(Topic ID: 87887)

Gottlieb EM coin door repro quality - like, what's your opinion man?

By dasvis

9 years ago


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  • 29 posts
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  • Latest reply 9 years ago by ccotenj
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#17 9 years ago

Put the backing bar in and attach it with one Allen screw in the top hole. Then fit the door usinng another screw in the bottom hole, don't tighten the screws, just a few turns in will do. When the door is on, remove the top screw and put 'em all in though the hinge. It's a piece of cake.

#22 9 years ago
Quoted from EMsInKC:

And I have no idea how I did forget that. The source of much misery and frustration.
I had a Big Indian that occasionally would light up two adjacent match numbers, which I figured was just an alignment problem. I checked and checked it, never did find it. Wiper aligned properly, nothing apparent that would connect the traces together.
But I was trumped by a friend of mine who had three adjacent match lights light up on an Atlantis. I couldn't even begin to figure how that was even possible.
What also makes that unit a mess is that it is often used to control other features on the game. Operators in AAB only places took it out and never put it back, so you have to find one.
Not one of Gottlieb's better moments.

My Pro Football was lighting two ball inserts at once. The stepper was, as with yours, stepping to every contact perfectly, and I'd cleaned the circuit board as well. It turned out to be some sort of conductive material between the copper conductors. I couldn't work it out for a while, but in the end and in desperation, I cleaned the Bakelite between them with the edge of a screwdriver. Hey presto, problem cured, and it hasn't returned. There isn't much of a gap between those Copper conductors, so I guess a little bit of contamination is enough.

#24 9 years ago

I reckon Gottlieb must have had a good reason to design it like that. Maybe it gave a better feel, maybe it allowed for a range of adjustment and the springiness of the wire evened it out, maybe it allowed for shorter cable runs to the coils, making the flippers a bit more energetic. I really have no idea why it was designed like that but I'm sure there was a good reason. It certainly wasn't cost, it would have been mach less expensive, and much simpler, to put the switches on the cabinet sides, right by the buttons. As they made the games less expensive to manufacture, that is exactly what they did.

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