E405 - Canon iR8500 Servise Manual

CHAPTER 6 TROUBLESHOOTING

4.1.47 E405

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1) Set the DIP switch (SW1) on the ADF controller PCB as follows:
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.
NO:
YES: Replace the ADF controller PCB.
6-120
Press the push switch (SW2). Does the separation motor rotate?
meter range to × 1Ω Ω Ω Ω Ω , and connect the connector as indicated. Is the
resistance about 5.0Ω Ω Ω Ω Ω ?
J8
Replace the separation motor (M4).
Rotate the separation motor by hand. Is the voltage between con-
nectors J12-5 (+) and J12-4 (–) on the ADF controller PCB change
between 0 V and 5 V?
Replace the separation motor clock sensor (PI2).
COPYRIGHT© 2001 CANON INC.
F06-401-10
ADF
controller
PCB
1
2
F06-401-11
2000 2000 2000 2000
J8
CANON iR8500 REV.0 MAR. 2001