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Flow Chart of Troubleshooting
7-10
7-5. Microphone Part
Replace the MIC
No
Check the MIC
Yes
Microphone does not work
Check the JACK_IN, JACK_EN signal
No
Check R605, R625
= ' H' ?
No
Yes
Yes
Yes
Yes
No
END
Resolder the C603, C606, R601, R603, R604
L600, L601, U600
Resolder MIC
Check the circuit
from UCP200 to MIC
Check the connection
from MIC