Welcome to Seven Forums NJTeddy. Generally the way the headphone jack works is there is basically a switch inside the headphone jack that shitches off the speakers when the headphones are plugged in. This switch may be stuck. I would try playing some audio you can hear on the headphones, then slide the headphone jack in and out slowly, see if you get any audio through the speakers at all. it may just be plugging and unplugging a few times will fix it. A Guy