If you connected a Mac Mini to external speakers in your office or to a TV to do a presentation, the Mac should automatically use the external speakers. Once these are checked you can check the Mac Mini's software controls.
Examine the external speakers to ensure they are plugged in or that the battery is charged. Most speakers have a small light near the volume control to indicate the speakers are turned on. Unplug the speaker connector from the Mac Mini and plug it back in again. If the speakers make a noise, like a buzz or click while moving the connector in the port, the speakers are most likely operating correctly. If they make no noise at all, there may be an issue with the speakers. Select "System Preferences" from the Apple menu in the upper left corner of the screen.
Select "Sound" in the Hardware section of the System Preferences menu. Click the "Output" tab and then select the output you want to use, such as the internal speakers, external speakers or HDMI, depending on what is connected to the Mac Mini. Drag the "Output Volume" slider to the right to increase the volume. Make sure the "Mute" option is not selected. Turn the Mac Mini back on and then immediately press the "Command," "Option," "P" and "R" keys all at the same time -- this must be done before the screen becomes gray. Continue to hold the keys until you hear the Mac startup sound twice, then release the keys.
Wait for the computer to restart. If the computer loses sound again after you shut it down, you'll need to take it to an authorized Apple service center for repair, as it's likely that the logic board battery needs to be replaced. Your computer will continue to boot as normal.
You may notice that this boot takes a little longer than normal. Check your sound and other settings.
Mac no sound [SOLVED]
Test to see if you can hear sound again, and if you can adjust the volume. Your clock may have reset during this process, so you may need to change this back. Check to see if you are running the latest version. OS X Mavericks El Capitan Open the Mac App Store. Mac updates are free and are available from the Mac App Store.
Click the "Updates" tab. If there are any available system upgrades, they'll be listed here. Download the latest version of OS X. Download El Capitan if it is listed in the Updates section. The download will likely take a while to complete. Install the system update. Follow the prompts to install the system update.
Getting the Sound to Work on a Mac Mini | Your Business
It's a pretty straightforward process, and you won't lose any of your files or settings. Test your sound again.
Once the update has finished and you're back at your desktop, test your sound again to see if it is working. Do you have parental controls enabled? If so, the sound might be disabled at night. If not, I'd recommend taking it into a tech-shop; they'll know more. Yes No.
How to check your sound settings
Not Helpful 3 Helpful 2. What should I do if there is no sound on my Mac and a red light at the headphone jack? Put head phones in the jack, then pull them out again a day later or take the battery in then out. Not Helpful 8 Helpful 1. What can I do if my Mac is connected to something else and won't allow me to use my internal speakers?
You can open up system preferences, go to Bluetooth, and hit "Disconnect. Not Helpful 0 Helpful 0. Check your sound settings in system preferences. If that doesn't work, take it to the Apple store. Not Helpful 7 Helpful 0.
Find out how to connect your MacBook to a TV
Unanswered Questions. What do I do if my sound output and input on my Mac won't respond? Answer this question Flag as Flag as Include your email address to get a message when this question is answered. Already answered Not a question Bad question Other. Tips Sound hardware failing is a very common issue for many different MacBook models. The only reliable fix is to get the MacBook serviced by Apple. This is usually due to a faulty logic board. Edit Related wikiHows. Article Info This article was co-authored by our trained team of editors and researchers who validated it for accuracy and comprehensiveness.
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