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Level 3 Repair
8-3-7. Ear Microphone Part
Ear Microphone does not work
C123 ≥ 2.8V
at Ear Mic Active?
Check the Ear MIC Connection
(look over schematics about
schemetics.)
Check the Headset sample.
(it be possible the problem
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Yes
Yes
Yes
things)
Yes
END
No
Replace UCP100 using a Heatgun
(Because of not soldering well)
No
Resolder R318,R319,R320,L306,L304
(not work if those is not connected.)
No
Replace an another Headset
(because of being possible the problem)
8-16
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