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Service Manual

Service Instructions

Siemens Ltd. Med India

Version 6.0

Copyright



SIEMENS LTD. All rights reserved. For internal use only

7-13

2 1

I > Iheiz

This CODE is displayed if the filament current exceeds 4.1V in prepation
state.

2 2

Maximum Preparation
Time

This CODE is displayed if First step is pressed for more than 15 sec.

7.19 Specific CODE Handling

7.19.1 Unit not turning ON

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Содержание 25

Страница 1: ...005 The reproduction transmission or use of this document or its contents is not permitted without express written authority Offenders will be liable for damages All rights including rights created by patent grant or registration of a utility model _or_ design _are_ reserved SP Troubleshooting Guide ...

Страница 2: ...TD All rights reserved For internal use only 7 1 Multimobil 2 5 Med Service Instructions Version 6 0 Copyright SIEMENS LTD MED INDIA The reproduction transmission or use of this document or its contents is not permitted without express written authority Offenders will be liable for damages ...

Страница 3: ... 9 FILAMENT CURRENT MEASUREMENT 7 8 7 10 CHECKING THE HIGH VOLTAGE KVSOLL AND KVIST 7 8 7 11 SETTINGTHE MAXIMUM FILAMENT FREQUENCY 7 8 7 12 CHECKING THE TUBE CURRENT 7 8 7 13 CHECKING THE KV AND TUBE CURRENT JR 7 9 7 14 CHECKING THE MAS VALUES 7 9 7 15 ADJUSTING THE MAS 7 9 7 16 SWITCHINGTHE COLLIMATOR LIGHT ON 7 9 7 17 PROGRAM MODES FOR SERVICING 7 9 7 17 1 Program 1 7 10 7 17 2 Program 2 7 10 7 ...

Страница 4: ...rotective ground wire connection in the power cable must not be interrupted under any circumstances For measurements where ground loops that may be present could impair the measuring result use the Tek amplifier and the trigger attachment 7 2 Control Voltages Voltage Measuring Point Range 5 V D915 X15 4 4 8V to 5 2V 15 V D915 X15 5 13 5V to 16 5V 15 V D915 X15 7 13 5V to 16 5V 24 V For Filament D9...

Страница 5: ...ement 7 5 1 1 kVp meter Switch the unit ON Insert the kV sensor into collimator channel and connect the cable to the meter Open collimator flaps such that the sensor is well covered by the field Set the kVp meter at 12pulse and 55 85kV range Set exposure parameters as 60kV 20mAs Release an exposure The radiation LED will light up during exposure The meter will read 57 63kV Repeat with meter settin...

Страница 6: ...by setting the meter in mA mode Set the exposure parameters as 60kV 50mAs Release an exposure During the exposure the meter will read 23 27mA 7 5 2 2 Electrical Connect oscilloscope at D915 TP JR Set exposure parameters as 60kV 2 5mAs Release an exposure The recorded waveform will read 1 58 1 62V The exposure time will be 76 84mS Lower mA indicates error in mAsoll mAsensing mA regulator circuit Hi...

Страница 7: ...Unit ON After the initialisation the default data 60 kV and 10 mAs are displayed at first time switch ON or last stored kV mAs value 7 6 3 1 Standby mode On D920 the following LEDs are illuminated V3 Main line voltage 240 V V9 Presence of 240V V12 Presence of 24 V for relay V15 Presence of 12 V for collimator V25 Presence of 24V for filament circuit 7 6 3 2 Preparation ON On half press of exposure...

Страница 8: ...ediate circuit voltage Depending on the supply voltage a value between 250 to 350Vdc must be measured with the digital multimeter across the parallel capacitors C1 C2 C6 C7 and C9 if present in inverter module 7 8 Checking setting the maximum main inverter frequency Turn the Unit OFF Place the ST link on D915 so as to short the two terminals Make the unit ON The unit enters SERVICE mode In the ser...

