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8. Level 3 Repair
8-4-9-1. Microphone Part
- Main MIC
Check main microphone function
in Loopback Test RCV_1stMic mode
Yes
Check the voltage at
C1031 = 1.8V of sub PBA
No
Replace U8008 of MAIN PBA
Yes
END
Check the
MAIN_DMIC_DATA at
C1032 of sub PBA?
Yes
No
Replace s u b P B A
Or replace Main BtoB FPCB