Microphone Part - Samsung GT-E2330B Service Manual

8-3-5. Microphone Part

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