[Coco] CoCo 2

[Robert Emery]

Yes, for some reason it does not accept the separate sync signals. You just
have to put a 1N914 diode on both lines and connect both cathodes to the
h-sync input.

You can use either the DB15 connector or the wire header they provide, but
you will also need a 5v 2A power supply for it.

Picture is beautiful! Maybe not perfect, but well worth the $20 (incl.
shipping!)

Add a VGA to HDMI with audio and you're golden!
I will post a video soon.

On Sat, Jan 14, 2023, 1:14 PM Rob Rosenbrock via Coco <coco at maltedmedia.com>
wrote:

> Okay, don’t laugh…
>
> I have had one of the GBS-8200 boards for a few years. I bought it for my
> JAMMA cabinet when I was looking into a future replacement for the CRT.
> I’ve run across it a few times but never thought about using it with my
> CoCo3. You connected this to the video connector underneath the CoCo3? I’ll
> have to experiment with it some.
>
> I also have another video that looks like it converts composite (they call
> it video/bnc) to vga, and something from black web that converts composite
> to HDMI.
>
> All three of these could easily convert the composite signal to a modern
> monitor.
>
> > On Jan 13, 2023, at 9:46 PM, Robert Emery via Coco <coco at maltedmedia.com>
> wrote:
> >
> > I am pretty much in the same boat, having been away from the CoCo scene
> for
> > a couple decades. Here's what I've found...
> > CoCo DV is pretty much the only _currently_ available product that will
> > give you artifact colors via HDMI. The main drawbacks are that it doesn't
> > include audio and it doesn't work on a CoCo 3.
> > I installed one in a CoCo 2 that had no working video output (early model
> > converted to composite-only by Tandy) and it works great! My biggest
> > complaint was that I kept mindlessly hitting reset because I forgot I now
> > have a button to control artifact colors!
> > For the CoCo 3, I went to AliExpress and got a GBS-8200 for $15. Turns
> out
> > it works great for the CoCo 3 without modification... I just had to
> combine
> > the sync signals and viola!
> > I even made a straight Coco 3->VGA cable, with integrated audio and
> > combined sync (to H-sync)
> > Along with the 8200, get a VGA to HDMI adapter with audio input...  Grand
> > total ~$25-35 off AliExpress, probably three times that with local
> sources.
> > HTH,
> > Bob (LaCoCoStrangiato on YT)
>
>
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