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Groups > comp.sys.apple2 > #3075

Re: Apple II+ Keyboard repair

From kynrek <kynrek@gmail.com>
Newsgroups comp.sys.apple2
Subject Re: Apple II+ Keyboard repair
Date 2011-10-17 16:28 -0700
Organization http://groups.google.com
Message-ID <d04ac31f-2588-484f-91f5-e1ca59efa4cb@er6g2000vbb.googlegroups.com> (permalink)
References <4541f86e-9bf5-4045-af7c-eff0081e6322@u2g2000yqi.googlegroups.com> <184588f5-2627-4a13-b447-2b27445916ca@o19g2000vbk.googlegroups.com>

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On Oct 17, 5:41 pm, rittwage <rittw...@gmail.com> wrote:
> On Oct 17, 1:51 pm, kynrek <kyn...@gmail.com> wrote:
>
> > Someone gave me and apple ii+ but the keyboard did not work at all,
> > only the reset key worked. I replaced the keyboard encoder ic and a
> > few other components on the encoder board and now some of the keys do
> > make characters show on the screen :)
>
> > However the keys are not showing the right characters. for instance
> > the letters s and d both output the letter w, most of the number keys
> > output a ?. I think the individiual key switches might be bad but I'm
> > not sure. I can remove the key caps but I don't know how to get to the
> > switches underneath, I dont see any screws on the metal plate that
> > seperates the top of the keybaord with the  key caps and the underside
> > with the switches underneath.
>
> Where did you find an encoder chip to replace yours?!
>
> -Pete

I got my encoder from this here
http://www.ebay.com/itm/AY5-3600-GI-Vintage-LSI-IC-40-Pin-1978-AY53600-/390121009363
on eBay he is asking 19.99 but I offered 12.95 and he accepted. This
chip brought the keyboard back from the dead. Replacing the other
components was not necessary to get it to start responding but I did
it just to preserve the encoder circuit. :)

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Thread

Apple II+ Keyboard repair kynrek <kynrek@gmail.com> - 2011-10-17 10:51 -0700
  Re: Apple II+ Keyboard repair dog_cow@macgui.com (D Finnigan) - 2011-10-17 18:14 +0000
    Re: Apple II+ Keyboard repair Michael Black <et472@ncf.ca> - 2011-10-17 15:35 -0400
      Re: Apple II+ Keyboard repair dog_cow@macgui.com (D Finnigan) - 2011-10-17 20:45 +0000
  Re: Apple II+ Keyboard repair rittwage <rittwage@gmail.com> - 2011-10-17 14:41 -0700
    Re: Apple II+ Keyboard repair kynrek <kynrek@gmail.com> - 2011-10-17 16:28 -0700
      Re: Apple II+ Keyboard repair Michael J. Mahon <mjmahon@aol.com> - 2011-10-17 19:25 -0500
      Re: Apple II+ Keyboard repair kynrek <kynrek@gmail.com> - 2011-10-17 17:32 -0700
      Re: Apple II+ Keyboard repair Patrick Schaefer <pa.schaefer@web.de> - 2011-10-18 19:35 +0200
        Re: Apple II+ Keyboard repair kynrek <kynrek@gmail.com> - 2011-10-20 17:19 -0700
          Re: Apple II+ Keyboard repair dog_cow@macgui.com (D Finnigan) - 2011-10-21 00:45 +0000
            Re: Apple II+ Keyboard repair Raymond Wiker <raw@rawmbp.lan> - 2011-10-21 06:41 +0200
              Re: Apple II+ Keyboard repair kynrek <kynrek@gmail.com> - 2011-10-24 07:26 -0700
              Re: Apple II+ Keyboard repair kynrek <kynrek@gmail.com> - 2011-10-25 16:43 -0700

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