820-3115 Sound problem

[dukefawks]

What kind of "hole". It is very possible that if the board was burned that there is some kind a short inside the board.

 

[stephsa]

and does it possible to find the internal board view ?

The first problem was a high Courant gone through the jack connector. I don't know how but it is clearly the first problem.

 

[dukefawks]

Nope, there is no "internal" board view. If you really have time to waste you can dig into a donor board and see what is there. But this is just not a feasible repair for a single repair.