If you score 1000 points as usual on other places, then check the spinner switch under the play field. If you don't score 1000 points anywhere, check the 1000 point relay switches.

Actually, I would think that there is a MAX bonus switch stack that changes state when the bonus unit hits the maximum position. There is probably a switch to control the spinner light (which is working) and a make brake switch that will transfer the spinner from one score feature (100 point relay) to the other (1000 point relay).

But I would have to check the schematic to be sure.

You're probably right Jack...I didn't think about it scoring the hundreds points, or that it was scoring bonus points at all. I took it as it was not scoring any points. Good point! lol.