E718 - Canon CLC5000 Service Manual

4.1.37 E718

Connector, Wiring
1) Are the connection and the wiring of the following connector nor-
NO:
Projector controller PCB
2) Set the meter to the 12VDC range, and measure the voltage be-
YES: Go to step 8.
Connector, Wiring
3) Are the connection and wiring between the following connectors
NO:
DC power supply
4) Set the meter to the 300VAC range, and measure the voltage be-
YES: Replace the DC power supply.
Overcurrent
5) Press the circuit breaker. Is it reset?
YES: Be sure to find out the cause of the overcurrent.
Reader unit controller PCB
6) Set the meter to the 30VDC range, and measure the voltage be-
NO:
SSR1
Projector controller PCB
7) As in step 6, measure the voltage between J102-1 (+; 5 V) and J102-
YES: Replace SSR1.
NO:
COPYRIGHT © 2001 CANON INC.
CHAPTER 5 TROUBLESHOOTING IMAGE FAULTS/MALFUNCTIONS
mal?
Projector Controller PCB: J103
Re-connect it.
tween J107-1 (+; 5 V) and J107-2 (–; GND) on the projector con-
troller PCB. Does it change from about 0 V to about 5 V when pro-
jector mode starts?
normal?
J107 on the projector controller PC and J203 on the DC power sup-
ply
J102 on the projector controller PCB and SSR1
Re-connect it.
tween J201-1 and -3 of the DC power supply. Is the rated AC volt-
age present when projector mode starts?
tween J103-5 (+; 5 V) and J103-6 (–; POWON
controller PCB. Does it change from about 0 V to about 5 V when
projector mode starts?
Replace the reader unit controller PCB.
2 (–; POWON ). Does it change from about 0 V to about 5 V?
*
Replace the projector controller PCB.
2000 2000 2000 2000 CANON CLC5000 REV.0 JAN. 2001
) on the projector
*
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