I tried my amp the other day, and it wouldn't work. I took it apart, and I had blown a fuse. So I bought the right kind of fuses (I'm sure of that) and twice, when I put in a new one, plug in my amp, and turn it on, the fuse starts to glow and blows out within three seconds. Does anyone have any suggestions? The amp is a Carvin PB100, and it uses 250v 5amp fuses.