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5-5 Microphone Part
Microphone does not work
U400 pin 4, 5 = short?
U622 pin 3 (AVCC)
Check the circuit
from U467 to MIC1
Check the tension of MIC Module
SGH-N500 Flow Chart of Troubleshooting and Circuit Diagrams
Yes
Yes
3.0V?
Yes
Yes
Yes
END
No
Resoler U400
No
Check the circuit related to U622
No
Resolder the
R444,R445,R446,R447,
C446,C450,C451
No
Replace the Mic or Mic Holder
5-9
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