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Flow Chart of Troubleshooting
9-5. Microphone Part
Microphone does not work
Check the connection
from MIC
Check the circuit
from UCP300(MSM6250A)
Check the MIC
Yes
Yes
to MIC
Yes
Yes
END
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No
Resolder MIC
No
Resolder the R600, R603, R605, R609,
C618, C619
No
Replace the MIC
9-10
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