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Flow Chart of Troubleshooting and Circuit Diagrams
9-10
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9-1-5. Microphone Part
Micro-phone does not work
Is the assembled status of
Microphone O.K?
Reassemble the microphone
Check the DC bias voltage on Mic path.
Check the path around MIC
Bias circuit
The microphone is OK
Check UCP101
END
NO
YES
NO
NO
YES
YES
YES
The voltage of C381 is
about 2.4V ?