Siemens MULTIMOBIL 2.5 - Table of Contents

Service Manual
Service Instructions
Siemens Ltd. Med India Version 6.0
Copyright  SIEMENS LTD. All rights reserved. For internal use only
7-2
INDEX
7 SERVICE .........................................................................................................................7-3
7.1 TROUBLESHOOTING ..........................................................................................................7-3
7.1.1 Tools and measuring instruments required...................................................................7-3
7.2 CONTROL VOLTAGES .......................................................................................................7-3
7.3 SIGNALS........................................................................................................................7-3
7.4 HT CHECK .....................................................................................................................7-4
7.5 CALIBRATION..................................................................................................................7-4
7.5.1 kVp Measurement.....................................................................................................7-4
7.5.2 mA / mAs Measurement ............................................................................................7-5
7.6 TROUBLESHOOTING ..........................................................................................................7-5
7.6.1 Checking the line voltage...........................................................................................7-5
7.6.2 Checking the fuses ...................................................................................................7-6
7.6.3 Checking the LEDs on D920......................................................................................7-6
7.7 CHECKING THE CONTROL VOLTAGES ....................................................................................7-7
7.7.1 Checking the Intermediate circuit voltage....................................................................7-7
7.8 CHECKING & SETTING THE MAXIMUM MAIN INVERTER FREQUENCY ................................................7-7
7.9 FILAMENT CURRENT MEASUREMENT ......................................................................................7-8
7.10 CHECKING THE HIGH VOLTAGE KVSOLL AND KVIST ..................................................................7-8
7.11 SETTING THE 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 SWITCHING THE 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
7.17.3 Program 3.......................................................................................................... 7-10
7.17.4 Program 4.......................................................................................................... 7-10
7.17.5 Program 5.......................................................................................................... 7-10
7.17.6 Program 6.......................................................................................................... 7-11
7.17.7 Program 7.......................................................................................................... 7-11
7.18 CODES ...................................................................................................................... 7-12
7.19 SPECIFIC CODE HANDLING.............................................................................................. 7-13
7.19.1 Unit not turning ON.............................................................................................. 7-13
7.19.2 No Radiography................................................................................................... 7-15
7.19.3 No Standby........................................................................................................ 7-17
7.19.4 Initialisation CODEs............................................................................................ 7-18
7.19.5 Standby CODEs ................................................................................................. 7-20
7.19.6 EXPOSURE CODES........................................................................................... 7-27
7.20 PCB LAYOUT DRAWINGS ............................................................................................... 7-36
7.20.1 Master Card D915 ............................................................................................... 7-36
7.20.2 Interface PCB D920 ............................................................................................ 7-37
7.20.3 Inverter Card D61................................................................................................ 7-38