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Flow Chart of Troubleshooting
9-3. Microphone Part - Phone MIC
Phone MIC does not work
Yes
Check the connection
of MIC
OK
Check the components
which are connected to
MIC_BIAS
OK
Check the circuit
of MIC PART
OK
Is Phone MIC working?
Yes
END
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Not OK
Not OK
Solder L120, L121, L124, R108, R110,
C133, C139 and TA101 again
Not OK
Solder L122, L123, D100 and D101
No
9-6
Solder MIC again
again.
Replace MIC
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