Fixing an NZXT Signal 4K30 part 2: the green/pink video bug
What happened
Last year, I repaired an NZXT Signal 4K30 USB capture device that I bought on eBay for cheap. It was completely dead, and the cause turned out to be a bad solder joint on an inductor, which prevented power from getting to a crucial part of the board.
Summary assembled by rule from the sources below