stevem Messages: 4730 Registered: June 2004 Location: NY
Senior Member
For now I would unplug the effects board and on the second small molex connector on the 5066 board, unplug that and then jump pin 1 and 2 of that connector.
This will then be the same set up as a k250-1 which has no effects and then allow you to prove out the rest of the amp.