The Lens Fails To Move - Canon NP6330 Service Manual

35

The lens fails to move.

Cause Step
Rail 1
Drive belt 2
DC power 3
supply PCB
Lens motor 4
(M3)
Motor driver 1 5
PCB
DC controller
PCB
COPYRIGHT © 1997 CANON INC.
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?
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