820-00163 no speakers

arnonabuurs

New member
Hi guys I have this liquid damaged machine, went in a pond. Ultrasoniced it, replaced some IC and display and all working fine except the audio port. It shows the red light and digital out, no speakers detected. Already tried to clean with alcohol, but it was already in the ultrasonic so that didnt do the trick. WHat should i check first?

Addon: I found also that HDMI gives a purple display, i can see everything but purple. The output from the Thunderbold ports & display is fine, so seems no GPU issue. If any idea pls let me know. I already tried to replace the IO board + cable. Same with a new one.
 
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2informaticos

Administrator
Staff member
Check all small coils and zener protections for audio connector; and traces too.

For HDMI you can have broken trace, or knocked off component...
 
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arnonabuurs

New member
We resoldered the joints from J6600 there appeared to be some cracks. Somehow this also fixed the purple colour of HDMI as that worked also after we did this :). Happy customer!
 
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