hey man, if you ever run across another one, or this one dies later on down the road, youll know what to look for. Glad you got it all fixed up.. I wonder what went bad on the board or if the connector was just crappy and that was your issue...
Did you replace or clean the couple of pins in the edge connector that burnt the pcb??? If not, you might want to do that otherwise youll be in the same boat with this boardset a little bit later on down the line.
OR just leave it alone till it burns up, and do the "pole position mod" where you take a molex connector, and solder a wires on the boardset, through the molex, to the harness of the game and viola, no more edge connector burningg...