NTSC Sega Saturn and PAL Scart Leads
The AV Socket on PAL and NTSC Sega Saturns are configured slightly differently. You may have noticed when searching online for an RGB Scart lead that some shops list PAL and NTSC Scart leads seperately? I never paid much attention to this before, but now that I have a JPN Saturn console, I wanted to use my official PAL Saturn RGB Scart Lead with it.
I found this forum post by KillerBean2 at Sega16 which explained the difference. I didn’t follow the instructions exactly, I preferred to cut the trace to Pin 1 and then solder a wire from Pin 1 to the Transistor supplying 9v.

Not all Saturn motherboards have 9v from the PSU connected to the motherboard, you can connect up the 5v from Pin 4 instead – this means it will switch your TV into widescreen mode (assuming it it).
Just in case the forum post ever goes -
KillerBean2 - Sega Saturn PAL RGB Scart on NTSC Console

Great guide for using a PAL-cable with a NTSC (JAP) console (on a EU TV).
But what happens if you have a NTSC (JAP) Saturn with a JAP RGB-cable and a European television?
(Thanks for all the great info on this site)
/O
Then you need to either build an adapter from JPN RGB to EURO RGB or try rewiring the lead.
There’s probably enough info here to construct an adapter cable http://www.mmmonkey.co.uk/euro-rgb-to-japanese-rgb-converter/ (thats the other way around, but shouldn’t be too difficult to reverse it)
Hi there!. I’ve been wondering for years now if there’s a way to wire the Saturn RGB signal directly from the motherboard into…well… common RCA component (RGB). I live in a country that never ever heard of euroconnectors and such. And believe me that I’d rather try to solder than to buy a cable, an adaptor and an adaptor for the adaptor (you wouldn’t believe just how expensive it is to import this kind of things!) My console is Ntsc-U.
Thanks a lot!