Picked up this amp cheap at a local music store. Does anyone know how to repair a reverb as it does not work..or where I might find information on how to do it? I may just use my Hardwire RV-7 and just say to heck with it. That is what I use with the Peavey Bandit 112 because I do not like the reverb on it..but I would kind of like to hear what the verb sounds like on the Crate.