Please can someone help me!
I took out some speakers from the headphone jack, and the sound stopped working. I have tried putting the speakers back in, putting headphones in, but nothing works.
Is there something I could do with the MIDI set up? I really dont know.
Mac Pro
Go step by step and test.
1. System Preference > Sound > Output > Internal Speakers
Highlight Internal Speakers / Headphones
Make sure that Mute is not enabled.
2.Plug in and remove the headphone.
If you see red light in the headphone port or not, plug the headphone
in and out of the port 5 or 6 times to flip the microswitch inside.
Sound output may be stuck in the digital mode.
Try this even if you don’t see the red light.
3. Reset PRAM. http://support.apple.com/kb/PH14222
4. Reset SMC. http://support.apple.com/kb/HT3964
Choose the method for:
"Resetting SMC on portables with a battery you should not remove on your own".
5. Applications > Utilities > Audio MIDI Setup
Audio Devices window
Side Bar
Click the Built-in Output.
Under Mute any of the boxes checked? If so,uncheck it.
6. Plug in the headphone and reset SMC.
7. Reinstall OS X.
I can get no sound of my MacBook Pro, after I unplugged some speakers. The 'internal speakers' doesn't show up on output devices.
