Right. I just finished modding my SNES JR / Mini for RGB and temporarily soldered up wires from Blue on SNES MultiAV to Blue UP (pin 7 of SCART plug), from Composite Sync (SNES Multi-AV) to Composite Video (pin 20 of SCART plug), from +5V of SNES MultiAV to 99 Ohm resistor then to RGB mode pin (pin 16, of SCART plug), and linked pin 18 SCART plug (SCART plug pin 16's Ground) to SCART pin 17 (Composite Video Ground) then pin 17 of SCART to Ground of SNES MultiAV (pin 7 not pin 8) and hey presto I have a blue video playing of Zelda! No visible jail bars / diagonal lines yet, but then again this is only connected to my Sony 14" TV so far, just as a test.
It's crisp and noise free, however I am getting smearing to the right and left of some of the video, which seems to be when other colors are present as well as blue.
Next I'll wire up green and red and see what it looks like then test on my 29" TV and IN76 projector.
UPDATE: Got R and G wired now as well. Connected up and no red! Darn, just discovered I have broken off pin 1 inside the MultiAV of the SNES plug on the cable (not the SNES multiAV socket thank goodness!). So connected a thin wire from RED on the header on the PCB that connects to the socket, and then to the plug! Just to test! And finally I get red.
The RGB picture from my SNES 2 is far too strong. Works in my RGB SCART to S-Video converter when I turn down the brightness and contrast and color in the IN76 projector by a lot but is clipping badly when I try inputting the RGB into my Pioneer LX60D DVD / HDD recorder. Needs some resistors adding to a perf. board inside the case of the SNES 2.
There is no smearing now that I have all 3 colors showing. Very low noise. The pj won't lock onto the signal directly (odd since it did from the Pioneer via SCART RGB in 50 and 60Hz. PJ takes Composite video from Pioneer AND RGB (C-Video for sync). Works. But pj won't lock onto SNES 2 (or large SNES) giving C-Video or C-Sync!! Odd.
No diagonal lines on the RGB picture from the SNES 2. But moderate herringbone pattern on S-Video from the large SNES (down the same cable!), how annoying.
Picture is fair sharpness on the SNES 2 (a little disappointing compared to the Composite picture's sharpness!) but very soft on the large old SNES.
Frankly I think I prefer Composite from the SNES 2! It was noticeably sharper! Unless it's my RGB SCART to S-Video converter reducing the sharpness. But I have to use the converter, the pj won't lock onto the signal directly.
Next I'll try to build one of those cheap RGB to Component converters that act like JROK ones ;-
http://www.sega-16.com/forum/showthr...-video!/page10
...then maybe I can have a nice clean Component picture for my pj.
UPDATE: Just tested my J S Technology RGB SCART to S-Video conveter with my LX60D on RGB, going into S-Video input of pj and I get no noise and no problems on vertical edges and no diagonal lines, and no herringbone pattern, and no loss of sharpness at all, this being on 60Hz but with PAL color encoding that the converter always gives out whether on 50 or 60Hz! Looks pretty good. However at 50Hz there is a little twitter / corruption / noise on vertical edges from the converter, which causes a slight loss of sharpness but only very slight.
LX60D via RGB SCART straight into pj is perfect when I use RGB SCART into an adapter block (adapter block needed, since pj cannot accept SCART directly), and then feed the RGB into the pj, and use Composite Video from the LX60's own Composite Video socket (it needs C-Video to Sync because it only accepts SCART RGB with separate sync of C-Video (or C-Sync, I hope)). The picture is almost perfect, with some herringbone pattern on yellows at 50 and at 60Hz if I use the adapter block but get C-Video from the plug on the adapter block instead of on the LX60 itself.
If I use the exact same cables for Component from LX60D to pj as I used for RGB SCART plus adapter block, I get a perfect picture on Component input of pj with no patterns at 50 or 60Hz. LX60D S-Video straight into pj is perfect with no patterns at 50 or 60Hz.
Therefore the large SNES being rather blurred in RGB is a problem of the PPU inside it. Since the capacitors in the SNES NTSC USA style RGB cable may be acting as a low pass filter causing blurring for both SNES's, but the large SNES is rather blurred compared to the SNES 2 (JR / mini).
I think I'm going to reduce greatly the value of the cap's in the SNES RGB cable and see if it reduces the blurring on either SNES's RGB output and I'll report back hopefully. The cap's on the RGB lines in the cable are 220uF at the moment.
UPDATE 2: Noticed that if I use a thick SCART cable (JVC brand, shielded I imagine) with the RGB SCART to S-VIdeo Converter I get no herringbone pattern / diagonal lines until I change the cable to a thinner cheaper one, then I sometimes get moderate lines. But if I switch the converter off and back on the lines are almost gone even on the two cheap thin cables I have (and they stay almost gone!)! But there is still a tiny bit of diagonal lines if you look carefully and closely at the screen, whereas there are no lines at all with the JVC cable in 50Hz or 60Hz, it's a quality cable.
Cheers,
Alistair G.
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