(Updated) Build RGB Cable for Coco 3 for #SepTandy, See TRS-80 in Composite and RGB First Time Ever!
New color for a retro machine! In my second #SepTandy episode, I troubleshoot the Tandy TRS-80 Color Computer 3 (Coco 3) video output issues and build different RGB cables. See the difference in Composite and RGB Video quality. Looking into the generation of artifact colors in Composite mode, we trial legendary games Cyrus Chess, Dragon Fire, and Canyon Climber. The monitor is a Philips Magnavox RGB Monitor 80 model 8CM515. The internet resources for Coco3 RGB pinout are shown to be incorrect. The RGB pinout here is marked incorrectly : https://www.oocities.org/theother_bob.... What is shown is the mirror image which would be the view of the cable end rather than the Coco 3 connector. See the corrected wiring diagrams at 36:30 in the video.
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