CHAPTER 6 TROUBLESHOOTING
6-124
COPYRIGHT© 2001 CANON INC.
2000 2000 2000 2000
CANON iR105 REV.0 JULY 2001
4.1.72 The DC power supply fails to operate. 1
Control pane power switch-related items
1) Is the main power lamp ON?
YES: See “The DC power supply fails to operate. 2”
AC power supply
2) Is the rated voltage present between J28-1 and J28-5 and between
J28-2 and J28-7 on the DC power supply PCB?
NO:
See “AC power is absent.”
Wiring
3) Is the cable of the connector J1701-4 (overcurrent detection signal
1) on the relay PCB normal?
NO:
Correct it.
Fuse (FU101)
4) Is the fuse (FU101) on the DC power supply PCB blown?
YES: Remove the cause, and replace the fuse.
Wiring, DC load, DC power supply PCB
5) Turn off the main power switch. When the main power switch is
turned on in about 3 min, is the voltage between the following ter-
minals of the relay PCB normal?
However, the output voltages in the table are based on a tolerance
in AC input of ±10%.
YES: Turn off the power switch, and disconnect the following connectors
of the relay PCB:
• J1711
• J1712
• J1714
• J1716
• J1718
Connect one of the disconnected connectors, and turn on the power
switch. Repeat this for all connectors to find the connector for
which the protective circuit goes ON. Then, check the wiring and
DC loads connected to the connector.
NO:
Replace the DC power supply PCB.
Connector
Pin No.
Output voltage
Remarks
J1704
1
12V
+7%, -10%
3
3.3V
±5%
J1705
1
+8V
±10%
3
-8V
±10%
5
15V
±10%
J1706
1
5V
±4%
Summary of Contents for iR105 Series
Page 547: ...COPYRIGHT 2001 CANON INC 2000 2000 2000 2000 CANON iR105 REV 0 JULY 2001 APPENDIX ...
Page 561: ...Service Mode COPYRIGHT 2001 CANON INC 2000 CANON iR105 REV 0 JULY 2001 ...
Page 691: ...Error Code COPYRIGHT 2001 CANON INC 2000 CANON iR105 REV 0 JULY 2001 ...
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Page 1012: ...C 10 COPYRIGHT C 2001 CANON INC STANDARD FASTENERS REV 0 FEB 1992 ...
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