This is my first post. I am really new to fixing machines so please be nice. I have a 1964 Riverboat by Williams. When the ball strikes any single point scoring mechanism (sling shot, bumper, etc), the points do not register. All other scoring options for 10’s and 100’s do work. I have opened the game up and looked inside but can’t seem to find the reason why. I looked for open switches that may be touching constantly (I found this to be happening on a Gigi machine I own) causing the score to not be registered. Anybody know where I should start or inspect first?

Thanks!

Thanks! I’ll take a look

I have started a game and when pressing a 1-point bumper, nothing happens. I can manually trigger the 1-point relay and it scores properly. The problem seems to be when I hit the 1-pointer bumpers, no signal is sent to the 1-point relay to spin the score reel. I think I’m making sense here. As mentioned earlier, there might be a broken wire somewhere. I don’t think the solenoid is shot since it does trigger the point when I manually activate it. Does this help diagnose it?

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Well, I have an update. I unplugged each of the Jones connectors and examined each one for looseness. Not finding any, I push them back in and guess what?.......it started counting the single digits again. I swear that’s really weird but that’s what happened. Now, I have to figure out why GAME OVER doesn’t light up at end game and not Match number
lights either

Plug is “on” in back box. I have the schematic sheet that you posted. What exactly am I looking for? Here is a pic of the match being in the “on” position

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Is the no match switch in the bottom of the cabinet?

Never mind. I start playing around with the Jones connectors and the match light starts working. I guess it goes back to “clean it first”? Lol

I took some sand paper (600 grit) to the male posts. I think that helped.

While I’m on the subject, what’s the best way to clean the advance step wheel? The one that is supposed to advance through the cards once the swinging target gets hit or the bumper behind it if you miss. Mine seems to be sluggish and doesn’t reset completely to advance to the second “card”

This is great information! Thanks for all your help!