CD-i:Video Output Notes

The CD-i outputs RF (via adapter), composite, and S-video. Some PAL units also output RGB via SCART on the back on the console.

RGB
For some units without a RGB SCART port on the back, you can mod them for RGB output. Most front-loading CDi systems use the Sony CXA1145 video chip and can be RGB-modded. Sync outputs as TTL sync, and therefore needs a 470 ohm resistor and 220uF capacitor on the sync line to be safe for consumer devices.