1 No sound from internal speakers
6 weeks ago internal speakers stopped working - 100%. I hardly ever use them so no chance of blowing them or anything like that.
Computer works perfectly - except w/o a connected speaker (or even fake headphone jack) videos will not play (typical for this type of problem).
I started with the easy stuff.....and went bit by bit. Apple Hardware Test says everything is fine. I then tried their new "repair it yourself" hardware test using my iPhone. This also checked out in the general test - BUT, the Audio test seemed to detect a problem - but not specifically as the drop down said something about the microphone (which all works perfectly). Perhaps that app just does not diagnose to the proper level....although hard to believe.
Today I backed up and reset the computer to factory....of course, that didn't fix it either. Apple online chat knows much less than I do and the first attempt at an Apple Service Center (not an Apple Store) was "you have to leave it here".
It's amazing that even a diagnosis seems to escape Apple - although I will make one more try at a real Apple Store and see if their tool works better than the Self-Repair software.
My initial thoughts were a software issue - but I think that is now less likely, so the question becomes which part I might need to repair? Is there a single board which would stop generated sound from making it to the internal speakers (but allow it to go everywhere else)?
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