E100 - Canon 1000 Service Manual

24

E100

a. E100=xx01
Cause Step
Laser shutter
DC power supply
PCB 1 (lower)
Video controller
PCB, Laser
driver PCB
Laser exposure
system
BD unit
BD unit, Laser
driver PCB
You can find out whether the cause of 'E100' has been removed or not by executing 'EPC'
under 'FUNC'.
COPYRIGHT © 2001 CANON INC.
Checks
1 Is the operation of the laser shutter
normal?
2 Is power present at J2101 on the DC
controller PCB?
J2101-1 (+) — J2101-4 (–): 5V
J2101-8 (+) — J2101-9 (–): –8V
J2101-7 (+) — J2101-8 (–): 8V
3 Is there a fault in the connection
between the video controller PCB
and the laser driver PCB of the color
for which 'E100' is indicated?
Y (detail code: 0101) :J2106 — J1301Y
M (detail code: 0201) :J2107 — J1301M
C (detail code: 0301) :J2108 — J1301C
Bk (detail code: 0401) :J2109 — J1301K
4 Is the laser power normal?
5 Clean the light-receiving face of the
BD unit. Is the problem corrected?
CANON CLC1000/1000S/3100 REV.2 MAY 2001 PRINTED IN JAPAN (IMPRIME AU JAPON)
7. TROUBLESHOOTING IMAGE FAULTS/MALFUNCTIONS
Yes/No
NO
NO
YES
NO
YES
NO
Action
Replace the faulty part.
Check the wiring; if
normal, replace the DC
power supply PCB 1
(lower).
Re-connect it.
Adjust it. If output is
absent, replace the laser
unit.
End.
Replace the following
parts in the order
indicated:
• BD unit
• Video controller PCB
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