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ColecoVision modding wiki

Explore ColecoVision modding, repairs, homebrew, hardware upgrades, and technical references. Find a guide for your console and follow the steps.

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The ColecoVision is a console from the second generation of video game consoles. The console was launched in August 1982 in North America followed by a launch in Europe in July 1983. The ColecoVision was known for its impressive graphics and sound capabilities relative to its competitors and offered arcade-like experiences in the comfort of players' homes. Three expansion modules were created for it. Expansion Module #1 allows playing of Atari 2600 games and controllers (which resulted in a lawsuit), Expansion Module #2 is a steering wheel and gas pedal combo, and Expansion Module #3 converts the ColecoVision into a Coleco ADAM computer with a keyboard, cassette drive, 64KB of RAM, and a printer. Coleco ended support of the ColecoVision by the end of 1985, and left the video game market entirely. A large homebrew scene for the console began to emerge during the late 1990s and early 2000s, with the console seeing a large number of MSX and SG-1000 ports and even a new expansion module, the Super Game Module.

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ColecoVisionColecoVision:5V VRAM ModThis is an advanced mod. If care is not taken while removing the original VRAM chips, multiple solder pads and traces can be lifted, w…Updated Oct 9, 2026ColecoVisionColecoVision:AV ModThe only audio/video output that the ColecoVision possesses is RF, but it can at least be modified for composite video and audio out. …Updated Oct 9, 2026ColecoVisionColecoVision:Connector PinoutsCartridge Port This connector has 30 pins and has a pin pitch of 2.54 mm (industry standard). Note: Odd-numbered pins are towards the …Updated Oct 9, 2026ColecoVisionColecoVision:Garbled Graphics FixLines on sprites.Credit to ArcadeUSA. Scrambled spites A common issue with the ColecoVision is that sprites appear to be corrupted eit…Updated Oct 9, 2026ColecoVisionColecoVision:General TroubleshootingBelow are common issues with the ColecoVision and their solutions. Garbled Graphics See the dedicated Garbled Graphics Fix page. Offic…Updated Oct 9, 2026ColecoVisionColecoVision:Homebrew Games ListBelow is a list of homebrew games, ports, and prototypes for the ColecoVision. Because the ColecoVision shares hardware with several o…Updated Oct 9, 2026ColecoVisionColecoVision:Region InformationAll ColecoVision games of any region will work on any region console, as the ColecoVision has no regional lockout. However, many games…Updated Oct 9, 2026ColecoVisionColecoVision:SchematicsBelow are schematics for devices related to the ColecoVision and Coleco Adam. These files were mostly sourced from the now-defunct The…Updated Oct 9, 2026ColecoVisionColecoVision:Video Output NotesAs with many game consoles of its time, the ColecoVision only outputs RF and must be modified for any other video output (except for F…Updated Oct 9, 2026