500 points switches score 500,600,700,800 points. Seems to get up to 800 then slowly back to 500, 600 points instead of 500 is the most common. Score motor, 500pt relay, or both? I could probably figure this out given time, but I'm out of practice

I know some of you probably have this knowledge at the top of your heads. Asking here to save me some time guessing. Maybe I should have rebuilt the score motor area too when I redid everything else a few years ago

Yeah, scoring behaves the same for all 4 players. The 10, 100-pop, and various 1000s all score correctly. After thinking about how the 500 is just 5 pulses of the 100 it essentially has to be the 500 relay.

Thanks. I'll check the relay out tonight

Moved the machine from house to house probably got bumped out of the proper gap. Stay tuned for update

Cleaned and set switch gaps 500 point relay, more of the same. Cleaned and set switch gaps on 100 point relay, success!

During my testing I found that player 1 would not award credits on match. Players 2,3,4 were fine and awarded matches correctly.

Easy fix: blue-white wire was disconnected from player 1 tens unit/score reel. Soldered back to the 'C' point and all is well. I like it when a problem makes sense and schematics work. Fun to 'predict' and set up the match by looking at the 00-99 'F' stepper in the head during testing.