My last video card (Matrox) had a standard RGB style video plug that plugged into the video card and exited with an RCA plug... if you had interest in plugging your PC into your TV... sounds like all you may need is the proper cable.

 

I've worked in arcade repair for 3 years... and I've actualy been working on a converter for RGB (what arcade machines use) to NTSC (the yellow RCA jack that US TVs use)

There are 2 main differences between VGA and RGB:

1. resolution, VGA tends to be far higher than RGB, depending on what RGB it's expecting you'll have to play around with the output settings on your laptop

2. H-sync, VGA uses both a horizontal sync and a Vertical sync while RGB uses a single C-Sync (composite sync). This you will actualy have to convert

problem one can pretty much be solved by playing around with your output signal and probelm 2 can be solved by making a simple converter...

I've never made one but I've seen one before and I dont seem to remember it being that complicated.

if you want more info on this try doing a search for MAME (multi arcade machine emulation) cabinets. MAME runs on a PC and a lot of times people will install it with a real Arcade monitor. This causes them to have to convert the PC VGA signal to the Arcade monitor RGB signal. I'm sure if you just did a google search for "VGA to RGB" and or "MAME cabinet" you'd find what you're looking for

I'll keep my eyes open ")

 

here are some good links I found:

diagrams to do it yourself:
http://www.hut.fi/Misc/Electronics/c.../vga2rgbs.html

or you could buy one and make some small conversions:
http://www.pchcables.com/6footvgato5b.html

I'm assuming you're RGB connector is the old style 13 pin "looks like a VGA" connector. if so and you buy one you'll have to cut the BNC connectors and solder it into a 13 pin connector. Almost NOTHING uses the 13pin anymore when dealing with RGB. RGB is typicaly reserved for High Quality feeds and so they use the high quality BNC lines. the 13 pin was used before VGA and sometimes now in tight spots (like a car unit). there are even a few other versions: 13pin (phylips), 15pin(will fit a VGA but wont work right), 25pin(sony), S-Cart (european hi-def), and 5 separate BNC lines.

good luck to you... if you have any questions or need any help just ask ")

 

here are some pin outs

http://www.hut.fi/Misc/Electronics/c...b_pinouts.html
it covers a "din" pin out thats round if that's not what you're looking for then:

http://www.computerrepairservice.com...Connector.html

if you scroll downa little bit they have a list of all sorts of video types.

I think the easiest way to do what you're doing
(if you have no luck getting the right pinout) would be to find a plug that fits and use alagator clips on the wires and play around until the signal looks right. You basicaly just have R G B and Sync and the rest are ground so...