Grand Prix
Williams, 1976I have this grand nearly 100 percent working. I'm down to the last issue. One of the 4th player digits won't reset on startup. It just doesn't move. However if I zero it out manually and play the game it score just fine. So it's not the coil. It is one of the digits that does not have the bakelite board. Where do you think the issue would be?
Thanks
Mike
Check the last few pages of the manual, find the contact for your specific reel and make sure it's clean and making contact properly: https://www.ipdb.org/files/1072/Williams_1976_Grand_Prix_Manual.pdf
Does the game start without the reel being reset or do you need to put it to zero before the game will start?
Quoted from nocreditdot:One of the 4th player digits won't reset on startup
Quoted from nocreditdot:4th digit from the left. The 100s
Inspect and diagnose this circuit with Alligator clip jumper wires.
Pinball (resized).pngThanks guys.. it was actually a cold solder joint where the wire attached to the switch. I cleaned all the contacts until found that. Feeling my way through my first EM project. Good news is cosmetically I will have a nice grand prix.
Quoted from nocreditdot:Thanks guys.. it was actually a cold solder joint where the wire attached to the switch. I cleaned all the contacts until found that. Feeling my way through my first EM project. Good news is cosmetically I will have a nice grand prix.
Very common on williams. Always give em a tug!
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Rochester, NY