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The volume om my macbook only works when the headphones are…

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The volume om my macbook...
The volume om my macbook only works when the headphones are plugged in, what's wrong?
Submitted: 8 years ago.Category: Mac
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Answered in 3 hours by:
6/29/2010
Mac Support Specialist: iteachmac, The Duke! replied 8 years ago
iteachmac
iteachmac, The Duke!
Category: Mac
Satisfied Customers: 865
Experience: Mac help ,music midi expert, logic pro recording ,electrical installation ,ilife & all mac computing
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Hi ,

This seems to be a problem with digital output on the MBP .

Please can you see a faint red light coming from the audio out port ?
You my need to dim your house room lights to see .
If you can see red then the output is stuck on digital.

To use digital on the MBP you need a adapter to make the port into a toslink connector for optical out.

Turn turn off digital optical out.

Please open Audio midi setup from the Utilities folder inside the Applications folder .
Or type Audio midi , in spot light and hit enter.

The output should be set to 16bit or 24bit audio .

If it is set to encoded output or digital out please change to 16bit or 24bit or built in sound etc.

Encoded output and digital out are for use with optical output and a surround decoder HI-FI amplifier etc .

If you cant switch from Digital to Built in or 16bit 24bit ,then there maybe an issue with the OSX preferences . There have been a small number of cases .

Sound control panel:

Open Apple menu , System preferences , Sound control panel pane , Output tab .
Make sure built-in output is selected or internal speakers etc.
If digital out is selected this is the same as the setting in audio midi setup.
If you change a setting in one control panel it should then reflect that change in the other . .

Please let me know .

Thanks.


Edited by iteachmac on 6/29/2010 at 8:48 AM EST
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