I have this grand nearly 100 percent working. I'm down to the last issue. One of the 4th player digits won't reset on startup. It just doesn't move. However if I zero it out manually and play the game it score just fine. So it's not the coil. It is one of the digits that does not have the bakelite board. Where do you think the issue would be?

Thanks
Mike

No I have not. So I should check the test relays I take it?

I have to put it to zero. It does score correct in game mode

4th digit from the left. The 100s

Thanks guys.. it was actually a cold solder joint where the wire attached to the switch. I cleaned all the contacts until found that. Feeling my way through my first EM project. Good news is cosmetically I will have a nice grand prix.