The Lifter Fails To Move Up - Canon iR105 Service Manual

4.1.74 The lifter fails to move up

Gear lever
1) Remove the deck, and move the lifter by hand. Does it move
NO:
Spring lever
2) Push down the pickup roller releasing lever with your finger. Does
NO:
Deck open/closed sensor
3) Is the voltage of the following connectors on the DC controller PCB
NO:
Deck limit sensor
4) Is the voltage of the following connectors on the DC controller
NO:
Lifter motor, DC controller PCB
5) Turn on the main power switch and the control panel power switch.
YES: Replace the deck lifter motor.
NO:
COPYRIGHT© 2001 CANON INC.
smoothly?
Remove the pickup assembly, and check the gear and the lever.
the pickup roller move down?
Remove the pickup assembly, and check the spring and the lever.
about 5 V when the deck is slid in?
right deck (PS25): J511-B5
left deck (PS33):
Check the sensor flag and the wiring; if normal, replace the sensor.
about 0 V?
right deck (PS24): J511-B8
left deck (PS34):
Check the sensor flag and the wiring; if normal, replace the sensor.
Set the meter range to 30 VDC. Connect the - probe to ground and
+ probe to the connector of the DC controller PCB. Does the volt-
age change from about 0 V to 24 V when the deck is slid in?
right deck (M13): J514-A4
left deck (M14): J514-B1
Replace the DC controller PCB.
2000 2000 2000 2000
CHAPTER 6 TROUBLESHOOTING
J518-B2
J518-B5
CANON iR105 REV.0 JULY 2001
6-127