Canon NP6317 Service Handbook page 63

22. Lens does not move
Cause/Problem
Procedure
area
Lens solenoid 1
(SL2)
Lens drive 2
cable pulley,
Rails
Scanner motor 3
(M2)
Power supply
assembly
DC controller 4
PCB
23. Counter does not operate
Cause/Problem
Procedure
area
Counter 1
Counter 2
DC controller
PCB
CHAPTER 5 OPERATION TROUBLESHOOTING
Check
Switch the power OFF and remove the
rear cover. Set the power switch ON. Does
the lens solenoid (SL2) go ON?
Switch the power OFF. Move the lens in
the ENLARGEMENT and REDUCTION
directions by hand. Does the lens move
smoothly?
See step 4 of "Scanner does not move."
See step 5 of "Scanner does not move."
See step 6 of "Scanner does not move."
Check
Switch the power OFF. Disconnect J314
on the DC controller PCB. Set the meter to
the 1kΩ range and connect the leads to
J314-1 and J314-2 of the part of J134 con-
nected to the wiring. Does the needle
move?
Connect J314 to the DC controller PCB
and set the switch ON. Set the meter to the
30VDC range and connect the (+) lead to
J314-2 and the (-) lead to J314-1. Press the
COPY START key. Does the voltage
change from approx. 0V to approx. 24V?
Result Action
No Check the wiring from
the DC controller PCB to
the lens solenoid (SL2).
If it is normal, replace
SL2.
No Check the lens drive
cable and capstan, and
rails. If necessary, clean
or re-install the wire.
--- ---
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Result Action
No Check the wiring
betweeen the DC con-
troller PCB and the
counter. If it is normal,
replace the counter.
Yes Replace the counter.
No Replace the DC control-
ler PCB.
5-15