Hologic QDR 4500 Technical Manual page 7

Analog to Digital Converter Board......................................................................................................................5-26
POWER MODULE FRUS.......................................................................................................................................5-27
28 Volt Power Supply .........................................................................................................................................5-27
±15 Volt Power Supply .......................................................................................................................................5-28
Line Filter ............................................................................................................................................................5-29
Isolation Transformer ..........................................................................................................................................5-29
Power Controller Board.......................................................................................................................................5-29
OPERATOR'S CONSOLE FRUS ...........................................................................................................................5-30
APERTURE ASSEMBLY FRUS............................................................................................................................5-32
Aperture Stepper Motor.......................................................................................................................................5-32
Aperture Motor PCB ...........................................................................................................................................5-33
Aperture Position Belt .........................................................................................................................................5-33
Rotary Potentiometer...........................................................................................................................................5-34
DRUM ASSEMBLY FRUS ....................................................................................................................................5-34
Drum Encoder PCB.............................................................................................................................................5-34
Drum Belts ..........................................................................................................................................................5-35
Stepper Motor Assembly .....................................................................................................................................5-36
Drum Bearings.....................................................................................................................................................5-37
REPLACING EMI CABLES...................................................................................................................................5-39
FRU LISTS ..............................................................................................................................................................5-41
Figure 5-1. Electronics Tray FRUs......................................................................................................................5-41
Figure 5-2. Control Panel and Table Y FRUs .....................................................................................................5-41
Figure 5-3. Left Side Table Y FRUs....................................................................................................................5-41
Figure 5-4. Table X FRUs ...................................................................................................................................5-42
Figure 5-5. Table Z FRUs....................................................................................................................................5-42
Figure 5-6. Installing the Rotary String Encoder.................................................................................................5-42
Figure 5-7 C-Arm R FRUs (Outside View).........................................................................................................5-42
Figure 5-8. C-Arm R FRUs (Inside View) ..........................................................................................................5-43
Figure 5-9. Lower C-Arm FRUs..........................................................................................................................5-43
Figure 5-11. Upper C-Arm FRUs ........................................................................................................................5-43
Figure 5-12. Detector Assembly Mounting .........................................................................................................5-43
Figure 5-13. Laser Assembly...............................................................................................................................5-44
Figure 5-14. Rear C-Arm FRUs ..........................................................................................................................5-44
Figure 5-15. Power Module FRUs ......................................................................................................................5-44
Figure 5-16. Power Control Panel FRUs.............................................................................................................5-44
Figure 5-17. Operator's Console Assemblies.......................................................................................................5-45
Figure 5-18. Computer Assemblies .....................................................................................................................5-46
Figure 5-19. Aperture Assembly FRUs (QDR 4500A and SL) ...........................................................................5-46
Figure 5-22. Front Drum Assembly FRUs...........................................................................................................5-46
Figure 5-23. Drum Outer Bearings ......................................................................................................................5-47
Figure 5-24. Drum Inner Bearings.......................................................................................................................5-47
Cables ..................................................................................................................................................................5-47
Miscellaneous......................................................................................................................................................5-47
Mobile .................................................................................................................................................................5-48
Special Tools .......................................................................................................................................................5-48
SECTION 6 FAULT ISOLATION.................................................................................................6-1
BEFORE STARTING................................................................................................................................................6-1
SOFTWARE CONFIGURATION.............................................................................................................................6-1
HARDWARE CONFIGURATION ...........................................................................................................................6-1
POWER PROBLEMS ...............................................................................................................................................6-1
MOTION PROBLEMS..............................................................................................................................................6-2
CONTROL PANEL PROBLEMS .............................................................................................................................6-5
DISPLAY PROBLEMS.............................................................................................................................................6-5
Vertical Stripe........................................................................................................................................................6-6
Horizontal Stripe ...................................................................................................................................................6-6
Noise......................................................................................................................................................................6-6
No Display.............................................................................................................................................................6-7
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