I have more than 6 Line 6 amplifiers. Two of them don't turn on. I want to look for a Schematic so that I can try to repair it myself. Providing Schematics is standard practice for all amplifier manufacterers. Line 6 needs to post them. How can I fix the amps. In this case both are Line 6 IV 15 watt amplifiers. I didn't see a fuse in them. If they have a fuse please let me know where it is. Also, if the Transformer is the problem, where can I get replacement parts?