10 Apr
2001
10 Apr
'01
4:18 a.m.
Though I haven't studied it in detail, I did peek at the manual that was posted.
It seems that it would be straightforward to "ohm-out" the keypad from the edge
connector, to which the rows and columns are connected, just to ensure that the
connectino integrity of the board is not what's causing the problems. If the
connections between both the port LSI and the edge connector and the key matrix
are good and the keypad really is the problem, the edge connector certainly
offers a good workaround. There are key switches that have removable tops, and,
hence, to which labels can be attached. I have some of these on keyboards, but,
for now, that's where they're staying. With a little rubber cement, today's
high-resolution printers, and a bit of clear nail polish, one ought to be able
to make a useable label for a keytop.
Dick
----- Original Message -----
From: "Sellam Ismail" <foo(a)siconic.com>
To: <classiccmp(a)classiccmp.org>
Sent: Monday, April 09, 2001 9:34 PM
Subject: Re: Kim / Commie keypads
On Mon, 9 Apr 2001, Ross Archer wrote:
Here's an accurate drawing of the whole
board, including the keypad:
http://www.ping.be/kim-1__6502/6502/usrman.html#B
It isn't simply soldered to the board -- it's a "stand-alone" unit,
and some of the legends like "PC" and "GO" would probably not
be found on your garden-variety pocket calculator.
Sure, both those are just labels. The actual mechanism is still just a
pocket calculator keypad (I think).
Sellam Ismail Vintage Computer Festival
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