17 Sep
2007
17 Sep
'07
7:30 a.m.
Chuck Guzis wrote:
I can't identify what equipment this went to;
Stackpole made a LOT of
different keyboards for a LOT of different manufacturers. Unless
someone happens to recognize the keyboard layout from a piece of
equipment they already have, that's as close as you're going to get.
Well a quick google did not find any data on a keyboard encoder
chip. Now who has the databooks on that. Since it looks like a
ASCII keyboard rather than a PC keyboard I would put my bet on
a encoder chip.
On the other hand, the fact that the manufacturer used
a socket for
the controller points to a programmable item; if this was a salvage
item, it may have even been a reprogrammable item. An 87C51 might be
a good start. A shot of the underside around the socket, including
the connections to the power/signal header might cinch the guess.
Good luck.
Cheers,
Chuck