Canon CP660 Service Manual page 342

CHAPTER 10 TROUBLESHOOTING
2 Cassette Pick-Up Assembly
Cause Step
Cassette pick- 1
up roller, feed-
ing roller 1
Drive gear 2
Pick-up paper 3
sensor (PS17)
Pick-up paper 4
sensor (PS17)
Connector 5
(pick-up motor
(M5) drive)
Pick-up motor 6
(M5)
Feeding roller 7
2
Connector 8
(feeding clutch
CL2 drive sup-
ply line)
Feeding clutch 9
(CL2)
Pick-up PCB 10
DC controller
PCB
10-60
COPYRIGHT © 1999 CANON INC.
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Checks
Is the cassette pick-up roller or the
feeding roller 1 worn/deformed?
Remove the pick-up assembly, and
check the drive gears and springs. Is
there any damaged/worn part? Is
any spring displaced?
Is the pick-up paper sensor lever or
spring damaged/deformed?
Are they positioned correctly?
Replace the pick-up paper sensor. Is
the problem corrected?
Are the connectors J210 on the DC
controller PCB and connectors
J1201 and J1202 on the pick-up
PCB connected securely?
Replace the pick-up motor. Is the
problem corrected?
Is the feeding roller 2 worn,
deformed, or soiled?
Is the connector J1204 of the feed-
ing clutch connected securely?
Disconnect the connector J1204 of
the feeding clutch, and measure the
resistance between the connectors
J1204-2 (+24 UH) and J1204-1
(FEDCLD*) on the harness side. Is it
about 210 Ω?
Replace the pick-up PCB. Is the
problem corrected?
Yes/No
YES
YES
YES
YES
NO
YES
YES
NO
NO
YES
NO
CANON 660/2100 REV.0 FEB. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
Action
Replace the parts. Be
sure to replace both
separation roller and
feeding roller 1 at the
same time.
Replace the dam-
aged/worn part.
Position the spring cor-
rectly.
Replace the dam-
aged/worn part.
Position the spring cor-
rectly.
Replace the sensor.
Connect the connec-
tors securely.
Replace the motor.
If worn or deformed,
replace the roller. If
soiled, clean it.
Connect the connector.
Replace the feeding
clutch.
Replace the pick-up
PCB.
Replace the DC con-
troller PCB.