HT203186: Troubleshooting issues with no audio from built-in speakers on Macs
Learn about Troubleshooting issues with no audio from built-in speakers on Macs
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Helpful answers
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Feb 17, 2016 5:57 PM in response to tpwherkqby dominic23,★Helpful1. Plug in and remove the headphone.
If you see red light in the headphone port, plug the headphone
in and o ut of the port 5 or 6 times to flip the microswitch inside.
Sound output may be stuck in digital mode.
2. Reset PRAM. http://support.apple.com/kb/PH18761
3. Reset SMC. https://support.apple.com/en-us/HT201295
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Feb 17, 2016 5:58 PM in response to dominic23by tpwherkq,Thanks except I see no red light what else can I do
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Feb 18, 2016 4:53 AM in response to tpwherkqby dominic23,★Helpful1. Hold the option key down, click the sound icon in the menu bar and select Internal Speakers.
2. 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.
Make sure that CH1 and CH2 volume sliders are at the middle and matched.
3. System Preferences > Sound> Sound Effects
Play sound effects through:
Select "Internal speakers" and then back to "Selected sound output device".
4. Restore OS X from the previous backup.
Best.
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Feb 18, 2016 4:55 AM in response to dominic23by tpwherkq,there. Is no sound icon on the menu bar how to I get to it thanks
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Feb 18, 2016 5:15 AM in response to tpwherkqby dominic23,Please take the computer to the Apple store to have it checked out.
Best.
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Feb 18, 2016 10:34 AM in response to tpwherkqby Eric Root,System Preferences/Sound - check Show volume in menu bar.