I have a Randall RH100 G2 solid state head with a speaker deck. I have had it in my shed for a few years as my house was too small for me to set up a guitar space but as I packed down the spare room to advertise it as a studio space for our sale I decided to plug in my Explorer and have a crack. It turns on, but when the volume is cranked to full it is really, really soft. Is it a blown fuse? Have I done a transistor? Would really like to repair it myself if it is an easy fix.
Thanks in advance.