Canon 1130 Service Manual page 700

25 E100
Cause
Laser shutter
DC power supply
PCB
Connector,
Wiring
Laser exposure
system
BD unit
Laser driver PCB
Image processor
main PCB
COPYRIGHT © 2002 CANON INC.
Step
1 Is the laser shutter operation
normal?
2 Is power present at J1200 on the
laser controller PCB?
Voltage
+5V J1200-2
+8.8V J1200-3
-8V J1200-5
+24V J1200-7
3 Is there a fault between the
following connectors:
Laser controller PCB
J1201, J1202, J1203, J1207
Laser Driver/Motherboard
J1301, J1302, J1303
BD PCB
J1210
4 Is the laser power normal? (See the
instructions on how to adjust the
laser power.)
5 Clean the light-receiving face of
the BD unit. Is the problem
corrected?
CANON CLC1100/1130/1150/1160/1180 REV.2 FEB. 2002 PRINTED IN JAPAN (IMPRIME AU JAPON)
CHAPTER 13 TROUBLESHOOTING
Checks
(+) (-)
J1200-1
J1200-4
J1200-4
J1200-6
Yes/No Action
NO Replace any faulty part
NO Check the wiring and
the DC fuse PCB; if
normal, replace the DC
power supply PCB.
YES Connect them properly.
NO Adjust the laser power.
If output is absent,
replace the laser unit or
the laser driver PCB.
YES End.
NO Try replacing the
following:
• BD unit
(When replacimg, see
II. H. 6.)
• laser driver PCB
• image processor main
PCB
13-121