Страница 9: ...level on preheating step 7 10 Checking the high voltage kVsoll and kVist Connect oscilloscope to D915 TP KVS D915 TP KV Turn the unit ON Trigger an exposure with the default values Observe the voltage on C R O with the scale corresponding to 1V 20kV for KV and 1V 30KV for 30 KVS 7 11 Setting the Maximum filament frequency Turn the Unit OFF Remove X11 D915 Connect oscilloscope to D915 TP CAL Turn t...

Страница 10: ...Link on the D920 PCB 7 15 Adjusting the mAs Turn the Unit OFF Remove the Shorting Link mAs on D920 PCB banana sockets Connect mAs meter to mAs mAs on D920 PCB Turn the unit ON Trigger the exposures for default kv mAs settings Observe the mAs meter reading and if it is not within the tolerance specified in the Technical Specifications of set value adjust the P1 on D915 card 7 16 Switching the Colli...

Страница 11: ...aken 1 The display on the D932 will be as below XXX XXX XXX XXX corresponds to the total number of exposures taken on the unit 7 17 3 Program 3 To check the type of codes that occurred in the unit maximum 20 1 Press the switch DL serv on the D936 once The display will be AA XX AA diplays the serial number of the exposures that have occured in chronological order max 20 XX displays the correspondin...

Страница 12: ...splay the maimum KV mAS possible with the Unit 100 200 100 indicates the maximum KV available 200 indicates the maximum mAS available on the Unit In case the display values do not vary in standby by using the key PCB then Enter this program and vary the KV mAs displayed using the Key PCB D936 Then switch the the Unit O FF and enter standby mode the unit should function normally 7 17 7 Program 7 Ad...

Страница 13: ...log port 2 should be greater than 1 75A i e 1 75V Iheiz ratio 1V 1A 04 Iheiz Istby The maximum value of Standby current permitted is 2 2 A 05 kVist 0 kVist is read by the µC through Analog port 7 During Standby the value of kVist read should be Zero kVist ratio 1 V 20kV 06 JR 0 JR is read by the µC through Analog port 1 During Standby the value of JR read should be Zero JR ratio 1 V 20mA 33 Main I...

Страница 14: ...TD All rights reserved For internal use only 7 13 21 I Iheiz This CODE is displayed if the filament current exceeds 4 1V in prepation state 22 Maximum Preparation Time This CODE is displayed if First step is pressed for more than 15 sec 7 19 Specific CODE Handling 7 19 1Unit not turning ON ...

Страница 15: ...Service Manual Service Instructions Siemens Ltd Med India Version 6 0 Copyright SIEMENS LTD All rights reserved For internal use only 7 14 ...

Страница 16: ...Service Manual Service Instructions Siemens Ltd Med India Version 6 0 Copyright SIEMENS LTD All rights reserved For internal use only 7 15 7 19 2 No Radiography ...

Страница 17: ...Service Manual Service Instructions Siemens Ltd Med India Version 6 0 Copyright SIEMENS LTD All rights reserved For internal use only 7 16 ...

Страница 18: ...Service Manual Service Instructions Siemens Ltd Med India Version 6 0 Copyright SIEMENS LTD All rights reserved For internal use only 7 17 7 19 3 No Standby ...

Страница 19: ...emens Ltd Med India Version 6 0 Copyright SIEMENS LTD All rights reserved For internal use only 7 18 7 19 4Initialisation CODEs CODE 90 EPROM CHECKSUM FAILURE CODE 96 KV SOLL FAILURE CODE 97 mA FAILURE CODE 99 LAST RESET BY WATCH DOG TIMER ...

Страница 20: ...Service Manual Service Instructions Siemens Ltd Med India Version 6 0 Copyright SIEMENS LTD All rights reserved For internal use only 7 19 ...

Страница 21: ...Service Manual Service Instructions Siemens Ltd Med India Version 6 0 Copyright SIEMENS LTD All rights reserved For internal use only 7 20 7 19 5 Standby CODEs 7 19 5 1 CODE 02 15 V Supply CODE ...

Страница 22: ...Service Manual Service Instructions Siemens Ltd Med India Version 6 0 Copyright SIEMENS LTD All rights reserved For internal use only 7 21 7 19 5 2 CODE 03 Iheiz Istby ...

