How can I catch my receiver to work through my speaker jack?

I hold try several times to plug in my earphones in my speaker jack and still can't find the headphones to work?Do I entail to change a setting ?What do i do?

I enjoy a Compaq 8000 series pc.Thanks.

How can I catch my receiver to work through my speaker jack?

Some Computer Require a Power Speaker or they will not work. What you have need of to do is get Power Speaker beside a Headphone jack so you just plug into them. I hold a set that I used to use....

What happen is the Speaker jump Quit and the sound dance though the headphones.
Can you listen to music/audio while the phone are unplugged? maybe your earphones don't work...please explain a little more.