EXPLANATIONS ER13 X ray tube anode current mA was too high This condition is monitored by the TUBE CPU hardware during the whole exposure and if the current suddenly jumps above 180 mA the exposure is immediately aborted and this error indi cated Possible rea
211. ventol If the cleaning does not improve the image quality change the filter ladder assembly Technical Manual Sophie Mammography X ray unit F 41 Chapter F ADJUSTMENT amp CALIBRATION MECHANICAL ADJUSTMENTS 5 5 Light field beam adjustment 8 b Place a loaded large cassette on a cassette table so that it overhangs on the cassette table front edge Fig F 17 1 Drive the moving collimator to the lower position small cassette position Enter the service mode see How to enter exit the service mode on page C 4 e Select the display of internal signals mode 02 see Diagnostic display of internal signals on page C 10 Pressthe field light keys to drive the moving collimator to the lower position Switch on the light field Place small metal objects e g coins to the corners of the light field Fig F 17 2 Select 25 kV AEC small focal spot filter 1 Take an exposure and develop the film Check the misalignment between the light field marked with coins and the X ray field on the film The maximum allowed misalignment of the fields is x4 mm Fig F 17 3 If needed adjust the bulb housing in the collimator frame Fig F 17 4 e Turn off the power e Remove the power supply see chapter H section Replacing the power supply e Loosen the bulb housing fixing screws Fig F 17 5 and turn the lamp assembly Fig F 17 6 Tighten the screws replace the power supply and take a new e
212. w to 6 speedy Press the CTL key to exit This key sequence set the lowest crawling speed for the lift motor UP DOWN movement of the unit used for fine adjusting the height The TIME CM display shows the current setting The fac tory default is 4 The maximum lift motor speed can be set in the service mode see 03 Maxi mum speed of UP DOWN movement on page F 17 Technical Manual Sophie Mammography X ray unit F 5 Chapter F ADJUSTMENT amp CALIBRATION KEYBOARD CONTROLLED in normal mode 2 10 Setting correct time and date gt gt HM Gs M m FT nr 13 45 27 09 1993 time f year Press the CTL key and then press the sensor key once or repeatedly to step to the parame ter s to be adjusted the sequence is as illustrated above minutes hours day month years century minutes The parameter to be altered with the field light key is blinking Press the CTL key to exit at any time Upon exit the non visible seconds counter is zeroed The clock is set at the factory to local time and should be set to show correct time date before using the unit 2 11 Density offset adjustment NOTE D gt CO CIO C2 Weir hold for 3 seconds Press the CTL key and the press and hold the density key for 3 seconds Use the field light keys to set the display to the same value you had to use in the normal user density compensation to achieve YOUR own ZERO density Press the C
213. wards carefully so that the locking stud just touches the locking knob e Adjust the detector plate s position so that when the locking stud touches the locking knob the distance between opto sensor middle line and the upper edge of the detector plate is 26mm Fig F 36 3 e Adjust the position of the detector plate as follows mobile Sophie unit e Drive the C arm downwards carefully so that the distance between the locking stud and the locking knob is 3 4mm e Adjust the detector plate s position so that the distance between opto sensor middle line and the upper edge of the detector plate is 26mm Fig F 36 4 Lift98 eps Figure F 36 F 60 Sophie Mammography X ray unit Technical Manual Chapter F ADJUSTMENT amp CALIBRATION ADJUSTING SENSORS amp SWITCHES 6 7 Cassette table size identification switches Preparations a Drive the C arm to the upright CC position b Enter the service mode and select the display of internal signals mode 08 see SERVICE MODE FUNCTIONS SHORT FORM on page C 4 Fig F 38 1 Cassette table mechanical adjustment a Adjustment is performed with both small and large cassette b Remove the cassette table top cover C Adjustment of the side guides e Check that the side guides move freely and straight e Loosen the lever holder Fig F 37 3 screws e Place the small cassette Fi
214. without a continuous activation of a foot control switch See paragraph 02 Mode of C arm rotation on page F 17 for instructions how to change this behavior Correct time and date See paragraph Setting correct time and date on page F 6 for how to set the internal clock and calendar However this is not essential for the normal operation of the unit 1 2 Other setups before using the unit 8 Film screen combination To ensure correct optical density please set this parameter according to the type of film and intensifying screens used Please refer to the Sophie Users Manual If you want to use film Screen combination which is not listed in the user s manual adjust the AEC for the selected combination as follows e Select the film screen combination number 0 Technical Manual Sophie Mammography X ray unit F 1 Chapter F ADJUSTMENT amp CALIBRATION SPECIAL REGIONAL amp INITIAL SETUPS e Set all the density parameters to value 0 Density offset see section Density offset adjustment on page F 6 Special system parameter 13 Density fine adjustment see section 13 Density fine adjust ment sensor 1 on page F 18 e Select desired AEC optical density i e 1 2 or 1 6 see section 30 AEC optical density selec tion on page F 20 e Select the AEC mode not advanced AEC Take a test exposure with a 40 mm thick plexiglass phantom If the film density level is too high adjust the spe
215. xposure e Repeat the above procedure if needed If the misalignment in the back front direction is more than 4 mm Fig F 17 7 adjust the light field with the mirror angle adjusting screw Fig F 17 8 NI e Figure F 17 F 42 Sophie Mammography X ray unit Technical Manual Chapter F ADJUSTMENT amp CALIBRATION MECHANICAL ADJUSTMENTS 5 6 Filter position adjustment The position hall sensor is situated on the COLLIMATOR PCB The final position of the filter lad der is adjusted by moving the sensor by adjusting the horizontal placement of this PCB fixing hole are oval ones The position of the other two mirror and collimator sensors will change as well but the position of these is not very critical 5 7 Twincomp paddle damper adjustment a Turm the absorber adjusting screw 1 fully clockwise You may have to hold the axle to prevent it from rotating b Lift up the paddle to the horizontal position and wait for about 10 seconds to allow the absorber to reset internal oil pressure equalized c Release the paddle manually by pushing it slightly downwards Note the release speed d Ifthe release speed is too slow or fast turn the adjustment screw counter clockwise a quarter degree at a time and repeat from point b Remember to wait between the tests ER 5 8 Gas spring tension adjustment a Drive the C arm fully uprig
216. y the text AHHH and then replaced by the temperature display of the tube head assembly CAUTION This special service mode is intend only for the experienced service technician and should not be entered under normal circumstances by the user F 8 Sophie Mammography X ray unit Technical Manual Chapter F ADJUSTMENT amp CALIBRATION KEYBOARD CONTROLLED in service mode 3 2 Factory preset recalling settings for all parameters service hold for mode Co 3 seconds CAUTION Performing this function results in loss of all individual setups of all operating parame ters However these are replaced with factory predetermined settings leaving the unit fully functional Why and when to make a factory preset This function is used as the name indicates at the factory to program shipped units to a pre defined state Spare part CPU boards that contain the actual parameter memories are also treated this way This mode is useful also if the unit has been in use before the installation How to perform the factory preset Being in the service mode pressing the CTL key and then press and hold the automatic man ual exposure key for 3 seconds Table 4 Normal mode parameters affected by the factory default Parameter factory default for details setting in this unit Automatic kV selection On page F 3 Automatic Rh Mo filter selection On 7 5cm page F 3 Default MAG factor

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