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Re: Apple II+ Keyboard repair



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. :)