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.
- Red analog video out (1v DC offset, 1vpp video into 75 ohms)
- Green analog video out (1v DC offset, 1vpp video into 75 ohms)
- Composite H/V sync out (1vpp into 75 ohms)
- Blue analog video out (1v DC offset, 1vpp video into 75 ohms)
- Y (luminance) signal for S-VHS (1vpp into 75 ohms)
- C (chroma) signal for S-VHS (1vpp into 75 ohms)
- NTSC composite video signal (1vpp into 75 ohms)
- +5V (Could be just a high logic signal)
- Left channel audio out
- 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.