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Flow Chart of Troubleshooting
9-12
9-7. Key Data Input
When one of the keys is
pushed,
is it displayed on LCD?
Check the Dome sheet
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-Z400
Page 32: ...8 PCB Diagrams 8 1 Top ...
Page 33: ...PCB Diagrams 8 2 Bottom ...