E405 - Canon DADF-J1 Service Manual

CHAPTER 5 TROUBLESHOOTING

2.1.3 E405

1) Set the DIP switch (SW1) on the ADF controller PCB as indicated.
YES: Go to step 3).
Separation motor (M4)
2) Disconnect the connector (J8) of the ADF controller PCB. Set the
NO:
Separation motor clock sensor (PI2), ADF controller PCB
3) Set the meter range to 10 VDC. Does the voltage between connec-
NO:
YES: Replace the DADF controller PCB.
5-56
Does the separation motor (M4) rotate when the push switch (SW2)
is pressed?
(To stop the operation, press the push switch (SW2) once again.)
meter range to x1Ω Ω Ω Ω Ω , and connect the meter probe to the connectors
on the cable side as indicated. Is the resistance about 5.0Ω Ω Ω Ω Ω ?
1 (red)
2 (blue)
J8
Replace the separation motor (M4).
tors J12-5 (+) and J12-4 (-) on the ADF controller PCB alternate be-
tween 0 and 5 V?
Replace the separation motor clock sensor (PI2).
COPYRIGHT © 2001 CANON INC.
ADF
controller PCB
J8
2000 2000 2000 2000 CANON DADF-J1 REV.0 MAR.2001