Reply To: Koryuu s-video interference

[megari]

@leewrigley I’m glad you got the missing chroma fixed (the solder blob did look relatively harmless, though, at it seems to make the correct connection).

Looking at the photo you shared, I may have gotten an idea. I wonder if the moving diagonal lines are caused by a ground loop in your case. They seem to be a common, specific symptom peculiar to ground loops. Why that came to my mind is that at least the top side of the PCB at the console end of your cable seems to have no ground pours, rather than individual traces connecting to ground. Depending on what the other side of the PCB looks like, the cable itself may be susceptible to ground loops.

Not sure about this, though, and even if a ground loop turns out to be the culprit, how to best fix it. It is rather easy to make it worse by introducing additional loops, though…