Hey Brymus,
I did receive the schematic from Loud Technologies, they were very helpful.
Just email them @ misupport@loudtechinc.com, along with the Model and Serial #. They will send you all of the schematics if they have them.
I'm sorry but I agreed not to post the schematics without permission.
The amp I'm repairing uses the TDA2050, which runs $1.79 at Mousers but I'm going to try it locally first.
Let me know if you have trouble getting the schematics from Loud.
Raja

Hi JM,
Thanks for the reply. I have searched for the schematic to no avail but was able to make contact with Loud Technology whom now own Crate. They will send me the schematic if they have it. The amp does have an effect loop. I'm pretty sure I know which part was replaced before and if not to pricey I pop another one in. I'll take some pic's tonight and post.
Again, Thanks for the help
Raja

Hi all,
I'm new to this forum and to SS amps in general.
I've built a couple of tube amps and have a friend whom wants me to look at his Crate.
The amp works but the volume is about 1/2 watt, very low. He had it repaired by a local tech but this repair only lasted about 8 months. It now is showing the same symptoms as before. I'm thinking it might be the Mosfet, on SS amps this is the device providing the power amplification isn't it? Not having the schematics makes it hard to troubleshoot.
Any help you all can provide is greatly appreciated.
Thanks
Raja