The Lifter Fails To Move Up; Pedestal - Canon NP6330 Service Manual

3 The lifter fails to move up. (pedestal)
Cause Step
Deck 1
Lifter cable 2
Spring, lever 3
Pedestal motor 4
(M1)
Deck open 5
sensor (PS7)
Pedestal motor
6
(M1)

Pedestal

controller PCB
Deck lifter 7
position sensor
(PS5)
Deck lifter drive 8
clutch (CL4)
Pedestal 9
controller PCB
DC controller
PCB
COPYRIGHT © 1997 CANON INC.
Checks
Is the deck set properly?
Is the lifter cable routed properly?
Push down the pick-up roller
releasing lever with a finger. Does
the pick-up roller move down?
Does the pedestal motor rotate?
Set the meter to the 12VDC
range, and connect its probes to
J110-B7 (+) and J110-B6
(-; DEOP*) on the pedestal PCB.
Does the voltage change from 0 to
about 5 V when the deck is set?
Set the meter to the 100VDC
range, and connect its probes to
J109-1 (+; PEDMD) and J109-4 (-)
on the pedestal controller PCB.
Does the voltage change from 0 V
to 24 V when the deck is set?
Set the meter to the 30VDC
range, and connect its probes to
J110-A11 (+; DEL) and J110-A10
(-) on the pedestal controller
PCB.Is the voltage 0V when the
deck is pulled out, and about 5V
when the deck is set?
Set the meter to the 30VDC
range, and connect its probes to
J110-B11 (+) and J110-B12
(-; CL4D) on the pedestal
controller PCB. Does the voltage
change from 0 V to about 24 V
when the deck is set?
Replace the pedestal controller
PCB. Is the problem corrected?
CANON NP6330 REV.0 MAY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
CHAPTER 11 TROUBLESHOOTING
YES/N <None>Action
NO Re-set it.
NO Re-route it.
NO Remove the pick-up
assembly, and check the
spring and the lever.
YES Go to step 7.
NO Check the wiring from
the pedestal controller
PCB to the sensor; if
normal, replace the
sensor.
YES Check the wiring from
the pedestal controller
PCB to the motor; if nor-
mal, replace the motor.
NO Replace the pedestal
controller PCB.
YES Check the wiring from
the pedestal controller
PCB to the clutch; if nor-
mal, replace the sensor.
YES Check the wiring from
the pedestal controller
PCB to the clutch; if nor-
mal, replace the clutch.
YES End.
NO Replace the DC
controller PCB.
11-105