My son is restoring one and we have noticed a peculiar thing with the game.
The two side 300,000 rollovers on his game actually score 400,000 points. That may just be a problem undiscovered yet.
Looking at the schematic the relay is called the 500,000 Relay. There is nothing on the playfield that scores 500,000 points.
Can anyone shed any light on this? Thanks!