Sega Master System Model 2 Switchless Region Mod Install Guide

Work in progress. Will be updated to include my bespoke kits.

This guide will show you how to install a switchless region mod into a Sega Master System model 2 which will allow the console to switch between 50Hz and 60Hz video output.

Mod Pinout

Solder Map

Sega Master System 2 – PAL / IC BD M4jr / 171-5922-A

Sega Master System 2 – PAL French RGB / IC BD M4Jr. VA1 / 837-7275 / 171-5926-A

Coming soon.

Sega Master System 2 – PAL / IC BD M4 Jr PAL 2M / 171-6395A