So my HD Retrovision cables stopped working a while back, and I just got around to trying to diagnose the issue with them. They're well outside of warranty at this point, so that option is out of the question. I was thinking there was probably a broken wire somewhere in the cable. I started doing some diagnosis starting with the green wire, since that wire is critical for getting a picture, and sure enough there was no signal on green, but blue and red were still working. Unfortunately there was nothing visibly wrong with the cables from the outside, so I wasn't entirely sure where exactly to start looking. Started with the plug end because there is no strain relief there, and that would be the most logical place for a break. No break there, so I decided to open up the other end and uh, I think I found the issue! Completely severed green wire! I have no idea as of yet if I'm going to even be able to fix this because that circuit board appears to be encased in a hot glue like substance, and removing it could potentially pull off components from the board. Has anyone else had an issue with their cable failing?