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Level 3 Repair
8-15
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8-3-5. Microphone Part
▶
Main MIC
Check the status of soldering
L400, L401
(ex. Crack)
Resolder L400, 401
(not work if those is not connected.)
END
Not OK
Yes
OK
OK
Check the MIC sample.
(MIC400)
(it be possible the problem)
Not OK
Replace an another MIC (MIC400)
(because of being possible the problem)
Microphone does not work
C406, L400
≒
2.2V
at MIC Active?
(C406's on one side, it will
be 0V)
Replace UCP200 using a Heatgun
(Because of not soldering well)
Yes
No
MIC hall wil be Checked
blocked up by MIC rubber or
others
MIC rubber set correctly or
Clean the MIC hall.
OK
Not OK