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Flow Chart of Troubleshooting
9-5. Microphone Part
Microphone does not work
Check the connection
from MIC
C221 = 2.1V ?
Check the circuit
from
UCP200
Check the MIC
Yes
Yes
to MIC
Yes
Yes
END
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No
Resolder MIC
No
Check the circuit related to
No
Check the path from Main IC to MIC
No
Replace the MIC
9-9
TA401, R404,R408
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