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iTune
Feb 8, 2013, 10:56 PM
Hi all,

The headphone jack on my Macbook Air doesn't function at all. As in when I plug in headphones or speakers the music/movie continues to play on the computer speakers and obviously the headphones/speakers have no sound. Can anyone help?

Thank you.



simsaladimbamba
Feb 8, 2013, 11:00 PM
Check System Preferences > Sound > Output or OPTION/Alt click the sound/volume icon in the Menu Bar and tell us, what is listed and checked as Output Device.

http://dl.dropbox.com/u/10644330/MR_Image_Hotlinks/MR_screenshots/MR_screenshots_2012_01/2012_01_04_pC1_OptionClickVOLUMEicon.png

iTune
Feb 8, 2013, 11:14 PM
Thank you but still can't seem to get any sound and when I plug in the headphones there is still no option to select headphones as output, only internal speakers and speakers. I also don't see 'Line In' under Input Device. I guess I need to send it in for a repair?

fwhh
Feb 9, 2013, 03:04 AM
There is no Line In on the MBA, so it is not listed.
You can try to reset the SMC an/or the PRam of your mac
http://support.apple.com/kb/HT3964?viewlocale=en_US&locale=en_US
(http://support.apple.com/kb/HT3964?viewlocale=en_US&locale=en_US)
http://support.apple.com/kb/HT1379

iTune
Feb 9, 2013, 03:15 AM
Thank you, second link resetting the pram did it.

GreenMtGuy
Feb 16, 2014, 10:46 AM
Read thread to diagnose my loss of one channel on speakers & headphones attached via 3.5mm audio output. Determined that it wasn't a software issue by listening to output via internal speakers and adjusting balance full left and right...which worked perfectly.
Removed most of cotton from an ear swab (Q-tip) and moistened with alcohol.
Rubbed it gently around inside jack...removing what I expect was dirt (or carbon from arcing?) Saw some vaguely black stains on swab when I removed it.
Plugged speaker plug back in and I had both channels!:)