CoreGrafx Horizontal Scrolling Artifact with RetroTINK 5x Upscaler

[lamb2k]

Hello all,

I'm experiencing a specific issue with my CoreGrafx unit when outputting to a RetroTINK 5x upscaler. There's a persistent horizontal scrolling artifact appearing on screen. I've tried various settings on the RetroTINK and checked the cables, but the issue persists.

Has anyone encountered a similar problem or can suggest troubleshooting steps to resolve this? Any help would be greatly appreciated

Image: https://imgur.com/gallery/IVELKjF

[Keith Courage]

Looks like a grounding issue. Usually this is caused by generic scart cables, generic power supply, or a weird ground loop in your homes electrical wiring. If you are already using good quality scart and power cables, then I would try plugging the power supply for the coregrafx into a different outlet in your home or plug your TVs power cable into a different plug in your home. Powering one or the other on a different circuit can fix this problem.