The Lens Fails To Move - Canon NP6260 Service Manual

48. The lens fails to move.

Cause Step
Rail
Drive belt
DC power
supply
DC controller
PCB
Lens motor
(M4, M5)
COPYRIGHT © 1997 CANON INC.
Checks
1 Turn off the power switch, and dis-
connect the power plug from the
power outlet. Does the lens move
smoothly when the pulley of the
lens motor is moved by hand?
2 Is the drive belt attached correct-
ly?
3 Set the meter to the 30VDC
range, and connect the probes to
the connectors J305-1 (+) and
J305-2 (–) on the DC power sup-
ply PCB. Is there 24 VU (DC)?
4 Set the meter to the 200
and connect the probes of the
meter to the connectors of the
lens motor indicated; is the resis-
tance between connectors as indi-
cated?
Motor +
X motor J110-A1
(M4) J110-A4
J110-A1
J110-A2
J110-A4
J110-A5
Y motor J110-A10
(M5) J110-A13
J110-A10
J110-A11
J110-A13
J110-A14
CANON NP6560/NP6360/NP6260 REV. 0 NOV. 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
YES/NO
range,
– Resistance
J110-A2
about 135
J110-A5
J110-A3
J110-A3
about 48
J110-A3
J110-A3
J110-A11
about 135
J110-A14
J110-A12
J110-A12
about 48
J110-A12
J110-A12
CHAPTER 11 TROUBLESHOOTING
Action
NO Check the rail for foreign
matter and dirt. Clean,
as necessary.
NO Attach the belt correctly.
NO See "DC power is
absent."
YES Replace the DC con-
troller PCB.
NO Replace the lens motor.
11-111