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IGEP0040HardwareRABugs

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=== BUG FULL_05: Optional input amplifier: gain is too low ===

'''INFO:''': Gain from NFM2173 isn't enough for a MIC audio

 

'''WORKAROUND:''' Use PMIC MICs as a dedicated input for a JA1 connector: disable optional input amplifier, input audio switch and cirrus U81 ADC1 and ADC2:

 

- C704, C705 not mount

 

- R718, R716 not mount

 

- R737, R738 not mount

 

- R705, R708 mount

 

- R870, R871, R872, C889, C890 mount

 

- R800 mount

 

- R802 no mount

 

'''RESULT:'''

 

- JA1: PMIC MIC IN

 

- JA2-6: CIRRUS

 

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