first theory (in the first JPG) what happens in a functioning "Gator", One-Player-Game, the first ball is played, lost, enters the Outhole --- along my numbering stuff happens. In short "pink/rosa": The ball enters the Outhole - the "Ball Return Relay (Outhole-Relay)" pulls-in, stays pulling for a while, throws its switches (also makes the motor to run). "Brown": The "Player-Reset-Relay" pulls-in, stays pulling, throws its switches. "Green": The ball is kicked over to the shooter alley and the Ball-Count-Unit steps up. The plunger on the firing Ball-Count-Step-Up-Side closes the E.O.S-Switch and the Player-Unit resets completely (to position-zero (((below position-1 is Player-1 plays))) ). "Blue": The ball traveling to the shooter alley closes (below the apron) the Through-Switch - the Player-Advance-Relay pulls, the Player-Unit steps from position-zero up to position-1.
Now the player (is player-1) can launch the next ball.
Write when You want to discuss "my numbering".
Troubleshooting - see the second JPG - side by side the snippets of schematics "Gator" and "Bally Hoo". Toggle-off the pin and unplug the main power cord (Safety Reasons) - establish an permanent Jumper-Wire (my dark-red line). Plug-in, start a ONE-Player-Game - can You play a ONE-Player-Game ? If "Yes": We have learned "there is a good connection through the Player-Up-Unit in a ONE-Player-Game. If "No": We have learned "at least one fault is in the unit.
(((IF, if You have "Yes" You then may do a second test - see my "gray jumpering" - we will learn about the original connecting wire "Player-Up-Unit to Coin-Unit for Player-One"))). Greetings Rolf
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