Earphone Mic Does Not Work - Samsung GT-E2232 Service Manual

Earphone MIC

Earphone MIC does not work

Check EAR400(Earjack) status
(ex. bent metal, it will be not
contact earphone)
C210 and R400 ≒ 2.2V?
Check the status of soldering
R400, R403, R404, C406,
C418, L403
(ex. Crack)
END
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Yes
OK
Yes
OK
Not OK
Replace EAR400 using a Heatgun
(Caution, Plastic Mold is easy to melt.)
Replace UCP200 using a Heatgun
No
(Because of not soldering well)
Resolder R400, R403, R404, C406,
Not OK
(not work if those is not connected.)
8-18
Level 3 Repair
C418, L403