@Razorstage did the service center tell you what was wrong with the amp? I am having the same problem. All of the lights turn on when I start it up. No sound out of the speakers and no sound out of the headphone jack. The tuner turns on but does not receive a signal either. I do not hear anything out of the amp (no clicking like @bmeeks is hearing). Did a factory reset as well, which did not resolve the problem.