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Putting a custom EPROM on an Atari 800 cartridge

posted Mar 24, 2013, 7:03 PM by Troy Cheek   [ updated Mar 24, 2013, 7:04 PM ]
Chris Osborn needed a SALT II diagnostic cartridge for his Atari 800.  He didn't have one, but he did have an EPROM burner.  He bought the cheapest ROM cart he could find and went to work.  To quote:

It turned out to be a pretty simple mod and surprisingly it actually worked on the first try! I only needed to cut 3 traces and add 5 jumpers along with sticking on a 28 pin socket. If you wanted to it could probably be done by piggybacking a couple of 28 pin sockets and doing the jumpering between them with no need to cut traces on the PCB.

Unfortunately burning the self test cartridge only told me what I already knew, the color on the Atari 800 doesn't work. Still no closer to figuring out specifically what component has gone bad.

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