The Cassette Heater Fails To Operate - Canon CLC5000 Service Manual

4.1.59 The cassette heater fails to operate.

Environment sensor
1) Is there a significant discrepancy between the temperature/humid-
NO:
2) Make the following sections in service mode:
NO:
Cassette heater (H7, H8)
3) Turn OFF the power switch, and disconnect the connector J6. Set
NO:
Connector
Wiring
4) Are the connection and the wiring between the following connectors
NO:
YES: Check the wiring from the relay RL1 to the power saving switch
COPYRIGHT © 2001 CANON INC.
CHAPTER 5 TROUBLESHOOTING IMAGE FAULTS/MALFUNCTIONS
ity indicated under 'DISP > ANALOG' in service mode and the
readings of a thermometer/hygrometer in the room?
Replace the sensor.
DISP > SENSOR. Is the following indication '1'?
8 0 2 0 0 9
Go to step 4.
the meter to the ×1 range. Does the index of the meter swing when
the probe of the meter is connected to the terminals of the following
connectors?
Upper Cassette Heater
J6417-1 and J6417-3
Lower Cassette Heater
J6418-1 and J6418-3
Replace the cassette heater.
normal?
J61, J62, power-saving switch, J6, J37
Set the meter to the 12VDC range.
Re-connect them.
and AC driver PCB; if normal, replace AC driver PCB.
2000 2000 2000 2000
0 0 1 0 0 0 0 0
3rd bit
CANON CLC5000 REV.0 JAN. 2001
5-163