I am having an issue with Jailbars. ... Anyone have any suggestions?
I got two for ya:
1) From steve: Ground your mod video circuit (
be it a RGB amp or our new YPbPr mixer, etc.) as close as possible to the 6260 chip - pins 55+56. You can bridge them as they're both ground for easy soldering of a wire! Here's a nice video I remembered that I'm gonna link in the OP:
I've also updated the Jailbar Guide photo to help.
2) You familiar with twisted pair wires ?? That was a basic, cheap way to help reduce interference as the ground/negative wire wraps around the signal wire, etc. The next step up, the better way was a coax design, where the ground is sheathed/braided wiring that completely surrounds the signal core wire inside. If they use aluminum wire, they'll even wrap it with solid aluminum foil. If it's just copper, it'll be just braided copper, etc. Anyhow, point is, if you're willing to do the grunt work, you can try switching from single, solid wires to dual ones that include ground, just like the very RCA cabling that is used for Composite/Component on the outside, etc. The best would be the thinnest copper ones you can find. Problem is they'll be bigger than the single wires you're using now... Solid twisted pair wires not so much, but they're not as good at interference reduction. Note, no guarantees here with this idea, but just a suggestion...
Other than that, I can't think of too much else from what I've read around here. There was talk about using more shielding over chips and stuff somewhere though. If you were willing to go that far, that is, etc... But yeah, I'd try the first basic suggestion unless you already tapped those pins for ground.