I just recently purchased a 4 player NBA Jam arcade cabinet and it came with a 4 player Teenage Mutant Ninja Turtles JAMMA board. everything works great except I can not figure out how to get players 3 and 4 to work for turtles. The coin slots only give credits to players 1 and 2. I know this is the 4 player version not the 2 player. players 3 and 4 say insert coins but I cannot give credit to these players. Any help on the matter would be much appreciated.

