[Coco] Composite Video

[Luis Antoniosi (CoCoDemus)]

Talking about coco3 right ?

Yes, there is indeed something strange on it. Because I have a composite to
vga monitor that works with: C64, Apple, MSX but not with the Coco, it will
show the green screen with vertical stripes. The chroma is someway
different there.


On Wed, Aug 14, 2013 at 11:35 AM, <billg999 at cs.uofs.edu> wrote:

>
> Is there something non-standard or strange about the composite video
> from the COCO?  I have tried hooking it up to a number of monitors I
> have that support composite inputs but the video either doesn't work
> at all or is garbled or in someway unable to be used.  I always assumed
> it was the same reason why modern VGA monitors don't work with other
> older systems, scan rate problems.  But I had reason to fire-up a few
> Apple ][ systems (before giving them away to a good home) and hooked
> up to the same monitors they displayed just fine using composite video.
> Is there an adjustment inside a COCO 3 that might need tweaking after
> sitting for more than a decade to make the composite video work ok?
> Oh yeah, I also have a couple adapters that take composite in and
> provide VGA out and the COCO doesn't work with them either.  I didn't
> think to try the Apple on them, but I will tonite.
>
> bill
>
>
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