I have a Pyramid that is scoring wrong.

In Pyramid, drop targets score 1K for every rollover made. Mine is over-scoring.

I tested how many 1000s I score based on which rollovers are made to try and find out which one(s) are shorted as always made.

If the only the white OR blue rollover is made, drops score 2K. If only red OR green rollover is made, drops score 3K. If only the yellow rollover is made, drops score 4K.

I think this tells me that blue AND white rollovers are always counted as made.
Although, yellow giving 4K scoring must mean something else is going on there too.

I have looked carefully at the sequence bank, especially blue (3B) and white (4B) rollover relays. I don't see any leaf switches or lugs touching each other.

I have looked at the score motor closely and don't see any lugs, leaf switches, or "tuning fork" pieces shorting.

What else do I need to look at?

The end of ball bonus is over-scoring too.

Here is the relevant part of the schematic:

PyramidSchem.PDF

Thanks for the page from the manual, I don't have a manual for this game. My score problems are different than 3/5 ball differences, though. What I did see interesting on that page is that drops should score 0 if no rollovers are made. I wondered if that should be the case. Mine always score.

The problems occur on both players.

OK, thanks. I should be able to look at it this weekend.

I was referring to the note near the bottom of the manual page about testing the game by hand.

Thanks for the manual page. The good thing now is that I do understand the logic of how this circuit works for drop target scoring and bonus scoring. So I learned something, even if I haven't fixed the game yet.
The drop target control switches are all opening, a different one at each of the five motor positions.
The NO rollover relay switches are open unless the rollovers are made.
Haven't located the short yet.

With the playfield unplugged, I still score 1000 or two if I manually operate (F), the drop target score relay.
I should get nothing, with no rollovers made, and indeed, the rollovers unplugged and out of the circuit.

In the circuit above, scoring pulses of 5 per 1/3 motor revolution come through motor 1A. For each of the 5 motor positions, one of the motor "drop target score control switches" which are in a series is open. This stops the scoring pulse from reaching (F) and therefore (L), 1000 point relay, unless one or more rollovers are made, creating an alternate path to (F), (L) via 1B, 2B, 3B, 4B or 5B, by going around an open motor switch.

With the rollovers out of consideration, due to the playfield being unplugged, my problem is with this series of "drop target control switches." Or perhaps in a wire bundle going from the score motor to (F)?

I have looked at the score motor closely repeatedly with a bright light to try and see a short. I unhinged it and unplugged it to try and see all sides of it. Any more advice/tips?
I'll keep at it.

I fixed the scoring problem. I was turning the score motor by hand watching the 1A scoring switch and the drop target control switches and trying to make sure the timing was right. It was essentially impossible to not have 1A and 2C closed at the same time in the position when 2C opens.

Then I noticed that the 1A switch stack was in the long position instead of the short position. Changing that fixed the issue.

I don't remember if I ever had that stack off to better get at the contacts and then might have put it back together wrong. I might have. Maybe I'll blame a previous owner.