My new Flipper Fair project has a relay in the back that isn’t on the schematic. It isn’t on the picture of the back posted at IPDB, either. It doesn’t match any of the other relays in the game- made from different materials.
It is connected to the add a ball score adjustment. So, something extra was supposed to happen when the add a ball score was reached. The wires are cut. I haven’t found anything that they might have gone to.
Any ideas what it might have been for?