Archive for June, 2016

Testing the Chad’s Arcade Defender Memory High Score Save Chip

Jun 11th

Posted by Judder in The Boards

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Our very nice friends at Chads Arcade sent over a couple of their Defender High Score save chips so that I could test them on our Defender machines at Skywire And these kits are great – replacing the need to have the 3 x AA batteries, or CR2032 battery conversions on the main motherboard by…

Testing the 4116 memory

Jun 11th

Posted by Judder in The Boards

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One of the questions asked quite a lot with Williams boards is how to test the often failing 4116 memory chips Well the good news is that the 4116 shares the same 100% compatibility with the NEC D416C-2 4116 16Kx1 RAM chip, which was used on the ZX Spectrum Here’s a nice picture for reference…