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Flow Chart of Troubleshooting
9-8
9-5. Microphone Part
Microphone does not work
Yes
Check the connection status
of MIC
from MIC
No
Resolder the MIC
Yes
Resolder R511, R513, R514, TA502
Check MIC_BIAS
= ' H' ?
No
Yes
Check MIC_SEL
= 'H' ?
Check the related circuit
No
Yes
Check the MIC
Replace the MIC
No
Yes
END