I have a problem w/ my Ampro 4600. It worked fine last night-I came in this morning to crank it up for the Sunday Ticket and...nothing. I unplugged it, pulled the main fuse. The fuse was fine, re-plugged and checked all the power cables. When I turned it back on, it worked, but then shut down after about 1/2 hr. I pulled the main fuse again- the voltage selection card that holds the fuse(s) had a bit of burn at the metal contacts, but the fuse was fine.. Re-powered, and it activated, but it shut off right away. The voltage selection card seemed to have a bit more discolor. Next try- nothing. I was thinking that the voltage selection card is kinduva relay switch that could be bad; but after reading several posts concerning Ampros and power, I'm more concerned than ever. Could anybody out there lend me some sage advice as to what I'm possibly dealing with, and any solutions? Any help is greatly appreciated.