How to improve a megadrive1 RGB scart cable so it works OK on my lcd-tv at 60hz?

[keropi]

Hiya!!!

I modded a PAL megadrive1 with region+hz switches... on crt tv's it works perfect, but on my gaming 37" LCD TV (LG 37LH4000) the screen flashes and has problems under 60hz... I made a quick and dirty vid to show this:

VID 00017-20100702-1845.3GP

I have concluded it is the cable to blame because the same tv works fine with snes/sms/nes/ps2/ps1/everything at 60hz and has no probs whatsoever with on-the-fly switching... I did try turning on the console at 60hz, still same problems... (my ntsc cdx  works also fine btw   )

I took 2 pictures of the cable, maybe someone spots something wrong here?





Thanks for any input/help!


edit: I found out that after switching to 60hz and I press reset repeatedly several times the image gets stabilized, maybe I need to do some extra work on the md1? I followed mmmonkey's guide here: http://www.mmmonkey.co.uk/console/sega/md1switches.htm

[albino_vulpix]

Try adding the capacitors shown here.

[keropi]

I did further testing with a higher quality cable too, still the same BUT I also tested on my 20" lcd/tv-monitor  and it works perfect there! So it is a mismatch between the 37" tv and md1 output... I will try adding the caps and report back, thanks!