Dc Power Is Absent - Canon iR1600 Service Manual

CHAPTER 13 TROUBLESHOOTING

3.4.2 DC power is absent.

AC power supply
1) Is AC voltage present?
NO:
Power supply PCB
2) Is the output voltage of each power supply PCB correct?
Connector
CN-11, 13
CN-15, 17, 19, 20
CN2-12, 13
CN1-1
CN1-7
CN1-6
CN3-1, 2
CN2-18 to CN2-27
YES: Check the wiring from each power supply PCB to each load.
NO:
13-38
See 3.4.1 "AC power is absent."
CN2-8, 9
If a fault is found, replace the power supply PCB.
COPYRIGHT© 2002 CANON INC.
Output voltage
3SV1
3SV2
5VS
12VS
3VR
5VR
24VR1
24VR2
2000 CANON iR1600/iR2000 REV.1 JAN. 2002