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Flow Chart of Troubleshooting
9-19
9-9. Key Data Input
When one of the keys is
pushed,
is it displayed on LCD?
Check the Dome sheet & Key FPCB
END
No
Yes
Yes
Check Initial Operation
When one of the keys is
pushed,
KEYSENSE(0)~(4),KYPD9~1
7
Replace the PBA
No
Yes
