I did a quick search and couldn't find what I was looking for. I turned my amp on today and went away for a second and when I went back the power light wasn't on. I remember it turning on at first, but I'm not 100% sure. I haven't changed tubes or done anything drastic. I check all cables and power sources with no help. I checked the fuse and it had some brown marks on it. I'm hoping it's the fuse. I'm taking it to Guitar Center tomorrow. Any suggestions as to what may be wrong?