Canon 1130 Service Manual page 712

41 E803
Cause
DC driver PCB,
CPU PCB
Transfer unit lever
switch (SW3),
Left front cover
switch (SW4),
Delivery cover
switch (SW5)
DC fuse PCB
DC power cut
relay (RL3)
DC power supply
PCB
42 E804
Cause
Fan
DC driver PCB,
CPU PCB
COPYRIGHT © 2002 CANON INC.
Step
1 Is LED1 on the DC driver PCB on?
(It must, as long as the PCB is
supplied with 24 V.)
2 Are the transfer unit lever switch,
left front cover
cover switch normal?
3 Is there electrical continuity
between connectors J930-1 and
J934-6 on the DC fuse PCB?
4 Is 24 V present between J1703-2
(+) and J1703-6 (-) on the DC
power supply PCB?
Step
1 Replace the fan indicated by the
detail code. Is the problem
corrected?
CANON CLC1100/1130/1150/1160/1180 REV.2 FEB. 2002 PRINTED IN JAPAN (IMPRIME AU JAPON)
CHAPTER 13 TROUBLESHOOTING
Checks
switch, and delivery
Checks
Yes/No Action
YES Replace the DC driver
PCB or the CPU PCB.
(After replacement,
execute work under II.
H. 10. or II. H. 1.)
NO Close the covers and
levers properly. Then,
check the switches; if
faulty, replace them.
NO Replace the DC fuse
PCB.
YES Check the wiring
between the DC power
supply PCB and the DC
fuse PCB; if normal,
replace the DC power
cut relay.
NO Check the AC power
line; if normal, replace
the DC power supply
PCB.
Yes/No Action
YES End.
NO Check the wiring from
the fan to the DC driver
PCB or the CPU PCB; if
normal, replace the DC
driver PCB or the CPU
PCB.
(After replacement,
execute the work under
II. H. 10. or II. H. 1.)
13-129