Max_power, here are some pictures from mine. Not sure this helps because:
1. Mine is set to free play, and
2. Some donut wired a toggle switch to the coin switch to simulate coins (now disconnected).
So, ignore the two wires in the grey insulation in my fingers. The plain yellow wire has been cut. leaving four wires going to the switch, red/white, yellow/black to terminal closest to front door, white/blue to middle, white to back terminal.
IMG_3048_(resized).JPG
IMG_3049_(resized).JPG
hopefully some help