This Dragon Lost Its Color

This episode is sponsored by PCBWay https://www.pcbway.com This Dragon 64 was working... but had really messed up colors. What I thought would be a quick fix adjusting a couple of potentiometers, ended up turning into a deep dive into the world of PAL color generation and discovering how the tiniest glitches can wreak havoc on the full system. Chapters: 00:00 Intro 00:46 Board overview 03:01 Video signals 05:57 LK2 09:25 Encoder 11:18 Other tries 12:42 Circuit analysis 16:38 Select signal 18:08 Short! 22:29 Final test 24:40 Dragon 32 surprise 25:24 Conclusion Support Noel's Retro Lab on Patreon:   / noelsretrolab   You can also support Noel's Retro Lab on YouTube by joining this channel:    / @noelsretrolab   Links: Andonstar microscope https://andonstar.com/?product=adsm30... Music tracks: Funky Stars by McKlain https://mcklain.bandcamp.com/track/fu... Battro OST by McKlain https://mcklain.bandcamp.com/track/ba... More awesome music by McKlain: https://www.mcklain.com 🛠 Tools I use ➤ https://noelsretrolab.com/tools.html Connect with Noel's Retro Lab: Discord ➤   / discord   Facebook ➤   / noelsretrolab   Twitter ➤   / noelsretrolab   Instagram ➤   / noelsretrolab   Mailing list ➤ https://noelsretrolab.com #septandy #dragon64 #septandy2021