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Macbook Pro 15 sound not working

123372 Views 52 Replies Latest reply: Apr 15, 2014 10:34 AM by flight302 RSS
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60herz Calculating status...
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Apr 17, 2012 3:17 PM

I have a Macbook Pro 15" 2010, with Lion 10.7.3.  As of Yesterday I have no sound! Through the internal speaker and headphone.  Anybody knows how to resolve it?

MacBook Pro, Mac OS X (10.7.3)
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