A friend gave me his old Sony STR-GX909ES because he got a new system. I hooked it up and it was fine, but then I just tried changing some settings and the rear speakers don't work. When you do an audio check however, sound is emitted from the two. It has to be something i pushed to stop them from playing. The manual says to fix the problem turn on/off the sound field, and select another sound mode. I have done that many time, plus allot more. It has been like this for three days now. Someone Help Me Please.
