Super Nintendo RGB, Composite Video, & Stereo Audio Outputs

I found this info at Fil's FAQ-Link-In Corner: LinkIn: SNES pinouts. Credit goes to Jim Christy (jchristy@hplred.HP.COM). I reformatted it a little.

12-pin male 0.1"-spaced dual-sided card edge connector at the console.

1. Red analog video out (1v DC offset, 1vpp video into 75 ohms)
2. Green analog video out (1v DC offset, 1vpp video into 75 ohms)
3. Composite H/V sync out (1vpp into 75 ohms)
4. Blue analog video out (1v DC offset, 1vpp video into 75 ohms)
5. GND
6. GND
7. Y (luminance) signal for S-VHS (1vpp into 75 ohms)
8. C (chroma) signal for S-VHS (1vpp into 75 ohms)
9. NTSC composite video signal (1vpp into 75 ohms)
10. +5V (Could be just a high logic signal)
11. Left channel audio out
12. Right channel audio out

Additional notes:

As seen above, the SNES does have RGB capability. I was able to get a stable raster on my NEC MultiSync "classic" using the RGB and sync pins. However, the video levels are not RS-170 compatible. The DC offset needs to be filtered out with some large capacitors and the peak-to-peak video amplitude may need to be reduced to 0.7v by using a lower load impedance than 75 ohms. The Y/C (S-VHS) signals *appear* to be directly usable, but tests cannot be made until I find the pinouts for the S-VHS connector on my TV.

Jay Tilton
06/28/98