Mega Drive Boot (Sega Mega Tech) Updated Mar 15, 2026 · 9 min read · 0 viewing Log in or register to read the full article. Previous Mega Drive Circuit (Sega Mega-Tech) Here are some useful pin diagrams and details for checking parts of the Mega Drive System 315-5313 (... Next Mega Drive 68k (Sega Mega-Tech) If you are suspecting issues with the Mega Drive system and want to check the 68k operation, this gu...