Posted this on another site also.Working on a 1977 Williams Cherokee shuffle alley. Can not get the game selection to work at the start of a new game. Push the Game Selection button nothing happens. On the schematics at C-9, i started tracing the circuit for the Game Selection S.U. unit. Connected one end of jumper to the yellow on the Player Up Disc. at D-10.5. From there I traced the circuit back and at all points the Came Selection S.U. coil fired. So the circuit should be good. But the problem still remains at the start of a game pushing the game selection button and nothing. What am I missing?