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