Canon DADF-J1 Service Manual page 211

CHAPTER 5 TROUBLESHOOTING
Belt motor clock sensor (PI1)
3) Set the meter range to 10 VDC. Does the voltage between connec-
NO:
Cable
4) Is the cable between the belt motor driver PCB and the ADF con-
NO:
Belt motor driver PCB, ADF controller PCB
5) Try replacing the belt motor driver PCB. Is the problem corrected?
YES: Replace the belt motor drive PCB.
NO:
5-54
tors J12-2 (+) and J12-1 (-) on the ADF controller PCB alternate be-
tween 0 and 5 V when the belt motor is rotated by hand?
Replace the belt motor clock sensor (PI1).
troller PCB connected properly?
Connect it properly.
Replace the ADF controller PCB.
COPYRIGHT © 2001 CANON INC. 2000 2000 2000 2000 CANON DADF-J1 REV.0 MAR.2001