Started by Shadow_Zero, September 24, 2003, 05:29:52 AM
QuoteI had a bit more of a play around with this today (modding a GC RGB SCART lead to work on a PAL SNES). I wasn't able to find much info on the PAL SNES video output on the net, so I've no idea how "correct" this solution is, but removing the three capacitors on the R, G and B lines and sticking in three 33ohm resistors in their place seems to do the job. Doing that, then switching between the RGB and composite signals shows the images to be pretty much the same in terms of brightness.
QuoteThe resistor between the composite video out and ground is required to get the video to the standard signal level. It's present in the standard AV (3x phono) cable too. You can probably leave it out if you've only going to be viewing RGB (and using cvideo for just sync information). I have no idea why nintendo chose design it like this.
Quote from: kamiboy on November 08, 2010, 11:47:19 PMOut of the two different revisions of the newer SNES's I have the very last, which is apparently very rare in NTSC. Nintendo prolly removed or added some caps from the RGB signal path while doing this last NTSC revision which made the signal incompatible with the SHVC-010 cables.
Quote from: RGB32E on July 16, 2008, 02:16:06 AMThe PAL GC RGB and SHVC-010 are not quite the same... Since you are using the official GCN SCART cable, you have the choice of using filtered composite or composite sync (both are fed through the scart plug PCB). Which signal are you using as sync? Either choice of sync (filtered CVBS or CSYNC) will work fine on a Sony PVM, but not necessarily on other monitors or RGBS accepting devices.Some similarities between official SFC RGB and official GCN SCART cables:-R, G, and B are filtered with 220uf caps-CVBS is fed through the cableDifferences:-Both CVBS and CSYNC (or +12VDC for PAL systems) are fed through the GCN cable (only CVBS is wired/used on SFC RGB cable)-CVBS is filtered with a 220uf cap on the GCN cable (CVBS is not filtered on SFC RGB cable)-GCN cable uses 100 ohm resistor for the SCART mode setting and the SFC connects VDC through series 75 ohm resistor to the +5VDC pin of 21 pin connector.