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Flow Chart of Troubleshooting
9-14
9-7. Key Data Input
When one of the keys is
pushed,
is it displayed on LCD?
Check the Dome sheet & Key rubber
END
No
Yes
Yes
Check Initial Operation
When one of the keys is
pushed,
KBIO signal is OK?
Replace the PBA
No
Yes
Summary of Contents for SGH-X656
Page 41: ...8 PCB Diagrams 8 1 ...
Page 42: ...PCB Diagrams 8 2 ...