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iMac internal speakers not working, please help.

U

un.titled

macrumors regular
Original poster
Jan 2, 2011
156
0
When I turn my iMac on the computer chimes, but after the operating system loads, the internal speakers will not work. Headphones (wireless and wired) work, but when I unplug any external sound device, no sound will play. When I try to turn up/down the volume through my keyboard, this is what I get:

mwu05k.jpg


Computer specs:
Model: White 24"
CPU: 2.16 GHz C2D
Ram: 4GB
OS: 10.6.7

Any ideas?
Thank you.
 
un.titled said:
When I turn my iMac on the computer chimes, but after the operating system loads, the internal speakers will not work. Headphones (wireless and wired) work, but when I unplug any external sound device, no sound will play. When I try to turn up/down the volume through my keyboard, this is what I get:

Image

Computer specs:
Model: White 24"
CPU: 2.16 GHz C2D
Ram: 4GB
OS: 10.6.7

Any ideas?
Thank you.
Click to expand...

Go to System Preferences, Sound and then check if the output is set to "internal speakers"...
 
Is there a red light coming out of the audio out port?
If so plug and pull the TRS (3.5mm) connector of your headphones until it disappears.
 
simsaladimbamba said:
Is there a red light coming out of the audio out port?
If so plug and pull the TRS (3.5mm) connector of your headphones until it disappears.
Click to expand...

ftk57b.jpg


No red light.


BRLawyer said:
So this is the problem that the other poster indicated...your digital audio connector got stuck...insert the headphone again until it disappears.

http://www.mac-forums.com/forums/ap...ok-pro-red-light-no-audio-problem-solved.html

Or here:

https://discussions.apple.com/thread/2257213?start=0&tstart=0
Click to expand...

I have repeatedly inserted the jack and even jiggled it while it was in the port, and still nothing. I'm guessing there is some sort of button that is supposed to pop out when pulling out the jack, letting the internal speakers know to kick on?
 
un.titled said:
No red light.
Click to expand...

Look directly into the hole. It's not very bright. Turn off all the lights and put your hand right behind the hole and see if you can see anything on your hand.

un.titled said:
]
I'm guessing there is some sort of button that is supposed to pop out when pulling out the jack, letting the internal speakers know to kick on?
Click to expand...

Yes, there's supposed to be a switch that disengages. You could try a toothpick if you're brave. Or you could take it to the Apple store.
 
Thank you re: the switch in the earphone socket

I used a paperclip. It works fine now. So glad I don't have to go into the Apple store.

cawesjmu said:
Look directly into the hole. It's not very bright. Turn off all the lights and put your hand right behind the hole and see if you can see anything on your hand.



Yes, there's supposed to be a switch that disengages. You could try a toothpick if you're brave. Or you could take it to the Apple store.
Click to expand...
 
un.titled said:
I have repeatedly inserted the jack and even jiggled it while it was in the port, and still nothing. I'm guessing there is some sort of button that is supposed to pop out when pulling out the jack, letting the internal speakers know to kick on?
Click to expand...


Have you tried using a different headphone jack? I had that same issue with my mac. Tried plugging/unplugging the headphone jack and it always stayed in mute mode. And all I did was use a different headphone jack and resolved it.

Hope this little piece of information works out for you.
 
Had exactly this issue on a 2009 27"iMac, nothing was working until I simply blew into the headphone jack. Might work for others...?
 
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