14 Sep
1998
14 Sep
'98
9:54 a.m.
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
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