My Yamaha was working fine one day and then was shut off for the night and the next day produced no sound to the speakers. There is a powered subwoofer that still produces sound. I checked the protection history and there has been no history of the protection circuit being tripped. I also reset to factory settings and unplugged it for a few days with no luck. I am assuming it is a problem with the amp since the powered sub still works but I don't know what the problem is please help!!!????
Unless it is something YOU can fix, like a fuse, you should find a pro to have a look. Other possibilities include speaker wire short (but it worked yesterday + no protection!), rat gnawed wires, or perhaps even a power surge of which you are unaware. Any recent lightning storm?
There are always possibilities of power surges where I live so I have all of my equipment on surge protectors and none of them were tripped so is there a possibility it was a surge large enough to do something to just the amp in the receiver but not large enough to blow the main power fuses or trip and surge protectors. Also rat gnawed wires isn't a possibility although I have check ALL the wires for any damage regardless. any other ideas.