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Modify ROMs on Coleco Cartridge


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It's possible, but there's simpler solutions. Most ColecoVision ROMs also include a required logic chip leading to the "chip select" line. You can add this yourself, but it might be a bit messy. Alternatively, I have a PCB available to replace the original PCB, if you're interested.

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I'm not too interested in the $129 multi-cart, GroovyBee, because if I were to spend that much $$$ on a retro system it would be on my Ataris...


No probs. I only suggested it because you didn't say if you already had an EPROM programmer, UV eraser and soldering iron. Which are the 3 things you'll need to go down the PCB route.

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