Help! There is no sound from the speakers!
Just stopped working!
Help solve the problem!
Symptoms:
1)
2)
Tried to do:
1) Start computer up in Safe Mode
2) NVRAM reset
3) SMC reset
4) Reboot the machine
5) Reinstalling MAC OS
MacBook Pro (13-inch, Late 2011) OS X Mavericks
Any sugestions?
Thanks.
MacBook Pro, OS X Mavericks (10.9.2)
Go step by step and test.
1. System Preference > Sound > Output > Internal Speakers
Highlight Internal Speakers.
Make sure that Mute is not enabled.
2.Plug in and remove the headphone.
If you see red light in the headphone port, 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.
3. 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.
4. System Preferences > Sound> Sound Effects
Play sound effects through:
Select "Internal speakers" and then back to "Selected sound output device".
5. Contact Apple.
Unfortunately it doesn't work.
Audio MIDI - not devices,
Not headphone,
Not red light.
I install Windows 7 via Boot camp, to determine the source of the problem: a software or hardware reason.
If programmatic sound under Windows 7 will work.
Later I'll write about the results.
No internal speaker device for sound output
