Microphone Part - Samsung SGH-Z140 Service Manual

Flow Chart of Troubleshooting

7-5. Microphone Part

Microphone does not work
Yes
No
Check the connection Resolder MIC
from MIC
Yes
No
Resolder the R603, R605, R610, R615, C643,
Check the circuit
from U301 to MIC C644,
and C641
Yes
Check the MIC
Replace the MIC
Yes
END
7-10
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