My Grandaughters Boyfriend finds out I’ve been building Amps in my garage WantS to know if I can look at his dead MusicMan. Story is they were jamming and decided to hook up his working Amp to a 410 cabinet, not really knowing about speaker loads and what not. He says the house circuit breaker tripped. When they restored power and hooked the Amp back up to the onboard 212 speakers, no sound. Later he had “a friend” look at it who advised that the Filter Caps were bad, needing replacing. This is the Amp On visual inspection I find this in the Dog House... Isn’t it missing 2 Filter Caps? I found a pic of a cap job on the web... I hooked the Amp up to my LightBulb Limiter and it lit up bright with no dimming indicating a short. Getting ready to replace the 100uf 450’s. This is my first real Troubleshooting repair. I just started down the New Amp Startup Procedure And got this far. Any input of any kind much appreciated!