Pioneer receiver protection circuit
I have a Pioneer SX-828 with the protection circuit cutting out. I am a low-skill amateur tech, and I cant seem to hit a good repair. Doesn't seem to be a heat issue - may run continuously for two weeks or more, or cut in / out on initial turn on. I have replaced most of the transistors on the protection board and the power transistors for the 35v output on the power supply. Any experience or suggestions what I should try next?