I have a valvestate 8080 that doesn't turn on. I pulled a bonehead move when I (this is / was my setup) - Guitar plugged into Wah then Overdrive then Distortion and then a Boss DD2-Delay with 2 outputs, one for "direct out" which went to a Peavey Deuce and then the "out" to the Valvestate 8080). It worked for a bit until I used the delay a couple of times. It then went dead and that's it. No lights / power etc. Tried different power cable and verified well known working wall plug. I'm new to amps but I'm assuming that the fuse would be the first thing to look for from what I've seen on the posts. What would be the next step or two if the fuse is ok?