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Flow Chart of Troubleshooting
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9-9
9-5. Microphone Part
Microphone does not work
Yes
Resolder MIC
Check the connection
from MIC
No
Check the circuit related to
R142
Check the JACK_IN =
3.0V ?
Yes
Check the path from Main IC to MIC
Check the circuit
from
UCP200
to MIC
No
Yes
Replace the MIC
Check the MIC
No
Yes
END