COPYRIGHT © 1999 CANON INC. CANON GP160 REV.0 FEB. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
CHAPTER 13 TROUBLESHOOTING
13-26
C.
Operation malfunction countermeasures
1
No power
Cause
Power plug
No power sup-
plied from out-
let
Fuse
DC power sup-
ply PCB
Steps
1
2
3
Yes/No
NO
NO
YES
Action
Connect the power
plug.
Explain to the customer
that the trouble is not
caused by the
machine.
Investigate why the
fuse blew.
Replace the DC power
supply PCB.
Checks
Is the power plug connected?
Is the prescribed voltage being sup-
plied to the outlet?
Are fuses F3, F4 or F5 on the DC
power supply PCB blown?
2
No LCD display on the control panel
Cause
Monitor/Display
contrast
Poor connector
contact
Control panel
Image proces-
sor PCB
Steps
1
2
3
Yes/No
NO
NO
YES
NO
Action
Reset the contrast vol-
ume.
Reconnect the connec-
tors.
End
Replace the image
processor PCB.
Checks
Is the control panel display contrast
adjustment volume properly set?
Are connectors J41 and J42 on the
control panel PCB and connector
J203 on the image processor PCB
properly connected?
Is the trouble resolved when the con-
trol panel is replaced?
Summary of Contents for GP160DF
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