Master System:Master System Mods Wiki



The Sega Master System is an 8-bit console from the third generation of video game consoles. Originally released on October 20, 1985 as the Sega Mark III — the third revision of the SG-1000 — the Sega Master System was later released in North America (September 1986) and Europe (June 1987). It offers backwards compatibility with the full SG-1000 library on Sega Mark III and Japanese Master System units. A later revision, the Master System II, was released in 1990 in North America and 1991 in Europe, Australia, and Asia.

General Information

 * Creating Game Backups
 * Master System:Playing Game Backups
 * Creating Game Save Backups
 * Applying ROM Patches
 * Master System:Homebrew Games List
 * Master System:Game Gear on Master System Patches
 * Master System:Game Incompatibilites
 * Master System:List of Master System Games with Save Batteries

Technical Information

 * Model Differences
 * Master System:Video Output Notes
 * Master System:Connector Pinouts
 * Master System:Region Information
 * Master System:FM Audio Information
 * Genesis:Genesis Controller on SMS Games

Video Mods

 * Master System:RGB Bypass Mod
 * Master System:Composite/S-video Mod (Model 2)
 * Master System:Jailbar Fix

Audio Mods

 * Master System:Audio Line Out Mod

Repair Guides

 * Master System:Black Screen
 * Game Cartridge / Connector Cleaning 
 * Replacing Capacitors