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Joust & Defender Battery Kit Upgrades

Joust & Defender Battery Kit Upgrades About 6 years after I bought them, I finally got around to installing Lithium battery upgrade kits into my Joust and Defender systems. Most Williams systems of this era were equipped with a 3 pile AA battery pack to maintain system configuration setting and the high score table. The issues with this...
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Defender Image Issue

Defender Image Issue My Williams Defender system is currently displaying it’s video image as follows: Jonathan at Arcade Repair Tips seems to think it is a board issue and suggested reading an article on MikesArcade website on general issues with Williams systems. He also suggested reaching out to Ken/YellowDog on the...
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