electrical problem

[dennis w]

have a2005 kama354c none of the gauges are working.found missing wire fuse could not replace so changed out fuse panel to automotive type still no gauges found a small connection box behind the dash that had a PC board inside with a broken transistor replaced the transistor still not working. found power going to the regulator but not out so replaced regulator when i stated the tractor the new regulator smoked.any help out there? does anyone have a wiring diagram that they could copy and email or send to me? any and all help is thankful. dennis w