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Flow Chart of Troubleshooting
10-10
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10-1-4. Microphone Part
Is the assembled status of
microphone O.K?
Microphone does not work
Reassembled the microphone
Resolder or change
R402,C401,C400,C402,R400,R405,
TA400,R401,C416,R415,C415,R417
END
No
Yes
Yes
Yes
Yes
No
Is microphone ok?
No
Check
UCD300
Check the reference voltage on mic path
VR401
≒
2.0V ?
Yes
①
②