Apple ][ keyboard encoder

From: James Willing <jimw_at_agora.rdrop.com>
Date: Mon Sep 14 16:54:03 1998

On Mon, 14 Sep 1998, Tony Duell wrote:

> I was delving in my pile of odd bits and I found the encoder board for an
> Apple ][ keyboard. This is the later version with the slide switch to
> select between reset and ctrl-reset. It's marked 'Encoder Discrete
> Keyboard 605-X105-__ Copyright Apple Computer 1979'
>
> There are 2 unused positions on this board. One is marked S2, and seems
> to be for a DPDT switch. There are X-pads to cut (I guess) when you
> install this switch.
>
> The other is J2, and is for a DE9-P connector.
>
> Does anyone know what they're for? I would guess J2 is for a numeric
> keypad, but I can't be sure.

As I recall, (going a little out on a limb here) you are correct on the J2
connector. That was to support an Apple marketed numeric keypad. And, I
believe that the other switch (along with cutting the marked pads) enables
lower case encoding.

Which of course does little good on an Apple II / II+ with standard ROMs.

(been quite a while since I looked at the prints on that one tho...)

-jim
---
jimw_at_agora.rdrop.com
The Computer Garage - http://www.rdrop.com/~jimw
Computer Garage Fax - (503) 646-0174
Received on Mon Sep 14 1998 - 16:54:03 BST

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