Canon iR5000 Service Manual page 654

CHAPTER 4 TROUBLESHOOTING IMAGE FAULTS/MALFUNCTIONS
4.2.4 The lifter fails to move up (pickup from front deck)
Gear, Lever
1) Remove the deck, and move up the lifter by hand. Does it move
smoothly?
NO:
Spring, Lever
2) Push up the pickup roller releasing lever with a finger. Does the
pickup roller move down?
NO:
Right deck open/closed sensor (PS5), Left deck open/closed sensor (PS9)
3) When the deck is inserted, is the voltage of the following connectors
on the DC controller PCB about 5 V?
NO:
Right deck limit sensor (PS8), Left deck limit sensor (PS12)
4) Is the voltage of the following connectors on the DC controller PCB
about 0 V?
NO:
Right deck lifter motor (M5), Left deck lifter motor (M4), DC controller PCB
5) Turn on the main power switch, and set the meter range to 30 VDC;
then, connect the - probe of the meter to GND and the + probe to
the following connectors of the DC controller PCB. Does the voltage
change from about 0 V to 24 V when the deck is inserted?
YES: Check the wiring and the motor drive PCB; if normal, replace the
NO:
4.2.5 The lifter fails to move up (pickup from cassette)
Cassette size detecting switch, Service mode
1) Is the size of the cassette indicated on the control panel?
NO:
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Check the gear and the lever.
Remove the pickup assembly, and check the springs and the lever.
Sensor
Right deck open/closed sensor
Left deck open/closed sensor
Check the sensor flag and the wiring; if normal, replace the sensor.
Sensor
Right deck limit sensor
Left deck limit sensor
Check the sensor flag and the wiring; if normal, replace the sensor.
Motor
Right deck lifter motor
Left deck lifter motor
motor.
Replace the controller PCB.
Check the cassette size detecting switch. Or, check the cassette pa-
per size setting in service mode.
2000 2000 2000 2000 CANON iR5000/iR6000 REV.0 JULY 2000
+
J112-B2
J115-A14
+
J112-B8
J115-A2
+ -
J105-13 GND
J105-12 GND
-
J112-B1
J115-A13
-
J112-B7
J115-A1
4-41 T