Genesis:Genesis Mods Wiki





The Sega Genesis — known as the Mega Drive outside of North America — is a 16-bit console from the fourth generation of video game consoles. The console was first launched in Japan on October 29, 1988 followed by North America (August 14, 1989) and Europe (September 1990). It offers backwards compatibility with the Sega Master System library through the Power Base Converter add-on (or through a flash cart). The console has three main model revisions: the Model 1, Model 2, and Model 3; plus a portable version (Sega Genesis Nomad). Many third party consoles were later released later in the Genesis' lifespan and well after it.

CD game support was supported with two models of the Sega CD add-on, two combination models (Wondermega and X'Eye) and one semi-portable combination model (CDX/Multi-Mega). 32-bit game support was added with the Sega 32X add-on in 1994. Online play was also supported with some titles using the XBAND service in North America or the Mega Modem (Sega Meganet/Net Work System service) in Japan.

Despite massively underperforming in Japan due to heavy competition from NEC's PC Engine and both Nintendo's Famicom and Super Famicom, the Genesis was Sega's most successful console outside Japan, becoming a massive hit in most of the world and leaving behind a massive legacy as one of the most popular and fondly remembered video game consoles of all time.

General Information

 * Creating Game Backups
 * Genesis:Playing Game Backups
 * Creating Game Save Backups
 * Applying ROM Patches
 * Genesis:Homebrew Games List
 * Genesis:Master System Games Info
 * Genesis:Model 3 Information
 * Genesis:List of Genesis Games with Save Batteries
 * List of Light Gun Games

Technical Information

 * Model Differences
 * Genesis:Connector Pinouts
 * Genesis:Region Information

General Mods

 * Genesis:Overclock Mod
 * Genesis:Region Switch Mod
 * Genesis:Genesis Controller on SMS Games

Video Mods

 * Genesis:Video Output Notes
 * Genesis:Triple Bypass Mod
 * Genesis:UniMOD
 * Genesis:DFO Crystal
 * Genesis:RGB Bypass
 * Genesis:S-Video Mod
 * Genesis:Jailbar Fix

Audio Mods

 * Genesis:Triple Bypass Mod
 * Genesis:Audio Bypass
 * Genesis:Audio Chip Notes
 * Genesis:Audio Chip Replacements
 * Genesis:Digital Audio (SPDIF) Mod
 * Genesis:Crystal Clear Audio Mod (CCAM)
 * Genesis:Preamp Fix (Model 1)
 * Genesis:Adding Rear Stereo Audio Port (Model 1)
 * Genesis:Audio Circuit Mod (Model 2)
 * Genesis:Stereo Audio Mod (Model 3)
 * Genesis:Restoring CD Audio (Model 3)

Repair Guides

 * Genesis:No Power (Power LED OFF)
 * Genesis:No Display (Power LED ON)
 * Game Cartridge / Connector Cleaning
 * Genesis:Repair High Failure Rate Tengen Games
 * Genesis:32X on Model 1 Genesis Issues
 * Genesis:Replacing Capacitors

Nomad

 * Genesis:Mega Nomad

Sega 32X

 * Model Differences
 * Genesis:32X Buck Converter Mod
 * Video Output
 * Genesis:32X Region Mod
 * 32X High Pitch Squealing
 * Genesis:Ribbon Cable Replacement
 * Genesis:Expansion Cover Information
 * Genesis:Sega CD + 32X Information
 * [[Media:Sega 32X Service Manual.pdf|32X Service Manual]]

Sega CD

 * Model Differences
 * Genesis:FRAM Mod
 * BIOS Mod
 * Genesis:Disc Burning Information
 * Disc Drive Repair
 * Genesis:Fuse Replacement
 * Genesis:Belt Replacement
 * [[Media:JVC X'Eye Service Manual.pdf|JVC X'Eye Service Manual]]
 * [[Media:Sega CDX Partial Audio Circuit.pdf|CDX Partial Audio Circuit Schematic]]