A center tap (7 v) 1 center tap (7v) B center tap (7 v) 2 center tap (7v) C 7 volt 3 7 volt D 7 volt 4 7 volt E 5 coin mulp pc F speaker 6 reset credit mult PC H speaker 7 J coin (cred mult) 8 K (tilt) 9 credit switch L one player 10 two player M move left 11 move right N move up 12 P 13 R 14 move down S RGB Ground 15 common for controls T RGB Red 16 RGB Green U RGB Blue 17 RGB Neg Sync V 18 +5volt (cred mult pc) W 12 Volt 19 12 volt X 12 Volt 20 12 volt Y center tap(12v) 21 center tap (12v) Z center tap(12v) 22 center tap (12v)