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Flow Chart of Troubleshooting
5. Microphone Part
Microphone does not work
Check the connection
from MIC
Check the circuit
from U200 to MIC
Check U601 PIN 8
Check the MIC
Yes
Yes
Yes
= ' H' ?
Yes
Yes
END
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No
Resolder MIC
No
Resolder the C603, C609, R600, R602
No
Check the JACK_EN signal
No
Replace the MIC
7-12
R603
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