hi my sony system has worked fine for about a year then suddenly i cant get sound from it when i try to change sound field i just get stuck on headphone channels when theres none connected no matter what i do i can get away from the headphone setting please some 1 help?
This is caused by bad solderings on the amplifierboard.
Resolder the connector for the wire to the headphone board. Also check the solderings for the coils and power capacitor.