Model A1224 / Early 2009 / 2.66 GHz Core 2 Duo processor

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Why is there no sound coming from the headphone jack?

The main internal speakers are working but there is no sound coming from the rear head phone jack. We've used the jack a lot for both headphones and external speakers. Now, neither are working. Do you think this is a sound card issue or just the jack itself? Thanks for your help!

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Did you take a close look at the tip of the jack plug? They break a lot.

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I have the same problem. The speakers and jack work fine when plugged into another iMac, so I know it's not them. Will a red/white RCA cable connected by a USB produce sound to the external speakers?

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If the internal speakers are working I would think the sound card would be ok. With heavy use sometimes the contacts in a jack will deform and no longer make good contact Since your computer is an early 09 I would check with Apple about a warranty repair. Ralph

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Ralph, thanks for your response. I think we actually got this machine in Dec. 2008 so it's out of warranty. Not sure I want to attempt a repair myself. Likely take this to a local repair shop. Or maybe the Apple Store.

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I think I would still get a appointment with the genius bar--who knows they might decide to cover the repair. Ralph

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An easy workaround would be a USB dongle - has mic and line in/out. USB audio is separate from analog audio and will often work when the onboard wont.

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Bill Horsman will be eternally grateful.
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