I bought a used Behringer LC2412 dmx board. It powers up, but does not work with my dimmer pack. It appears that whoever owned it replaced the 5 pin connector with a 3 pin. I suspect that is the problem. What I don't know is if modifying the connector in this way will work if it is wired correctly, and what the correct wiring is. Currently, pin 1 is green, pin 2 is red, and pin 3 is blue. If the modification can be done, is this the correct wiring sequence? I would hate to unsolder it only to find that the wiring was correct. Any help would be appreciated.