So I'm playing service at church like normal when our Peavey SP120 Catches on fire and dies. We have a back up bass amp, but its this old Trace Elliot RAH350SMX Bass preamp 700W max output. It dosent work, its has no fuses, and the main fuse cover is missng. I'm going to trouble shoot the problems on friday when I can go and get some fuses. I havent found much information on this amp, is there anything else I need to look for when I crack this thing open?