I have a three year old kenwood receiver that suddenly for no reason won't power on. I'm not too sad because now the wife will let me upgrade. I have a surge protector, but for the recent rash of thunder storms I have just been unplugging everything until its over. Could this plugging in and unplugging have damaged it? What other electrical things do you guys know of that could damage a reciever? Power surges? Do receivers have fuses that I could just replace? It's old, but I don't want to spend a lot for a quick, cheap repair that i could do myself. It is well taken care of and is well ventilated. I'm at a loss. Anybody?