i bought some scart connectors online and modified them to the japanese 21 pin rgb standard for my xrgb2 plus.
i have some problems with some of them. for the most part it seems simple enough to rearrange the pin outs inside the cables.
i have had luck with the snes and dreamcast cables getting nice sharp video with no artifacts.
the sega saturn and sony psx/ps2 cables all seem to share the same problem.
for most games the picture looks good but if you look closer you can tell there are some rapidly moving square artifacts.
games that run in a high resolution and or 60 fps mode really show these ugly square artifacts.
some games i have tried
saturn games dead or alive, vr fighter, fighter mega mix, wide dome in saturn bomber man.
ps1 games turbo prop racing, ridge racer 60 fps bonus disc, ehrgeiz.
i have seen these artifacts in the snes cable before i change the original scart cables wire on the snes side.
they had the (pin 9)composite video as the sync . i switched it to just the (pin 3)composite sync.
now the picture is perfect.
i double checked the saturn scart cable pin out and it is (pin 1) the true composite sync.
so i dont see how i could improve the picture and remove the artifacts.
the psx/ps2 cable i added the lm1881 circuit to pin 6 to filter the true sync signal but the picture still has the artifacts.
i wonder if there is away to get a better picture from those systems?
is the problem i have related to the fact that i am running the rgb to an xrgb2 plus then to the vga port on my hd dlp tv?
i also run my neo-geo, genesis/32x(cdx, and nomad all work)turbo duo+amp, super grafx+amp and super nova to the xrgb2 plus and they all work prefect.
with this many systems working great i cant see it really being a limitation of the xrgb2 plus.