I have one of the original Tracker cnc tables. The program begins properly, the steppers move correctly, but the torch no longer fires. Usually this means the relay has burnt out. In the past I would replace the relay and I would be back up and running again. Not so now. I am not an electronics person. My ideal would be to find the source for the control board and buy a new one while I have the old one sent out for someone to figure out what is wrong. Anybody have a schematic for the controller board or know where i can get a replacement.