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SGH-D730 Flow Chart of Troubleshooting and Circuit Diagrams
2-
32
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2-3-1. Bluetooth Part
Enable BT function
NO
Check U202 and change
NO
Check U700 or
Initial part
NO
YES
YES
YES
BT connection disable
END
YES
Check BT function ON
Check the voltage of
R126 is around 3V
Check 32KHz Clock on
R707
Check 13MHz Clock on
C142
Check "High" signal
on R708
YES
Check OSC700 and
change
NO
Resolder or change R708
NO
YES
Check the
assembled status of
AN700
Resolder or change
AN700
NO
YES
Exchange U702
Change U702
NO
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②
③
④
⑤
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