'''This is the correct behavior!''' The assumption is if you plug in the headphones (left plugged in) you don’t want the internal speakers to also be active. This is how most PC’s work, and how all Mac systems work. My TV’s and stereo also work this way.
Here’s a closer look on how the headphone jack works
[image|1818467]
The simple act of plugging in the plug breaks the short to the internal speaker lines.
If you want an either or both with the headphones plugged in you’ll need to get your self a pair of wired (using either the headphone jack or USB plug) or wireless Bluetooth speakers (with the headphone jack you’ll need a spitter). You’ll then need to manually to enable which you want on. With Bluetooth the menu bar can be used.
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In your case I’m suspecting the switch contacts within the jack are messed up. The easiest way to fix this is to replace the jack.
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In your case I’m suspecting the switch contacts within the jack are messed up. The easiest way to fix this is to replace the jack [https://www.thebookyard.com/product.php?cPath=34_165_470&products_id=16058|iMac 21.5" Headphone Socket and Cable (14/15)]
'''This is the correct behavior!''' The assumption is if you plug in the headphones (left plugged in) you don’t want the internal speakers to also be active. This is how most PC’s work, and how all Mac systems work. My TV’s and stereo also work this way.
Here’s a closer look on how the headphone jack works
[image|1818467]
The simple act of plugging in the plug breaks the short to the internal speaker lines.
If you want an either or both with the headphones plugged in you’ll need to get your self a pair of wired (using either the headphone jack or USB plug) or wireless Bluetooth speakers (with the headphone jack you’ll need a spitter). You’ll then need to manually to enable which you want on. With Bluetooth the menu bar can be used.
+
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In your case I’m suspecting the switch contacts within the jack are messed up. The easiest way to fix this is to replace the jack.
'''This is the correct behavior!''' The assumption is if you plug in the headphones (left plugged in) you don’t want the internal speakers to also be active. This is how most PC’s work, and how all Mac systems work. My TV’s and stereo also work this way.
Here’s a closer look on how the headphone jack works
[image|1818467]
The simple act of plugging in the plug breaks the short to the internal speaker lines.
If you want an either or both with the headphones plugged in you’ll need to get your self a pair of wired (using either the headphone jack or USB plug) or wireless Bluetooth speakers (with the headphone jack you’ll need a spitter). You’ll then need to manually to enable which you want on. With Bluetooth the menu bar can be used.