The Lens Fails To Move - Canon NP6330 Service Manual

35

The lens fails to move.

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