Canon 1130 Service Manual page 716

45 The original scanner fails to move forward/in reverse.
Cause
Cable (broken,
disconnected)
Travel path
Original scanner
home position
sensor (PS1)
Connector, wiring
DC power supply
PCB
Original scanner
motor driver PCB
Original scanner
motor (PM15)
COPYRIGHT © 2002 CANON INC.
Step
1 Is the drive cable routed properly?
2 Is the rail free of dirt? Does the
mirror base move smoothly when
pushed by hand?
3 Is the original scanner home
position sensor (PS1) normal?
4 Are the connection and wiring of
the following connectors normal?
Original Scanner Motor Driver
PCB: J601 (J380)
DC power supply PCB: J951
5 Set the meter range to 50 VD, and
measure the voltage between the
following terminals; is it normal?
J601-2 (+) and -1 (-): about 5 V
J601-4 (+) and -3 (-): about 8 V
J601-8 (+) and -7 (-): about 38 V
6 Replace the original scanner motor
driver PCB. Is the problem
corrected?
CANON CLC1100/1130/1150/1160/1180 REV.2 FEB. 2002 PRINTED IN JAPAN (IMPRIME AU JAPON)
CHAPTER 13 TROUBLESHOOTING
Checks Yes/No Action
NO Route the cable
properly.
NO Check the surface of the
rail for dirt, foreign
matter, or object in the
way of the scanner; as
necessary, clean,
lubricate, or repair.
Reference:
If the surface of the rail
is soiled, clean it with
alcohol, and apply a
small amount of
lubricant.
NO Check the wiring and
the light-blocking plate;
if normal, replace the
sensor.
NO Connect the connector
properly.
NO See IV. 44.
YES End.
NO Replace the original
scanner motor.
13-133