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Schematics

Below are schematics for devices related to the ColecoVision and Coleco Adam. These files were mostly sourced from the now-defunct TheAdamResource.com.

1 min readUpdated Oct 9, 2026

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ColecoVision:Garbled Graphics FixLines on sprites.Credit to ArcadeUSA. Scrambled spites A common issue with the ColecoVision is that…ColecoVision:General TroubleshootingBelow are common issues with the ColecoVision and their solutions. Garbled Graphics See the dedicat…ColecoVision:AV ModThe only audio/video output that the ColecoVision possesses is RF, but it can at least be modified …ColecoVision:5V VRAM ModThis is an advanced mod. If care is not taken while removing the original VRAM chips, multiple sold…ColecoVision:Connector PinoutsCartridge Port This connector has 30 pins and has a pin pitch of 2.54 mm (industry standard). Note:…ColecoVision:Video Output NotesAs with many game consoles of its time, the ColecoVision only outputs RF and must be modified for a…