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4. Troubleshooting
4-4-4 -SE-
The membrane
is defective.
Replace the
Control Panel.
Key Short Error (- SE -)
YES
Is the key not recognized
YES
Is the key recognized
intermittently?
Is a specific key
YES
not recognized?
After Power > On,
NO
does the symptom continue?
Replace the PCB.
Perform the operation again and check if it
is working properly.
membrane
Connector
1
at all?
NO
NO
NO
S/W Error
YES
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