Grand Slam
Gottlieb, 1972You're currently viewing posts by Pinsider sodacrack.
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I recently picked up a 1972 Grand Slam Project. It needs a bunch of work, but is worth bringing back to life. While cleaning the contacts, I noticed a wire is disconnected from a contact on the score motor. Can someone verify which contact I should connect it to? I think it is the one on the far right in the photo. I currently do not have schematics
Quoted from fredsmythson:It's probably a wire that shares a switch lug with another wire. Look for a switch lug that has bright solder, which might show a broken, shared solder joint. Also, other Gottlieb machines of the same era might use the same wiring color for the score motor switches. So, using other available schematics might help with the wire location...
I have looked at the switch lugs to help indicate where it was disconnected, but it is not clear.
Quoted from pinhead52:Is the game functional/playing? If we knew what was broke you can then find the lead on the diagram. or somebody that has this game.
I am still checking and cleaning contacts and steppers. It has been sitting in a warehouse for about 20 years and everything needs to be gone through. I should be able to try a start up this weekend
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Cincinnati, OH