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Why does the sound turn off on it's own sometimes?

I'm having trouble with the sound, it will turn off on it's own sometimes. The on screen volume bar will show a circle with a / through it.

iMac

Posted on Jun 28, 2012 6:19 AM

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4 replies

Jun 28, 2012 6:32 AM in response to MrKuss

Are you accidentally pushing any buttons on your keyboard? That circle with the / symbol, represents MUTE.



Just saw that you posted a reply in another thread, so I'll recommend the usual...



Mac OS X: Starting up in Safe Mode


http://support.apple.com/kb/HT1455



Resetting your Mac's PRAM and NVRAM


http://support.apple.com/kb/HT1379




Resetting the System Management Controller (SMC)


http://support.apple.com/kb/HT3964

Jun 28, 2012 6:51 AM in response to MrKuss

This problem has surfaced from time to time. It seems that Apple has an overly complicated headphone jack in it's iMacs. If you can hear sound through a set of headphones but the speakers don't come back on when you unplug the headphones it is the contact in the headphone jack not making up properly to transfer the sound back to the speakers.

Gently plug and unplug your headphones until the problem resolves itself. Or if it's still under warranty you could take it into the Genius Bar. The problem there might be that the vibration could "fix" it before you get there.

Why does the sound turn off on it's own sometimes?

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