Today I wired up the Stepdown transformer and now the game has power for the 1st time in at least 6 years (and probably many more).
Check both transformers have correct voltages.

If I press the coin switch the score motor turns and stops but the current problem is the lock relay is not energising so currently trying to track down why.

I was excited to see that score motor run for the 1st time in who knows how long