(Topic ID: 209789)

Photos: 1973 Gottlieb King Pin Repair & Restoration Thread

By goldenboy232

6 years ago


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#4 6 years ago
Quoted from goldenboy232:

I brought home the King Pin over the weekend. I plan to do a full cabinet repaint eventually. For now, I want to get it working 100% and will thoroughly go through it mechanically before cleaning and restoring the playfield.
For starters, I am wondering if I need to disable the coil inside the coin door? It's still got power going to it and when I press the start button the reels (slowly) reset (I need to service them -- a couple of them struggle to get to zero but eventually do) but it doesn't kick the ball out right away. The score motor keeps running until I wiggle the little bar (shown in the picture below) inside the coin door and eventually get it to the right position for the motor to stop. Then the ball kicks out for Ball 1 and it goes through a normal game (Balls 1-5, then to Game Over). What do you think is causing that, and what role is that coin door playing in that?

If you wiggle the bar to get it to finish setup/stop the score motor switch from running... then sounds like a stuck on coin switch... remove the coin mechs and inspect, sometimes the trip wire is making contact to the contacts (fish paper gone) and will cause continual "coin up". And yes, disconnect the lockout coil, they are usually fried

#6 6 years ago
Quoted from goldenboy232:

Is removing the mechs easy? Never tried. I may just disable that coil.

there are two tabs to pull down and then the top of the mech swings out to the left and then pull up. You can see the tabs in your pic, one is just above and to the left of your finger. There is another tab on the inner side of the frame (near inner door), push both down and swing mech out and up.

#7 6 years ago

the pic

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#10 6 years ago

deleted post

#11 6 years ago

My initial thoughts still stand, you probably had a jamed coin switch

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