Tricky SNES 1chip, raw sync question (not a mini)

I have been using this Scart raw sync cable to get RGB from my original SNS-001 and RGB modified Mini SNS-101 (with sync reconnected inside). I finally tracked down a 1chip SNS-001 (full sized) but I'm not getting any picture using the same cable.

My question is, why does a regular Super Nintendo (SNS-001) work perfectly without any modifications via raw sync Scart, while the 1chip doesn't? The 1chip does output s-video and composite fine.

Do I need to order a standard non-raw sync Scart RGB cable for the 1chip SNS-001?

 

http://www.gamesx.com/wiki/doku.php?id=av:nintendomultiav
The parts at the bottom. See if there's any capacitors inside the scart cable.

 

Thanks splith, but I'm not sure how to interpret that information in relation to my question.

 

You should open your SNES and check the model revision of the mainboard. There are several different 1chip variations.

SNS-CPU-1CHIP-01
SNS-CPU-1CHIP-02
SNS-CPU-1CHIP-03

The 1CHIP-03 doesn't have CSync connected to the multiout.
So if yours is a 03 then you know why your screen is black.

 

I have the 1chip-01. I connected the c-sync to the multi-out (just like it is in my SNES mini) to test and it still didn't put out a signal.

 

Can i use any RGB scart or S-VIDEO on Super Famicom or on a non-1CHIP SNES?

 

Yes, s-video and RGB will both work.