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TROUBLESHOOTING & REPAIR
FOR REPLACEMENT OF SWITCH ASSEMBLY
FIGURE F.77 - FILTER CAPACITOR VOLTAGE
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400VDC
VOLTMETER
400VDC
VOLTMETER
+ | 9L | R 9 |
| 12L |
|
+ | 9M | R 10 |
| 12M |
|
MAKE SURE FILTER CAPACITORS ARE DISCHARGED
1.Construct a 115VAC pretest power supply as per Figure F.78 using the following:
Switch (SPST) Fuse (5 amp max) P70 adapter
ALL AC SUPPLIES MUST BE ELECTRICAL- LY ISOLATED (isolation transformers). THE PRINTED CIRCUIT BOARDS WILL BE DAMAGED IF THE AC SUPPLIES ARE NOT ISOLATED.
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