820-3437 no audio

zockysworkshop

New member
im kinda confused on this issue. Is the audio chip located on the small board together with the mag safe? I've checked U8040 has enable signal on out i also have PP1V5_S0SW_AUDIO also U6410 gets 5v but nothing on output also MAX98300_R_P and MAX98300_R_N are missing or they suppose to miss not sure. Any ideas ?
 

dukefawks

Administrator
All audio is on the IO board besides the right speaker amp. Try known good IO board and cable first and check J9500 of course.
 

zockysworkshop

New member
I've noticed that after i put the second good IO board i got chime when it was turning on but after there wasn't sound. Also after replacing the io board my fan run on highest RPM I've replaced Q6060 and i checked R6061
 
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