[Coco] Weird CoCo 2 keyboard problem -- any ideas?

[John W. Linville]

It seems unlikely to me that the cable is the problem, since the
unshifted keys on that column work fine, and the shifted keys on all
the other keyboard columns work fine.  The problem would seem to be
in the keyboard matrix itself, perhaps either a shorted diode or a
broken trace being opened when the shift key is depressed.

Anyway, with the whole keyboard column effected the problem seems a lot
less mysterious than originally thought.  Thanks for all the advice.

John

On Sat, Mar 30, 2013 at 02:16:29PM -0400, Arthur Flexser wrote:
> Before fiddling with all the tiny screws, make sure the problem isn't with
> the ribbon cable!
> 
> Art
> 
> On Sat, Mar 30, 2013 at 12:44 PM, John W. Linville
> <linville at tuxdriver.com>wrote:
> 
> > On Sat, Mar 30, 2013 at 12:01:46PM -0400, John W. Linville wrote:
> >
> > > Swapping-out the keyboard assembly seems like a logical next step...
> >
> > The problem follows the keyboard.  I'm not looking forward to all
> > the tiny screws, but at least it isn't secured w/ melted plastic like
> > some other CoCo keyboards...
> >
> > --
> > John W. Linville                Someday the world will need a hero, and you
> > linville at tuxdriver.com                  might be all we have.  Be ready.
> >
> > --
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> >
> 
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-- 
John W. Linville		Someday the world will need a hero, and you
linville at tuxdriver.com			might be all we have.  Be ready.