MacBook speakers suddenly stopped working

B

BikerRob

Registered
I have a 2nd Gen MacBook (bought it a few weeks ago). A few hours ago, the speakers stopped working on it. If I plug in an external speaker, I get full sound, but nothing is coming out of the built-in speakers.
AND, there's a bright red light when you look in the hole for where you plug in headphones/speakers.

Any ideas?

It's frustrating ... I just bought this MacBook, and I've had it in the shop for a week already (there was a screw bouncing around inside that ended up killing the logic board. I had that replaced just before Christmas).

Any help is appreciated

Rob
 
To add to my own post ... when I reboot, the red light goes out, and the "ta daa" plays on the reboot. However, once the MacBook finished loading, the red light in the "headphone" slot goes back on, and the sound doesn't work.
I'm guessing it's a setting SOMEWHERE ... but where?
 
The red light that you see in the audio port is the Optical audio, provided through that same port. The light is not a warning of any kind, but is simply the color used for the optical signal. You will only have access to that optical signal with a combined TOS-Link cable, connected to speakers or an audio amp that can use that optical digital signal. Otherwise, it has been turned on accidentally.
Make sure that your System Preferences/Sound has the internal speakers chosen from "Play alerts and Sound effects through:"
Click on the Output tab, and make sure the Internal speakers are selected from the output device list.
Go to your Applications/Utilities folder, and open Audio MIDI Setup, and check the various ouput settings. Make sure none are set to Optical or digital out.
 
Well, I fixed it. I did some more research and found out that this is not uncommon for the MacBook. I took one of my wife's hair clips and "massaged" the inside of the audio jack, and voila, the light went out and the speakers are now working.
Weird, but hopefully that's all it took
 
BikerRob said:
Well, I fixed it. I did some more research and found out that this is not uncommon for the MacBook. I took one of my wife's hair clips and "massaged" the inside of the audio jack, and voila, the light went out and the speakers are now working.
Weird, but hopefully that's all it took
Click to expand...

If it is under warranty still, call Apple ASAP have have them look at it. This sounds like there is a wire inside not fully attached right inside.
 
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