internal speaker not working?

Question

Level 1

9 points

internal speaker not working?

my mac was on sleep and i unplugged my ipod, the mac came on and since then the internal speaker is not working its not even showing up in the system preferences. its not labeled under output sources. even if i hook an audio cable up to my tv it wont work i even tried plugging my ipod earphones into the mac and still nothing. the little speaker logo in the menu bar disappeared and when i turn up the volume it wont turn up or down but the logo appears on the screen with a little stop sign underneath.
ive restarted and shutdown the mac but nothing has changed?
(i dont run snow leopard incase anyone thinks thats the problem)
cheers for any help in advance.

Posted on Jan 25, 2010 9:05 AM

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Answer 1

Frazzone

Level 1

0 points

Jan 25, 2010 9:34 AM in response to dannie p

Unfortunately, this may be a repair problem. I've had this happen several times after opening the Mac Mini to upgrade the memory or disc drive. There's a very thin and flimsy ribbon cable going from the logic board to the back of the DVD drive. It comes loose very easily. If it's jostled even slightly you'll lose your sound hardware. For some reason you may not notice this right away, but the next time you reboot the system the hardware will vanish, as far as Mac OS is concerned. Whether you're running Tiger, Leopard, or Snow Leopard doesn't matter, it's a hardware problem. Was the system dropped or jarred? Last time this happened to me a heavy object fell on the desk and although it did not hit the computer, it bounced it around a bit. I finally gave up repairing it, (would have been the third or fourth time) and got an external USB sound device (I got a Griffin iMic, but others are good too).

Take it to the Apple dealer, if it's under warranty. Otherwise consider getting the external USB sound hardware.

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Answer 2

Dah•veed

Level 9

64,651 points

Jan 25, 2010 12:42 PM in response to dannie p

Try a PRAM reset;
1. Shut down the computer.
2. Locate the following keys on the keyboard: Command, Option, P, and R. You will need to hold these keys down simultaneously in step 4.
3. Turn on the computer.
4. Immediately press and hold the Command-Option-P-R keys. You must press this key combination before the gray screen appears.
5. Continue holding the keys down until the computer restarts, and you hear the startup sound for the second time.
6. Release the keys.

Dah•veed

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