I have a Blaupunkt PA2150 2 channel amp. Just recently it stopped working, I was hoping something minor was wrong so I took it apart trying to fix it. Im no electrical engineer but I have taken a basic circuits class so I am familiar with most of the parts. Anyways when plugged in the amp power led barely lights up, you can only really see it in the dark. There are also six RFP70N06 mosfets on the board that get extremely hot after the amp has only been on for a few seconds. One even has a little discoloration on the back side from the heat. This doesn't seem normal. Other than that everything looks great on the board. No burnt spot, the caps and resistors look great. Nothin else gets hot either. I have looked for a schematic of the amp but haven't had any luck. Was hoping maybe someone could help me narrow the problem down. Thanks