820-01521-A no internal speaker-output - SPKRAMP_RESET_L shorted in T2

mbcontrol

Member
This MB had a liquid damage at the audio-board and did get a new Audio board and flex cable.
But there is no output at the internal speakers. Output headphone is ok.

SPKRAMP_RESET_L = low, diodemode is 0,512
SPKRAMP_RESET_L = low, diodemode is 0,002

I removed U6400, C6103 and the flexcabel to the audioboard. J6100 and all traces looks good.
So i think the short of SPKRAMP_RESET_L is probably inside T2, what do yout think?

Could it be a solution, setting SPKRAMP_RESET_L high with an jumperwire?
 

mbcontrol

Member
Sorry, there is a mistake in my first comment ...
The shorted rail is SPKRAMP_INT_L and not SPKRAMP_RESET_L. Here the correct values ...

SPKRAMP_RESET_L = low, diodemode is 0,512
SPKRAMP_INT_L = low, diodemode is 0,002

I'm afraid your answer is still the same
 
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