Hi again Guys,
My Kaypro II keyboard started giving me some grief today...
There are two symptoms:
1) The modifier keys stop working, no Ctrl, Shift (either
side) or Caps-lock.
2) Keyboard generates spurious keypresses when other keys
are pressed, for example, pressing BACKSPACE seems to
generate a whole string of keystrokes, although pressing
very lightly usually works.
The interesting part is that it works correctly for a few
seconds after power-up, and then begins to exhibit the
symptoms above (sometimes it takes a minute or two).
I took it apart, and found many sets of pads, and with foil
disks that press down on them - at first I though it was for
contact, however the foil disks have a film to make them non-
conduction, so I am assuming it's capacitive (?)
Cleaned all the pads, disks and board in general, put it back
together with no noticable change in behaviour.
Anyone run across this before? Is it a know problem? Is there
a known solution?
Regards,
Dave
--
dave04a (at) Dave Dunfield
dunfield (dot) Firmware development services & tools: www.dunfield.com
com Collector of vintage computing equipment:
http://www.parse.com/~ddunfield/museum/index.html
Received on Mon Feb 21 2005 - 15:45:39 GMT