Страница 23: ...Service Manual Service Instructions Siemens Ltd Med India Version 6 0 Copyright SIEMENS LTD All rights reserved For internal use only 7 22 ...

Страница 24: ...Service Manual Service Instructions Siemens Ltd Med India Version 6 0 Copyright SIEMENS LTD All rights reserved For internal use only 7 23 7 19 5 3 CODE 04 Iheiz Istby ...

Страница 25: ...Service Manual Service Instructions Siemens Ltd Med India Version 6 0 Copyright SIEMENS LTD All rights reserved For internal use only 7 24 7 19 5 4 CODE 05 kVist 0 ...

Страница 26: ...Service Manual Service Instructions Siemens Ltd Med India Version 6 0 Copyright SIEMENS LTD All rights reserved For internal use only 7 25 7 19 5 5 CODE 06 JR 0 ...

Страница 27: ...Service Manual Service Instructions Siemens Ltd Med India Version 6 0 Copyright SIEMENS LTD All rights reserved For internal use only 7 26 7 19 5 6 CODE 33 Main Inverter Short Circuit ...

Страница 28: ...ervice Manual Service Instructions Siemens Ltd Med India Version 6 0 Copyright SIEMENS LTD All rights reserved For internal use only 7 27 7 19 6EXPOSURE CODES 7 19 6 1 CODE 11 Main Inverter Short Circuit ...

Страница 29: ...Service Manual Service Instructions Siemens Ltd Med India Version 6 0 Copyright SIEMENS LTD All rights reserved For internal use only 7 28 7 19 6 2 CODE 12 kVist kVmax ...

Страница 30: ...Service Manual Service Instructions Siemens Ltd Med India Version 6 0 Copyright SIEMENS LTD All rights reserved For internal use only 7 29 7 19 6 3 CODE 13 Iheiz Imax OR JR Jrmax ...

Страница 31: ...Service Manual Service Instructions Siemens Ltd Med India Version 6 0 Copyright SIEMENS LTD All rights reserved For internal use only 7 30 7 19 6 4 CODE 14 kVist kVsoll ...

Страница 32: ...Service Manual Service Instructions Siemens Ltd Med India Version 6 0 Copyright SIEMENS LTD All rights reserved For internal use only 7 31 7 19 6 5 CODE 15 JR JRS ...

Страница 33: ...Service Manual Service Instructions Siemens Ltd Med India Version 6 0 Copyright SIEMENS LTD All rights reserved For internal use only 7 32 7 19 6 6 CODE 17 Exposure terminated by Backup Timer ...

Страница 34: ...Service Manual Service Instructions Siemens Ltd Med India Version 6 0 Copyright SIEMENS LTD All rights reserved For internal use only 7 33 7 19 6 7 CODE 18 Premature termination of Exposure ...

Страница 35: ...Service Manual Service Instructions Siemens Ltd Med India Version 6 0 Copyright SIEMENS LTD All rights reserved For internal use only 7 34 7 19 6 8 CODE 21 Iheiz Iheiz maximum ...

Страница 36: ...Service Manual Service Instructions Siemens Ltd Med India Version 6 0 Copyright SIEMENS LTD All rights reserved For internal use only 7 35 7 19 6 9 CODE 22 Maximum Preparation Time ...

Страница 37: ...Service Manual Service Instructions Siemens Ltd Med India Version 6 0 Copyright SIEMENS LTD All rights reserved For internal use only 7 36 7 20 PCB Layout Drawings 7 20 1Master Card D915 ...

Страница 38: ...Service Manual Service Instructions Siemens Ltd Med India Version 6 0 Copyright SIEMENS LTD All rights reserved For internal use only 7 37 7 20 2 Interface PCB D920 ...

Страница 39: ...Service Manual Service Instructions Siemens Ltd Med India Version 6 0 Copyright SIEMENS LTD All rights reserved For internal use only 7 38 7 20 3 Inverter Card D61 ...

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