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