Canon FY8-13EX-000, NP6218 service manual Scanning lamp fails to turn on, Lens fails to move, 10-75

CHAPTER 10 TROUBLESHOOTING

24. The scanning lamp fails to turn on.

Cause	Step	Checks	Results	Action
Scanning lamp	1	Turn off the power switch, and	NO	Re-attach the lamp.
		disconnect the power plug. Is the
		lamp attached correctly?
Scanning lamp	2	Are the ends of the scanning lamp	YES	Replace the scanning
		black?		lamp.
DC controller	3	Replace the DC controller PCB. Is	YES	Replace the DC
PCB		the problem corrected?		controller PCB.
Composite			NO	Check the wiring
power supply				between the DC
PCB				controller PCB and the
				composite power supply
				PCB; if normal, replace
				the composite power
				supply PCB.

25. The lens fails to move.

Cause	Step	Checks	Results	Action
Change	1	Turn off the power switch, and	NO	Check the wiring
solenoid		detach the rear cover. Do the		between the DC
(SL1)		change solenoid (SL1) turn on at		controller and SL1; if
		power-on? (Check with the naked		normal, replace SL1.
		eye.)
Lens cable,	2	Are the lens cable, pulley, and rail	NO	Check the lens cable,
pulley, rail		normal?		pulley, and rail; as
				necessary, clean or re-
				route the cable.
DC power	3	Is 34 V being generated at the	NO	See “DC power supply is
supply		J210-5 on the composite power		absent.”
		supply PCB?
DC controller	4	Replace the lens motor. Is the	NO	Replace the DC
PCB		problem corrected?		controller PCB.
Lens motor			YES	End.
(M3)

COPYRIGHT © 1997 CANON INC. CANON NP6218 REV. 0 MAY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON) 10-75