Canon CLC 1120 Service Manual page 643

CHAPTER 13 TROUBLESHOOTING
16 E062
Cause
SSR2
DC driver PC,
CPU PCB
17 E067
Cause
Connector (J421)
DC fuse PCB
Separation
charging assembly
External/internal
static eliminator
assembly
HVT-AC PCB
DC driver PCB,
CPU PCB
13-116
COPYRIGHT © 1999 CANON INC.
Step Checks
1 Replace SSR2. Is the problem
corrected?
Step Checks
1 Is the connector J421 on the HVT-
AC PCB disconnected?
2 Is 24 V present between J420-1 and
-2 on the HVT-AC PCB?
3 Is the separation charging assembly
showing signs of leakage?
4 Is the external/internal charging
assembly showing signs of
leakage?
5 Replace the HVT-AC PCB. Is the
problem corrected?
YES
NO
YES
NO
YES
YES
YES
NO
CANON CLC1120/1130/1150 REV.0 MAR. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
Yes/No Action
End.
Replace the DC driver
PCB or the CPU PCB.
Yes/No Action
Connect the connector
properly.
Replace the DC fuse
PCB.
Correct the area of
leakage; or, replace the
charging assembly.
Correct the area of
leakage; or, replace the
static eliminator.
End.
Replace the DC driver
PCB or the CPU PCB.