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Technical Documentation

Below are service manuals, schematics, and other technical documentation for the Sega Genesis related systems.

1 min readUpdated Oct 9, 2026

Below are service manuals, schematics, and other technical documentation for the Sega Genesis related systems.

Genesis

Sega CD

CDX

JVC X'Eye

32X

Amstrad Mega PC

Sega Tera Drive

Keep exploring

Genesis:Motherboard DifferencesThere were numerous motherboard revisions of the standalone Genesis and Mega Drive consoles. This p…Genesis:Buying GuideSega produced a wide variety of models and revisions of their 16-bit hardware, and it can be overwh…Genesis:ASIC InformationThis page serves to outline the various ASIC revisions used in Genesis/Mega Drive consoles. Yamaha …Genesis:Toshiba ASIC PinoutThe following is a partial pinout for the Toshiba ASICs used in VA2 and VA2.3 model 2 Genesis conso…Genesis:315-5685 InformationThe Sega 315-5685 ASIC. Some model 2 Genesis consoles with the VA2.3 board revision use the 315-568…Genesis:List of Games Using the EXT PortThe below is detailed information on the EXT Port: Availability of the EXT port between various Seg…