E404 - Canon iR8500 Service Manual

CHAPTER 6 TROUBLESHOOTING
Belt motor clock sensor (PI1)
3) Set the meter range to 10 VDC. Turn the belt motor by hand. Does
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) Replace the belt motor driver PCB. Is the problem corrected?
YES: Replace the belt motor driver PCB.
NO:
4.1.48 E404 (Indicated if iR8500)
----------
1) Set the DIP switch (SW1) on the ADF controller PCB as indicated.
YES: Go to step 3.
6-116
the voltage between J12-3 (+) and J12-2 (–) on the ADF controller
PCB change between 0V and 5 V?
Replace the belt motor clock sensor (PI1).
troller PCB connected properly?
Connect the cable correctly.
Replace the ADF controller PCB.
Press the push switch (SW2). Does the delivery motor (M5) rotate?
(To stop, press the push switch (SW2) once again.)
COPYRIGHT© 2001 CANON INC.
F06-401-08
2000 2000 2000 2000 CANON iR8500/7200 REV.1 AUG. 2001