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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 C303, C307 and TA300 again
Not OK
Solder D300,D301,C301,C304,C309 and
No
9-6
Solder MIC again
C305 again
Replace MIC
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