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8-3-5. Microphone Part
Microphone does not work
Check R432 = 2.2V
at Mic Active?
Check the MIC signal paths.
MIC signals are on.
(TP : L403,L410,C422,
C420,R432,R435,R437)
Check the MIC is demaged.
Yes
Yes
Yes
Yes
END
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No
Replace the UCP200 using a Heatgun
(Because of not soldering well)
Resolder L403, L410, C422, C420, R432, R435,
No
(not work if those is not connected.)
No
Replace an another MIC
8-15
Level 3 Repair
R437
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