How can you disable the internal speakers with a hardware solution?
My aluminium unibody 2008 Macbook has two audio issues. First of all, the internal speakers are damaged, they are very silent and start distorting a lot as soon as I turn the volume higher. Optical out and headphones still work like a charm. The Apple service said I got to change the logic board. No, thanks, not for this cost... :)
The second issue is the common one, that the audio jack frequently jumps back to "Internal speaker", disrupting the sound via headphones. As I cannot use the internal speakers at all, I would like to disable them by some tricky soldering on the logic board. I want to be able to switch between Optical-Out and Headphones-Out.
Does anyone know how to do this? I could not find a explanation for the contacts of the audio jack on the logic board. Can anyone help how to do this? Thanks a lot in advance. Martin
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I could now reach my goal by destroying the correct strip line on the logic board, sensing the current state of the audio jack. Now the macbook thinks I have an optical connection with the red light, even if nothing is connected. If I connect a analog jack (headphones) it switches to the headphone mode.
Perfect solution for me with my broken internal speakers. I even think with some fine soldering work, the original state could be restored. If this is useful to anyone, I'd be happy to send you a pic where you have to scratch to make this happen. All on your responsibility, of course.
Thanks for all your replies.
от Martin