[Coco] So is this a G board?

[Arthur Flexser]

If you're asking about that wire running to one of the PIAs, I'm pretty
sure that's part of RS's official 64K upgrade used by the repair centers.
Notice that it has two warranty stickers on the bottom, presumably the
second one applied after someone brought it into RS to have it "officially"
upgraded to 64K.

I suppose RS wanted to make it possible to check for 64K by looking at the
status of one of the PIA lines, but since I don't think other people with
64K upgrades followed that convention, this unreliable method of checking
for 64K was pretty much ignored in favor of more straightforward software
methods.

Art


On Fri, Jun 28, 2013 at 12:49 AM, Retro Canada <retrocanada76 at gmail.com>wrote:

> another thing this board has 2 mc1372. why? there is only one video output!
>
> Sent from my iPhone
>
> On 2013-06-28, at 12:14 AM, Retro Canada <retrocanada76 at gmail.com> wrote:
>
> > Hi i got this beautiful great white coco
> >
> > http://twitter.com/RetroCanada76/status/350422134088167424/photo/1
> >
> > its was sealed, never opened. once opened i found this
> >
> > http://twitter.com/RetroCanada76/status/350465048709320704/photo/1
> >
> > which is exactly this guy here posted
> >
> > http://www.doki-doki.net/~lamune/computers/coco/26-3003b/P2223732-r.html
> >
> > This machine doesn't run DWCC1 gives i/o error and my superide hangs
> when looking for the Cf. everything else seems to work except the artifact
> colors:
> >
> > http://twitter.com/RetroCanada76/status/350464227212922880/photo/1
> >
> > http://twitter.com/RetroCanada76/status/350464318850088962/photo/1
> >
> > green and pink?
> >
> > tried to regulate the trimmers but no success...
> >
> >
> > Sent from my iPhone
>
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