Flow Chart of Troubleshooting
10-12
10-1-5. Microphone Part
The assembled status of
microphone is O.K
Microphone does not work
Reassembled the microphone
Resolder or change
R419, R420, R421, R422, R423, R424,
R425, R426, R427, R430, C421, C433
END
No
Yes
Yes
Yes
Yes
No
The microphone is O.K
No
Check UCP101
Check the reference voltage on mic path
The Voltage @ C430 is
about 2.0V
Yes
1
2