[Coco] MM/1 monitor solutions?

[Robert Emery]

Model correction: VS2755
ViewSonic

On Sat, Mar 1, 2025, 7:35 PM Ken Flanagan via Coco <coco at maltedmedia.com>
wrote:

> I can't find any information on that model. Can you double check that you
> typed it correctly?
>
> On Sat, Mar 1, 2025, 12:59 Robert Emery via Coco <coco at maltedmedia.com>
> wrote:
>
> > Newly discovered that my ViewSonic VS2755 works with a straight VGA
> cable.
> >
> > I suspect any new monitor that supports "freesync" technology will work.
> > Probably requires 15kHz support to qualify for that branding.
> >
> > Perhaps retro-gamers have more impact on the market than we thought..?
> >
> > On Thu, Feb 27, 2025, 8:50 PM Richard Goedeken via Coco <
> > coco at maltedmedia.com> wrote:
> >
> > > The Dell U2410 will also sync to 15khz and has a ton of inputs.
> > >
> > > Richard
> > >
> > > On 2/26/25 18:48, Allen Huffman via Coco wrote:
> > > >> On Feb 26, 2025, at 5:32 PM, David Ladd via Coco <
> > coco at maltedmedia.com>
> > > wrote:
> > > >>
> > > >> There are two types of connections depending on model of MM/1. One
> is
> > a
> > > >> DE-9 analog RGB or a 10 PIN IDC with the same pinout as the CoCo3.
> > > >> There are a few options you have is a custom cable from the MM/1 to
> a
> > > SCART
> > > >> box with one of the RGB lines fed to the composite sync line as
> well,
> > > and
> > > >> you must use the same SCART caps & resistors as the CoCo3 SCART
> > cables.
> > > >> Second option is running the green analog line and ground wire to a
> > > >> composite connector.  I have tried this with a composite capture
> > device
> > > >> making it a black/white image and I got a picture since the video
> chip
> > > in
> > > >> the MM/1 puts a composite sync signal on all RGB lines.
> > > >
> > > > Ah, I didn’t know about the square one. Mine is a Blackhawk unit and
> it
> > > has a DB9. I hacked my CM-8 cable, cutting off the end and putting a
> DB9
> > > not he cable, then the opposite gender on the cut off square, so I
> could
> > > move my cable between CoCo and MM/1.
> > > >
> > > > Now, I have not looked at the Microware MM/1 I have — it was an early
> > > model, so it might have the CoCo connector.
> > > >
> > > > It didn’t dawn on me I could go SCART with this but that makes
> sense. I
> > > just need someone to build me the DB9 cable (though maybe I could
> manage
> > > that little bit of soldering).
> > > >
> > > > Also, uptopic was a mention of a modern monitor that would “just
> work”
> > > with the Amiga, etc. so if that could work with CoCo and MM/1, I’d love
> > to
> > > have something like that. I need a new monitor for it anyway ;-)
> > > >
> > > > --
> > > > Allen Huffman - PO Box 7634 - Urbandale IA 50323 - 515-999-0227
> > > (vmail/TXT only)
> > > > http://www.subethasoftware.com -
> > > https://www.facebook.com/subethasoftware
> > > >
> > > >
> > > >
> > >
> > >
> > > --
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> > > Coco at maltedmedia.com
> > > https://pairlist5.pair.net/mailman/listinfo/coco
> > >
> >
> > --
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> >
>
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