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10. E210
11. E220
12. E240
COPYRIGHT
©
1997 CANON INC. CANON NP6218 REV. 0 MAY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
10-68
CHAPTER 10 TROUBLESHOOTING
Checks
Turn on the power switch. Does
the lens move?
Is the lens home position sensor
(PS2) normal? (See the
instructions on how to check
photointerrupters.)
Replace the DC controller PCB. Is
the problem corrected?
Cause
Lens home
position sensor
(PS2)
DC controller
PCB
Step
1
2
3
Results
NO
NO
YES
Action
See “The lens fails to
move.”
Check the wiring
between the connector
(J307) on the DC
controller PCB and the
lens home position
sensor (PS2); if normal,
replace PS2.
End.
Checks
Does the scanning lamp turn on?
Replace the DC controller PCB. Is
the problem corrected?
Cause
DC
controller
Composite
power supply
PCB
Step
1
2
Results
NO
YES
NO
Action
See “The scanning lamp
fails to turn on.”
Replace the DC
controller PCB.
Check the wiring
between the DC
controller PCB and the
composite power supply
PCB; if normal, replace
the composite power
supply PCB.
Checks
Turn on and off the power switch.
Cause
DC controller
PCB
Step
1
Results
YES
NO
Action
End.
Replace the DC
controller PCB.