yustr

Its very improbable that all the wires and all the speakers went bad at the same time, so I suspect its a setting on the Sony.

But just to make sure check the wires and speakers first. Disconnect everything. Then hook up one speaker to one of the front outputs. Press the "A" speaker button. Set the volume level to 1/4 way (though it probably doesn't matter) and press the test button. (You're sure the remote works?) If you don't hear a short test tone through the speaker (it will be on for only a short time as the program cycles through all the speakers) make sure the 5.1 button isn't pressed. If you still don't hear a tone try another speaker/wire set. Make sure mute isn't pressed. Still nothing? Go into the menus and follow the hook up and set up process in the manual.


HERE's the owner's manual.

Once you've determined its not the speakers/wires or the set up, hook up the TV. Run a stereo cable from Audio Out on the TV to the AUX input on the Sony. Go into the menu on the TV and set it to output to external speakers. Turn the volume up if necessary - each TV behaves a little differently. The menus will tell you if the volume control is active when sending a signal through the Output.

Now press the AUX button on the Sony and play with the volume on both the TV (if active) and Sony to assure yourself that it works.

I'm guessing its fixed but if not try another known good source - say an iPod or CD player that you know works. Get a head phone jack-to-stereo cable and give that a try. If it works - the problem is the TV. If not then its the Sony.