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SCH A310
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8-4
T
rouble Shooting
8-1-4
Abnormal Key Data Input
Check initial status.
END
Normal Key data
input?
Replace the Keyboard.
NO
NO
NO
NO
YES
YES
YES
YES
Scanning signals
outputted from U100
scan 0~5 Keysense
0~3
Check MSM board U100
NO
NO
NO
NO
YES
YES
YES
YES
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