For such game-specific device you may need to consult the original service/owner manual for the cabinet. If you don't have it try ebay, else you will have to sit out and hope that A) someone here owns the original game and B) knows how to do this. It will be a function in the BIOS of the game that programs it, not the coin mech itself I would have thought, so it's irrelevant what coin mech you've got. Have a look using the 'searc function and you may find advice on modifying coin mechs to accept tokens, or alternatively swap your coin mech out for a comparitive mech which can be set to accept any disc-shaped object and hence, any coin or token.