Canon CLC 1120 Service Manual page 653

CHAPTER 13 TROUBLESHOOTING
32 E620
Cause
Connector, wiring
IP-ED PCB
IP-MAIN PCB
33 E634
Cause
Lamp (projector)
Thermal switch
(projector)
13-126
COPYRIGHT © 1999 CANON INC.
Step Checks
1 Is the connection between J223/
J224 on the IP-ED PCB and J214/
J215 on the IP-MIAN PCB
normal?
Step Checks
1 Is the lamp of the projector
normal?
2 Is the thermal switch of the
projector on?
Yes/No
NO
YES
Yes/No
NO
YES
NO
CANON CLC1120/1130/1150 REV.0 MAR. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
Action
Connect the connectors
properly.
Try replacing the
following parts in turns:
· IP-ED PCB
· IP-MAIN PCB
Action
Replace the lamp.
Remove the cause of
activation, and replace
the thermal switch.
Try replacing the
following parts in turns:
· power supply PCB of
projector
· projector controller
PCB