3-95
Confidential
8.2 The control panel cover ASSY does not Work.
<User Check>
- Check whether the function lock is not set.
Step Cause Check
Result
Remedy
1 Key sticking Is there a key on the
panel stuck?
Yes Clean up the control
panel cover ASSY, or
remove the burrs from
control panel cover
ASSY and panel keys.
2 Connection
between main PCB
and panel PCB
Are the main PCB and
panel PCB connected
properly?
No Reconnect the
connector properly.
3 Rubber key Is the problem solved
after replacing the
rubber key?
Yes Replace the rubber Key.
4 Panel PCB Is the problem solved
after replacing the panel
PCB ASSY?
Yes Replace the panel PCB
ASSY.
5 Main PCB Is the problem solved
after replacing the
main
PCB
ASSY?
Yes Replace the
main PCB
ASSY.
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