[Coco] Coco 1 video problem.. Wrong artifact colors???

Robert Gault robert.gault at att.net
Fri Sep 2 09:48:07 EDT 2011

Mark Ormond wrote:
> I got a coco 1 that I posted about the other day and it doesn't display Blue as a artifact color but green.
> (easiest case to point out, using the downland cart, the startup text is either red, or green.)
> I've swapped the 6847 and 1372 from a known good coco2, but the colors stay the same.
> The tv works fine with my other cocos.
> Any suggestions?

Open it up and see if it is a PAL unit. I seem to remember that the artifact 
colors on PAL units do this.

You could adjust the tint control on your TV. That might get you the required 

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