User Guide

CHAPTER 11
TROUBLESHOOTING
COPYRIGHT © 1997 CANON INC. CANON NP6330 REV.0 MAY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
11-97
35 The lens fails to move.
Cause
Rail
Drive belt
DC power
supply PCB
Lens motor
(M3)
Motor driver 1
PCB
DC controller
PCB
Checks
Turn off the power switch, and
move the pulley of the lens motor
by hand. Does the lens move
smoothly?
Is the drive belt attached
normally?
Is a voltage of about 24 V present
between J201-1 (+) and J201-2 (-)
on the motor driver PCB?
Replace the lens motor. Is the
problem corrected?
Replace the motor driver 1 PCB.
Is the problem corrected?
Step
1
2
3
4
5
YES/NO
NO
NO
NO
YES
YES
NO
Action
Check the rail for foreign
matter and dirt.
Re-attach it.
Check the wiring from
J201 to the DC power
supply; if normal, see
“DC power is absent.”
End.
End.
Check the wiring from
the DC controller PCB to
the motor driver 1 PCB
and from the motor
driver 1 PCB to the lens
motor; if normal, replace
the DC controller PCB.
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