What do you recommend I do? replace the diode and the mosfet? and that's it?
the circuit diagram does not have any?

I have not reversed the polarity! the amp sounded! it may be a short circuit?

Here are the photos! Does anyone know what is the switch on the motherboard?

hello my name is Stefano, I'm from Genoa, Italy. I inherited a phenix gold ms275 white version, namely rev-h. The amplifier was wonderful on medium to high frequencies. One day, while driving, following an off something must have happened, a short circuit I suppose, and he stopped playing. open the ...