You should find most projectors will recognise the RGBs format, so just chop the end off a VGA cable and find the RGB and H an V sync signal wires with a multimeter, then wire teh female scarts RGB to teh vga RGB and the composite/sync to the Horizontal and the Vertical one of them will carry the composite sync to teh projector. RGsB is RGB with the sync carried down the Green, similar to the way component works. VGA is RGB/H/V (horizontal and vertical sync) Im assuming for the VGA connection Ill want to use a Sync Separator like the LM1881 to break the C-Sync out into HV Sync My other concern however is the voltage ranges. And since fundamentally, this is what VGA does also, its not terribly difficult to convert between these two forms of signaling. Or you can make one, using an LM1881 chip, and a couple of capacitors.Īll the info is on You may find that you projector can syn to RGBs anyway, in which case you only need to cut the end off a vga cable and wire it into a female scart socket. The RGB form of component is closest to the VGA signaling method since it employs three high-bandwidth cables which are used to carry an analogue representation of each the three primary colors. You can either buy a cable that does this fromĪnd this will also boost the signal you need on teh sync to guarunteed levels. It's the first time I've ever put together a circuit and even though it's a simple one and all the 'ee' was done for me I'm still pretty proud of myself.You need somthing thta can strip the Horizontal and vertical sync out of the sync you have coming from the scart. Then I went out and got a project box and breadboard (also from radshak) and did it right. First it was just a mess of wires and junk to make sure it would work as expected. The LM1881 operates from a single supply voltage between 5-V DC and 12-V DC. The resistors arrived today so I've spent it getting this thing up and running. They did have the capacitors but not the resistors (even in the $10 multi-pack) so I got some of those on ebay. Needless to say, RS didn't have everything I needed.

Figuring they'd have the capacitors and resistors I need at Radio Shack I waited for them to arrive. To be honest I don't know what made me think of it but it was on my mind so I decided to fix it for use with monitors that don't support 'SOG.' So I ordered a 5 pack of LM1881 'sync separator chips' on ebay.

The cable worked fine on my brother in law's monitor but that did me no good.įast forward to this week. Well, it did, just not on any monitors that I owned at the time and as a matter of fact I still don't own one that does. I had read back then that some monitors support 'sync on green' which meant a dumb cable where all I would have to do is wire this to that and it would work. this galaxy, I decided to make a VGA cable for my modded XBOX with Frosty's VGA patched bios.

Component to vga lm1881