Audio Circuit (Sega Mega Drive) Updated Mar 15, 2026 · 8 min read · 0 viewing Log in or register to read the full article. Previous AV Pinout (Sega Mega Drive) The Mega Drive / Genesis 1 has the exact same port, cable and AV pinout as the Master System 1. It a... Next Game Cartridge Pinout (Sega Mega Drive) Below is the pinout to the game cartridge.