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Flow Chart of Troubleshooting
9-5. Microphone Part
Microphone does not work
Yes
No
Is the SMD status of
Replace the MIC.
microphone O.K?
Yes
No
Is the voltage of C536
Check UCP300
2.1V ?
Yes
No
Is the the path around MIC
Replace the PBA.
bias circuit O.K?
Yes
END
9-9
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