I don't have an Olympics schematic to refer to but have Kings and Queens and Ice Revue.
On K&Q it has control bank relay XB as Game Over relay which controls illumination of the Game Over light in the back box. There is a switch at Motor 1A, two switches on the O relay, and a switch at Motor 2C which all need to make to actuate Game Over XB.
On Ice Revue it has control bank relay X as Game Over relay which should control end of game and de-powering of the playfield. Ice Revue does not show a Game Over lamp in the back box like K&Q did. So I'm not sure which of these will be similar to Olympics. Does Olympics have a game over lamp in the back box? In the end it probably does not matter in that the switches that need to make to activate X are the same on Ice Revue as they are on K&Q, namely a switch at Motor 1A, two switches on the O relay, and a switch at Motor 2C.
Let us know if this helps.