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8. Level 3 Repair
8-4-19-1. Main MIC
Check sub board
Connection (HDC8000)
Check the signal of
C8064 = 1.8V
R8010 = 2.4MHz
END
Set the HDC8000 connection
NO
Check main microphone function
In voice call Handset mode
or voice recorder mode
Resolder or replace the U8000(Codec IC)
YES
NO
YES
Replace the Sub board
YES
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