..old consoles (e.g. PCE, MD, SFC, Marty..) via AV or S-VHS to a TFT analog 15-pin-D-Sub connector for getting the best result in term of picture quality? adaptors? converters? mods? anything is welcome. thx tatsel :icon_bigg
the "best" result for consoles that don't natively do 31Khz signals is a standard old CRT, with RGB as your best option. If you upconvert the 15.7 Khz (interlaced) signal that old consoles outputed, with a cheap (relatively speaking) upconverter, the results are going to be shite. A "proper" upconverter however costs alot of money, from 300-600 dollars.
Tap RGB from any system you can, and run them to a S-Video or Component Video encoder like JROK (www.jrok.com). Unless your TV supports 15khz analog RGB. You could actually build something so you could buy those RGB cables that have SCART ends and build the JROK into a box that has a SCART plug in it so to make it a convertor box or something neat like that.
How would one go about connecting the Red, Blue, Green, and Sync leads from that convertor to a SCART cable?
Get the female SCART connector, and wire up the appropriate connections. Most JAMMA Supergun tutorials will tell you about SCART and wiring to it. This is only different because you're wiring the RGB from the SCART cable that goes into your female SCART connector to your JROK encoder. Really it'd be a matter of just getting the female SCART connector you can solder to, getting a pinout for the SCART connector, and then soldering the wires from the JROK encoder to the SCART connector. The hardest part/most annoying part is the JROK encoder needs +5v and Ground. That means you need a power source obviously, and it'd be just a bit of overkill to use a PC PSU for that. But I'm sure you could find another PSU that would do +5v and be much smaller.
BarC0de hit the nail on the head. Upscanning something will arguably give you the "worst" quality, not the best. Some systems (MD, SFC) have official RGB 21-pin cables which will work on some CRT 15-khz monitors. The Marty doesn't AFAIK, and the PC-Engine requires a hardware mod to support RGB. As your in Japan, your best option for quality would be to buy a Wega CRT TV which supports AV-Multi, and buy an AV-Multi to 21-pin RGB converter. (AV-Multi is RGB). Here is a long list of WEGA models which have AV Multi. You can get the TV off of Yahoo Japan for cheap, and can buy the converter at the RGB Hospice (link above). For shits and giggles, you could then buy a Digimarc Arcade-VGA graphics card, stick it in an old PC, play MAME (amongst other emulators) in native 15Khz modes, and laugh hysterically at people who: 1) say emulation sucks 2) rave on about emulated collections such as Taito Memories, Sonic Gems, etc. which look inferior to emulation through an A-VGA. It will require you to make a 15-pin D-Sub to 21-pin RGB cable, but it wouldn't be so difficult. The pinouts for both can be found on the interweb. I have such a setup, and it has made touch myself on many occasions.
you're right. but i didn't ask for the best quality possible with using a CRT, i like to know the best possible solution for the best resulting quality with using a TFT :icon_bigg But thanx a lot for the infos. will investigate the best way to go btw: thanx also for all the other replies. pps: do someone know a direct AV (composite) to VGA converter?
I don't think that's possible since VGA relies on separate RGB signals and composite is a single muxed video signal.
Only super-expensive professional upscanners would cut it really, but they cost an arm and a leg, and you have to take the word professional literally.
