svga 4x bnc , pc - beamer

[kwiebus]

can some one tell me how to make a cable from my matrox 450 dual s-vga to 4x bnc
I'll will use my pc on a Barcodata 708 video beamer but don't now with's pin's to use there are only 4 bnc connectors for rgb on my beamer , I'll don't understand the 4 options I'll can use to connect my pc

RGBS or RGsB
RGB3S or RG3sB
(R-Y)Y(B-Y)Y or (R-Y)Ys(B-Y)
(R-Y)Y(B-Y)3S or (R-Y)Y3s(B-Y)

there is no H and V sync input on the beamer
only is there a S connector
lot of thanks . kwiebus form holland

[Kruzin]

Do a search for "SOG" or "synch on green"
The answer is out there, I just dont remember it all...

[arbymo]

hi there kwiebus ..
i think that u need to enable composite sync for ur G450, seeing that u have 4 inputs on ur display RGBS where S might be the sync signal.
composite sync would put both V-sync and H-sync together on the same cable .. i dunno how to enable that on a G450 as i don't have one myself.

also have a look at gbm site ... it's posted on MURC front page.
good luck.