Question about Apple MacBook Mac Notebook

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My sound isn't working. the headphone plug has a red light coming from it.

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The audio out jack on current MacBooks is a dual-phase component that works with both electronic and optical equipment. When you insert a plug into the jack, the red light will come on as the machine attempts to make an optical connection. If the red light remains on when there is no object inserted, it is an indication that the sensor that detects objects is malfunctioning. If your machine is under warranty, you will want to bring it in to an Apple technician for repair. If not, some users have had luck cutting off the top of a cotton swab and using the shaft to probe gently down deep in that hole and jiggle the sensor back into position. It goes without saying that you assume responsibility for any damage you may do to your machine during this procedure.

Posted on Nov 01, 2010

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Posted on Jan 02, 2017

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