[SOLVED]820-3787 no audio output or input - bluetooth sound works

dukefawks

Administrator
To rule out the jack and protection diodes remove L6604 and 6608 and connect both pin 1 of them together. See if there is speaker audio now in OSX.
 

ytesfay80

Member
I hoping I can get this fixed soon. I took these measurements again and here is what I got.

PP3V3_S0_AUDIO_ANALOG - 3.25v
PP4V5_AUDIO_ANALOG - 4.5v
PP5V_S0_AUDIO_AMP_L - 5v
PP5V_S4_AUDIO_XW - 5v
L6200 - 5v on both sides
 

dukefawks

Administrator
I don't know anymore. Replace all the DZ660x protection diode at the audio jack. Measure voltages on TIPDET_1 and 2 and compare to working board.
 

ytesfay80

Member
wow I wish I would have tried this much earlier but after replacing all the protection diodes this issue was fixed.

Thanks a lot duke.
 
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