[Coco] [Color Computer] Toshiba RGB monitor that worked w/artifactcolors

[Bert & Peggy Schneider]

Alex,

After you get moved - I would be interested in what kind of circuit and
what pins you used to hook up the circuit/cable.  I used a circuit to
invert the signals before combining them and then inverting the final
combined signal again - using a 74LS85.

Bert

-----Original Message-----
From: coco-bounces at maltedmedia.com [mailto:coco-bounces at maltedmedia.com]
On Behalf Of Alex Evans
Sent: Friday, July 14, 2006 1:10 AM
To: CoCoList for Color Computer Enthusiasts
Subject: Re: [Coco] [Color Computer] Toshiba RGB monitor that worked
w/artifactcolors


On Jul 13, 2006, at 9:44 PM, Bert & Peggy Schneider wrote:

> I bought an old Amiga 1080 RGB monitor that has digital RGB, analog  
> RGB,
> and composite video.
>
> But I've not been able to figure out how to get it to work with my
> CoCo3.
>
> Anyone out there who has done this - how do I make it work?
>
> I thought I had to combine the horizontal and vertical sync signals  
> into
> one composite signal.  I've done that with a circuit, but it still
> doesn't work.
>
> Any help would be appreciated!

IIRC I inverted my sync pulses as well as combining them.  I did this  
inside my coco 3 and sent the signal to the unused pin on the RGB  
video connector on the coco and routed it into the monitor using a  
custom cable.  Unfortunately I am in the process of moving and both  
my CC3 and the cable are packed away.


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