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SGH-E810 Flow Chart of Troubleshooting
2-
4
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4. Microphone Part
Micro-phone does not work
Is the assembled status of
Microphone O.K?
YES
Reassemble the microphone
NO
Check the DC bias voltage on
Mic path.
The voltage of C246 is
2.2V±10%?
NO
Solder the microphone again
or Replace
C233,C246,R232,R233,R235
Is microphone OK?
NO
Check U300
END
YES
YES