4 Replies Latest reply: Feb 28, 2014 5:38 AM by Casaper
HPlusULK Level 1 Level 1

I recently had my built-in speakers stop working less than a year after purchasing my MacBook Pro 15".  About 24hrs ago, my built-in speakers were working fine.  At some point, I was using my bose headphones, and after I unplugged them, my speakers did not work.  I've confirmed that the sound is not muted.  I have sound visible on the desktop bar, but it is grayed out.  I looked on my system preferences for audio output, and my speakers are not listed as an option.  Only optical digital-out is an option besides my Apple TV. 


MacBook Pro (15-inch, Mid 2012), OS X Mountain Lion (10.8.2)
Solved by Linc Davis on Mar 18, 2013 12:46 PM Solved

Look into the headphone port. If you see a red light, the internal microswitch is stuck in the optical-out position. Insert a headphone jack a few times to try to free it.

Reply by OGELTHORPE on Mar 18, 2013 7:39 AM Helpful

Have you tried a PRAM reset?

 

http://support.apple.com/kb/ht1379

 

If you look in the audio output port, is there a red light showing.  If so, the internal switch is stuck..  Insert the headphones a few times, jiggle a toothpick inside or shot some compressed air to trip the switch.  If no success, have the Apple store genius bar technician do it.

 

Ciao.

All replies

  • OGELTHORPE Level 8 Level 8

    Have you tried a PRAM reset?

     

    http://support.apple.com/kb/ht1379

     

    If you look in the audio output port, is there a red light showing.  If so, the internal switch is stuck..  Insert the headphones a few times, jiggle a toothpick inside or shot some compressed air to trip the switch.  If no success, have the Apple store genius bar technician do it.

     

    Ciao.

  • Linc Davis Level 10 Level 10
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    Look into the headphone port. If you see a red light, the internal microswitch is stuck in the optical-out position. Insert a headphone jack a few times to try to free it.

  • HPlusULK Level 1 Level 1

    Thanks for the help!  I didn't see the red light; however, after I inserted my headphone jack back into the port and wiggled it a little bit, and pulled it back out, the external speakers worked just fine.

  • Casaper Level 1 Level 1

    Hello, I have the same problem here on my Late 2011 17" MBP.

    But resetting the PRAM didn't help it, nor wiggling headphones in the port.

    Any ideas to get that fixed. I get perfect sound on headphones, and the speakers are obviously working perfectly, because the MACs startup boooong is comming loud and clear.

     

    And right now, short after, trying to plug in a iphone microphone and control capable headphone into the jack helped it. But I get this problem every now an dthen.

     

    What could be done about this?