I have acquired a very nice MTH 30-4036-1 N&W J #612 that is totally dead. I understand these had a very common board problem. Does anyone know where to buy the board and what they cost. Also does the motor run on AC or DC ? If the cost of the board is prohibitive I am considering wiring the motor direct to the pickup rollers so it will just run forward. Then I assume I can also wire the headlight and smoke unit direct as well. Would appreciate any input on these ideas.