RGB woe; Or how to convert it to S-video cheaply...

[PDP-13]

RGB is fine and dandy, but to get the full advantage you seem to have to shell out a lot of $$$.

Cables, Profesional monitors, console mods and the like.

JUST to enjoy the games as they were meant to be.
(I assume all games were developed on high end RGB arcade style monitors, with nice stereo speakers and the like)

What I would like is a cheap 'RGB & Composite Synch.' to 'S-Video' or 'Component (YUV)' box.

less than the usual +$100US.

I think this can be done because the video encoder chips are around $15 apiece. I would assume it should cost less than or equal to $50US.

Does anybody have any knowledge or schematics for a PCB board that simply changes the 15Khz RGB signal to a S-video (or composite YUV) signal?
That could be built simply and cheaply by inexperienced and miserly people? (who would like to avoid further suffering with RF and component)

[omnedon]

I'm still learning about video signal coversion. Some here know a lot more than I do.

The heavy duty AV geeks hang out here: http://nfg.2y.net/forum/index.php?s=3216481723ff260b68f81e0540621966&act=SF&f=5

[Avatard]

In my super gun I built for Jared_Vibelicious I used a great little converter, its a little card about 2 inches square with RGB, 5+volt, sync, and ground input, and outputs RCA and S-Video. Great little item. Problem is I can't remember where he got it, you can post and ask in Arcade Alley under "My BDay gift".

If you want one that isn't powered I'm not sure what to do. It costs about $75.

[davidleeroth]

Buy a screwed PlayStation or Saturn for a dallar, rob the CXA1645P chip from it and build the circuit featured in the datasheet (http://www.datasheetarchive.com/datasheet/pdf/24/240865.html). Have fun!

[PDP-13]

So to sumarise I'll need:

1 x Sony CXA1645P/M (DIP is Much easier to solder/desolder...)

Capacitors:
2 x 47u farad
2 x 220u farad
1 x 10u farad
1 x 0.1u farad

Resistors:
1 x 47k Ohm
2 x 75 Ohm
1 x 20k Ohm METAL FILM +/-1%

Condenser:

6 x 0.1u Condenser

1 x S-Video connector
1 x 5+ Volt supply (possibly from gamesystem?)

Is there any specific model of playstation that will ALWAYS have these chips? (early models?? late?)

especially the chip in DIP package, as that surface mount stuff is too darned hard to solder for noobs (such as myself)

edit:
are these ALL the parts that I need? (minus protoboard and lots of wires)
can someone check, also some other boards of similar design have an oscilator... I have not seen where that goes on the example schematic. do I need it?

[PDP-13]

Also there is a mistake on the data sheet I have...
pins 15 and 16 seem to be wrong, as one part of the data sheet claims pin 15 is chroma but elsewhere its Y...

Also what is attached to pin 6, the Subcarrier input?

can someone get a more readable (and complete) schematic?

[PDP-13]

I found a schematic that is far more complete.

http://www.nexusuk.org/projects/rgb2svid/

looks to be slightly more tricky then planned with several more parts.

[MrKitt]

if im not misstaken www.gamesx.com have a schematic for this purpose.

[D-Lite]

I know that PDP posted about this at gamesx.com, but I'll reply here as well for general info.

There are several easy options for doing RGB-> S-Video and now even for component.

JROK = $75 using either CXA1645 or 2075 (similar)
R2N (www.crazearcade.com) = $64 using AD725
NeoBitz = $115, but does S-Video, composite, AND component! Only good solution on the market and works fabulous