[Coco] Convert RGB to euro conector

[Fedor Steeman]

This is the original message I sent at the time...
/Fedor

---------- Forwarded message ----------
From: Fedor Steeman <petrander at gmail.com>
Date: 8 January 2009 13:37
Subject: *COOL* Look what I found! (VideoMod for CoCo2)
To: CoCoList for Color Computer Enthusiasts <coco at maltedmedia.com>


Hi all,

While going through the huge lot of copied CoCo Manuals I inherited from
Michel Collette, a former Dutch CoCo-society regional coordinator, I
discovered the following schematics for making a video buffer mod for
the CoCo2, enabling a CoCo2 to be coupled up any television or video
equipment with a composite video input:

http://www.steeman.dk/CoCoManuals/VideoMod_(KoenVaartjes).pdf

How cool is that!?

It is all in Dutch, written by someone called Koen Vaartjes, but if people
are interested I could translate, clean it up, perhaps redo the schematics
in a graphics editor and put it up on a webpage!

Some of the equipment i inherited from Michel Collette actually included a
CoCo2 with this video mod. I tried it out when I first discovered it and it
worked flawlessly then. After having transported the CoCo one time, however,
something went wrong, because after that all I got was a black screen and no
sound. I believe there must be a loose contact somewhere, because every now
and then when I try it, it works again.

The final page looks like a schematic of a scart cable (
http://en.wikipedia.org/wiki/Scart) that is widely used in Europe at least.
I do also have a modified SCART cable that can be used to hook up the
RGB-output of a CoCo 3 to a normal television with a scart input. That too
once worked, but not anymore. Maybe if someone could help me understand the
schematic, and figure out what wires of a RGB-cable should be connected to
what pin of the scart, I could try to fix the cable or make a few more for
anyone interested... This would mean that a CoCo3 could be connected from
the RGB output directly to a television with scart input.

Cheers,

Fedor