I have a Zenith Big Screen TV that the sound doesn't work. I hooked up surround sound speakers and the was working fine. Then a friend re-routed the wires and everything worked until the next day when he pushed the source button an the front of the set and the sound went out, and i can't get it come back on. If there is anything that I can do to get the sound to work again please let me know.
You're saying that you hooked up speakers to an external audio source, like a home theater receiver... not the TV, right?