[Coco] Coco 3 pixel clock

[jdaggett at gate.net]

Chris

That is a neat product. Looks as if the display is meant to sit on top of a 
XBOX console. Man that may give me an  idea for a repack of a Coco3!

james

On 9 Oct 2007 at 11:09, Christopher Hawks wrote:

> Thanks Guys for the info.
> 
>  I've been playing with a 5.4" LCD display (Intec G8270) and my Coco3.
>  I
> can run S-Video into it and get a great picture. I noticed that the
> internal conversion board (S-Video to the LCD) has a 7.15 MHz crystal
> and tried connecting the Coco3 directly to the LCD. They both have
> Red, Green, Blue, and Sync connections. (I combined Hsync and Vsync
> with an OR gate.) It looks great (with my Hsync delay circuit to
> center it), but appears to be missing about every eighth dot on the
> screen. If I move the display horizontally, the missing dots change so
> I suspected it is a difference in pixel clock rates. This occurs in
> all resolutions (640, 320, and 256).
> 
>  This would be great! A color LCD with just a 2 chip interface to the
> Coco3. (Cost me about $45 on the internet.)
> 
> -- 
> Christopher R. Hawks
> HAWKSoft