E015 - Canon NP6045 Service Manual

CHAPTER 10 TROUBLESHOOTING

10. E015

Cause Step
Power supply
(motor
controller PCB
is part of pick-
up motor)
DC controller
PCB
Pick-up motor
(M2)
10-80
COPYRIGHT © 1997 CANON INC.
Checks
1 Set the tester range to 200 VDC.
Connect the + probe to J612-3
and the – probe to J612-4 on the
motor controller PCB. Is the
voltage about 12 V?
2 Is the voltage between the
following pins of the DC controller
PCB as indicated?
(+) (–)
J114B-10 J114B-9 12 V (approx.)
J114B-12 J114B-11 5 V (approx.)
3 Connect the + probe to J114B-8
on the DC controller PCB and the
– probe to GND. Does the voltage
change to about 5 V when the
motor starts to rotate?
4 Replace the pick-up motor (M2).
Is the problem corrected?
YES/NO
NO
NO
Voltage
NO
YES
CANON NP6045 REV. 1 MAR. 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Action
Check the wiring from
the DC power supply
PCB to the motor
controller PCB; if normal,
replace the DC power
supply PCB.
Check the wiring from
the DC controller PCB to
the motor controller
PCB; if normal, replace
the DC controller PCB.
Check the wiring from
the DC controller PCB to
the motor controller
PCB; if normal, replace
the DC controller PCB.
End.