This Dragon Lost Its Color

Описание: 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

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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

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#septandy #dragon64 #septandy2021