Canon 1130 Service Manual page 720

48 The cassette lifter fails to move up.
Cause
Cassette
Latch (cassette)
Spring, lever
Lifter sensor
(PS19, PS22,
PS23)
Cassette 1 lifter
motor (M11,
DM12), cassette 2
lifter motor (M12,
DM13), cassette 3
lifter motor (M13)
M11, DM12,
M12, DM13, M13
DC driver PCB,
CPU PCB
COPYRIGHT © 2002 CANON INC.
Step
1 Slide out the cassette, and move up
the holding plate inside the cassette
by hand. Does it move smoothly?
2 Is the movement of the latch
assembly of the grip on the cassette
normal?
3 Push down the pickup roller
releasing lever with your finger.
Does the pickup roller move down?
4 Is the lifter sensor normal?
5 Turn off the power switch, and
disconnect the connectors J1020,
J1019, and J1018 on the DC driver
PCB. Set the meter range to
x100Ω, and measure the resistance
between the following terminals; is
it about 60Ω?
M11: J1020-A1, -2A
M12, DM12: J1019-B4, -5B
M13, DM13: J1018-B4, -5B
6 Connect the connectors, and turn
on the power switch. Set the meter
range to 30 VDC. Does the voltage
between the following terminals
change from about 0 to about 24 V
when the cassette is slid in?
M11: J1020-A1 (+), -A2
M12, DM12: J1019-B4 (+), -B5
M13, DM13: J1018-B4 (+), -B5
CANON CLC1100/1130/1150/1160/1180 REV.2 FEB. 2002 PRINTED IN JAPAN (IMPRIME AU JAPON)
CHAPTER 13 TROUBLESHOOTING
Checks Yes/No Action
NO Check the inside of the
cassette for foreign
matter.
NO Mount it properly.
NO Remove the pickup
assembly, and check the
spring and the lever
NO Check the lever and the
wiring; if normal,
replace the sensor.
NO Check the wiring from
the connector to the
motor; if normal, replace
the motor.
YES Remove the pickup
assembly, and check the
gear; if normal, replace
the motor.
NO Replace the DC driver
PCB or the CPU PCB.
(After replacement,
execute the work under
II. H. 10. or II. H. 1.)
13-137