Need help with old machine

[duster7469]

Just came into possesion of a old pinball machine.
Chicago Coin's High Score Pool. (1971)
One of the problems I need to address is that the machine does not keep score BELOW 1,000 points.  If you score above 1,000 points the machine keeps track of scores on both one or two player reels.
I can see the relay moving and making the bell ring.
Could this be a dirty relay problem?
Any help with this machine would help. Thanks.
Darren.

[nabours]

You should go to Rec.games.pinball with this question as it pertains to a Chicago Coin Pinball. Go here and post your question  .http://groups.google.com/group/rec.games.pinball

[earlman]

Yeah. rec.games.pinball
We only do Game Plan machines because they are much more intricate than those "other" pinball machines.