Sega Saturn 10-Pin Mini-DIN A/V Connector Pinout — RGB SCART, S-Video & Component Guide

10-Pin Non-Standard Circular Mini-DIN · Video & Monitor Ports

Interactive Connector Diagram

Click or tap any pin in the diagram below to inspect its signal assignment, electrical specification, and wire colour standard.

Click any pin to view its signal assignment, electrical spec, and wire colour.

Supported Systems / Found On — Retro Machine Hubs

This connector is used on the following retro computer systems. Click any colour-coded badge below to open its full board-level repair, diagnostic, and schematic Machine Hub:

Connector Specifications

Connector Type 10-Pin Circular Mini-DIN (3 top, 4 middle, 3 bottom pins + outer GND shield)
RGB Termination 75 Ω resistors already on Saturn PCB! Cable only needs 220 µF caps on R, G, B
S-Video Support Native S-Video Luma (Pin 8) and Chroma (Pin 9) on all PAL & NTSC models
Power Output Pin 1 = +5V DC (for SCART Pin 16 RGB blanking via 180 Ω resistor)

Full Pin Assignment & Wiring Reference

Pin Signal Name Direction Electrical Spec / Role Wire Colour / SCART / Adapter Target
1 +5V DC Pwr +5.0 V DC Regulated Output (~100 mA max) SCART Pin 16 via 180 Ω resistor
2 AUDIO RIGHT (R) Out Line-Level Stereo Right Audio Output (from SCSP / DAC) Red RCA / SCART Pin 2
3 AUDIO LEFT (L) Out Line-Level Stereo Left Audio Output (from SCSP / DAC) White RCA / SCART Pin 6
4 CSYNC (NTSC) / +12V (PAL) Out NTSC Saturn: TTL CSYNC (use 470 Ω + 220 µF) | PAL Saturn: +9V/+12V DC! Universal SCART: Leave NC & use Pin 8 Luma for Sync
5 ANALOG BLUE (B) Out 0.7 Vpp 75 Ω Analog Blue Video (75 Ω on motherboard) SCART Pin 7 via 220 µF capacitor
6 ANALOG GREEN (G) Out 0.7 Vpp 75 Ω Analog Green Video (75 Ω on motherboard) SCART Pin 11 via 220 µF capacitor
7 ANALOG RED (R) Out 0.7 Vpp 75 Ω Analog Red Video (75 Ω on motherboard) SCART Pin 15 via 220 µF capacitor
8 S-VIDEO LUMA (Y) Out Luminance + Sync (Best universal sync source for PAL + NTSC RGB SCART!) S-Video Pin 3 (Y) / Universal SCART Pin 20
9 S-VIDEO CHROMA (C) Out Chrominance Subcarrier (75 Ω terminated) S-Video Pin 4 (C)
10 COMPOSITE VIDEO (CVBS) Out 1.0 Vpp 75 Ω Composite Video Output (Outer Metal Shell = 0 V GND!) Yellow RCA (Outer Shell -> All SCART Grounds)

Building a Universal Sega Saturn RGB SCART or S-Video Cable

The Sega Saturn outputs some of the sharpest 240p and 480i RGB and S-Video signals of any 32-bit console via its rear 10-pin Mini-DIN port. Unlike the Mega Drive, the Saturn motherboard already includes the 75 Ω series termination resistors on the Red, Green, Blue, Luma, Chroma, and Composite lines right after the video encoder — meaning a Saturn RGB SCART cable only needs 220 µF AC-coupling capacitors in series on R, G, and B.

  • Do NOT add extra 75 Ω resistors on R/G/B: Because the Sega Saturn already has 75 Ω series resistors on the motherboard before the 10-pin Mini-DIN, adding another 75 Ω resistor in the cable will cut brightness in half! Only place a 220 µF 10V electrolytic capacitor in series on Pin 7 (Red), Pin 6 (Green), and Pin 5 (Blue).
  • Use Sync-on-Luma (Pin 8) for Universal PAL/NTSC Compatibility: Wiring Pin 8 (Luma) to SCART Pin 20 gives clean, interference-free sync on every NTSC and PAL Saturn without risking the PAL Pin 4 +12V trap.
  • Outer Metal Shell Ground: Just like the Genesis Model 2 9-pin Mini-DIN, 0V Ground is carried on the outer circular metal shield of the 10-pin plug.

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