Canon FINISHER - D1 Service Manual page 167

2. E505 (check sum)
Cause
Finisher controller PCB
3. E510 (inlet motor M1)
Cause
Switching regulator
Wiring
Front cover switch
(MSW1)
Fuse PCB
COPYRIGHT © 1999 CANON INC.
Step Checks
1 Turn off and then on the
copier's power switch. Is the
problem corrected?
2 Turn off the power, and shift
bits 1, 4, 5, and 6 of SW103
on the finisher controller
PCB to ON. Turn on the
power, and press SW104 on
the finisher controller PCB.
Turn off the power, and shift
all bits of SW103 to OFF.
Turn on the power. Is the
problem corrected?
Step Checks
1 Is LED103 on the finisher
con troller PCB at time of
power-on?
2 Is the voltage between J85-3,
4 (+) and J85-5, 6 (-) on the
switching regulator 24 V?
3 Is the voltage between J711-
7, -8 (+) and J711-5, -6 (-) on
the fuse PCB 24 V?
4 Disconnect J715 of the fuse
PCB. Check the electrical
continuity between J715-1
and J715-3 on the harness
side. Is there electrical
continuity when the front
cover is closed and no
electrical continuity when
the cover is closed?
5 Is the voltage of J714-1(+)
on the fuse PCB 24 V?
CANON FINISHER - D1 REV.0 FEB. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
CHAPTER 5 TROUBLESHOOTING
Yes/No
Yes End.
Yes End.
No Replace the finisher
controller PCB.
Yes/No
No Go to step 2.
Yes Go to step 7.
No Replace the switching
regulator.
No Correct the wiring
between J85 and J711.
No Check to make sure that
the actuator of the front
cover is pushing the
switch. If so, replace the
switch, or correct the
wiring between the PCB
and the switch.
No Replace the fuse PCB.
Action
Action
5-31