[Coco] CoCo2 Strange Side Switches

[Louis Ciotti]

If it is on the second pin down from the upper right that is the CSS line,
and from the datahseet that is to select between two different color
modes.

On Wed, Dec 3, 2014 at 10:20 AM, John Goerzen <jgoerzen at complete.org> wrote:

> Zippster <zippster278 at ...> writes:
>
> >
> > Definitely some kind of mod.  What’s inside the case?
>
> It's still got me puzzled.  Here are photos of the inside:
>
> https://www.dropbox.com/sh/78xxogwuzesjbt7/AAAdhxeRbhH15dAD1prBOih8a?dl=0
>
> I can't say I've ever seen the inside of my CoCo before.  So I have no idea
> what it's trying to do.
>
> On that larger chip (MC6847P), it appears that both switches have a wire
> connected to one of its legs - the second down from the top on the right.
> It is a little hard to determine where the other wire on that chip is
> going,
> but I think it's the top on the right.
>
> Then there's that wire to the smaller chip, and it's connected to the
> top-right leg of it.
>
> Does this give any clues?
>
> John
>
> >
> > - Ed
> >
> > > On Dec 3, 2014, at 8:23 AM, John Goerzen <jgoerzen <at> complete.org>
> wrote:
> > >
> > > Hi,
> > >
> > > So I got a lot of random untested CoCo parts off eBay yesterday.  It
> > > included a CoCo 2 which seems to have been modified or something.  On
> its
> > > left side are two unlabeled switches:
> > >
> > > https://www.dropbox.com/s/avmph8x7oykd222/coco-switches.jpg?dl=0
> > >
> > > Anybody seen this before?  Any idea what it's about?
> > >
> > > I haven't plugged it in or anything yet, because I want to understand
> what
> > > these switches are about first (if possible).
> > >
> > > Obviously, my original CoCo 2 doesn't have these.
> > >
> > > Thanks,
> > >
> > > John
> > >
> > >
> > > --
> > > Coco mailing list
> > > Coco <at> maltedmedia.com
> > > https://pairlist5.pair.net/mailman/listinfo/coco
> >
>
>
>
>
>
> --
> Coco mailing list
> Coco at maltedmedia.com
> https://pairlist5.pair.net/mailman/listinfo/coco
>