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Level 3 Repair
8-18
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8-3-5. Microphone Part
U302 pin A8
Mic_bias="2.15V"?
(TP:C3
07
)
Check the MIC Connection
(look over schematics about
schemetics.)
Replace U302 using a Heatgun
(Because of not soldering well)
Resolder U400, U402, R409, L404, L405, C401,
C407, C414, C423, ZD405, ZD409
(not work if those is not connected.)
END
No
Yes
Yes
Yes
Yes
No
Check the MIC sample.
(it be possible the problem
things)
No
Replace an another MIC
(because of being possible the problem)
Microphone does not work