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Flow Chart of Troubleshooting
10-
8
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10-1-4. Microphone Part
The assembled status of
microphone is O.K
Microphone does not work
Reassembled the microphone
Resolder or change
Check component of mic path.
END
No
Yes
Yes
Yes
Yes
No
The microphone is O.K
No
Check UCD102
Check the reference voltage on mic path
The Voltage @ C318 is
about 2.0V
Yes
1