[Coco] CoCo 3 RGB to SCART video, then converted to HDMI

[Bill Loguidice]

Fantastic. I've seen (and have) a SCART cable for the Dragon, but one for
the CoCo 3 is long overdue. I'd love to try this hooked into an XRGB-mini.
Let me/us know if you're going to sell any cables.

-Bill

===================================================
Bill Loguidice, Managing Director; Armchair Arcade, Inc.
<http://www.armchairarcade.com>
===================================================
Authored Books
<http://www.amazon.com/Bill-Loguidice/e/B001U7W3YS/ref=ntt_dp_epwbk_1> and
Film <http://www.armchairarcade.com/film>; About me and other ways to get
in touch <http://about.me/billloguidice>
===================================================

On Thu, Apr 30, 2015 at 1:12 AM, Barry Nelson <
barry.nelson at amobiledevice.com> wrote:

>  I have conducted an experiment and it worked! I wired the CoCo 3's RGB
> video lines from the connector on the bottom of the computer to the RGB
> lines in an SCART connector. I connected the audio from the CoCo connector
> to the left and right audio on the SCART connector. I connected the CoCo
> 3's composite video to the composite video/sync on the SCART connector and
> I connected +5V to a 100 ohm resistor connected to the "fast switching" pin
> on the SCART connector. I then plugged the SCART video connector into my
> SCART --> HDMI converter, which I plugged into my TV. Viola! Perfect RGB
> video up scaled to 1080P.
>
> Wiring
> CoCo monitor out pins 1 + 2, ground, to SCART pins 4, 5, 9, 13, 17, and 18
> CoCo monitor out pin 3, red video, to SCART pin 15
> CoCo monitor out pin 4, green video, to SCART pin 11
> CoCo monitor out pin 5, blue video, to SCART pin 7
> CoCo monitor out pin 7, audio, to SCART pins 2 and 6
> CoCo composite video out center wire to SCART pin 20 composite/sync
> +5V connected to a 100 ohm resistor to SCART pin 16
>
> I used this SCART to HDMI converter for $44.90
>
>
> http://www.ebay.com/itm/310620740857?_trksid=p2057872.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AIT
>
> And this SCART connector for $4.58 plus $3.06 shipping, $7.64.
>
>
> http://www.ebay.com/itm/391025894062?_trksid=p2057872.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AIT
>
> Plus one 100 ohm resistor, an old 10 pin header connector that I grabbed
> off an old dead IBM rs232 card, an RCA plug, some wire and an old cell
> phone charger to supply the +5V. You could also get +5V from the CoCo's
> joystick port but I didn't want to open my joysticks or my CoCo.
>
>