[Coco] Re: NTSC to VGA.. more common than you think?

[RJRTTY at aol.com]

In a message dated 1/16/06 4:26:28 A.M. Eastern Standard Time,  
Torsten at Dittel.info writes:
>Maybe you can connect the CoCo's Composite  Video
> Out to the CSYNC
>connector and it will work fine. I'm not  sure if this
> would serve as a
>"Negative CSYNC". Otherwise you should be  able to 
>generate any kind of
>CSYNC by combining the CoCo's HSYNC and  VSYNC 
>(e.g. by XORing it) withome 74xx >logical IC. Does anyone know about  how 
this would >work?
 
 
When I researched the XRGB2+ converter for this group I came
upon a combined sync line.   It turned out that NOR ing the  two
coco3 sync lines together gave the proper signal for this input.
 
Roy