Main MIC Working
Operate MIC
NG
Pollute
MIC Hole?
NO
C418 = 2.2 V ?
YES
Between C419 an
d C403 = 0 ohm?
YES
Check
mic
Correctly mount?
YES
Change main PBA
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YES
Clean up MIC hole
NO
Resolder
L406,C418
NO
Resolder
L409, C403
NO
Resolder
MIC401
8-13
Level 3 Repair
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