I have a couple of LK401 keyboards and they generate a 'keyboard error -
4' error on power up test when attached to a VT420. The problem seems
to be one or more keys that are 'stuck on'.
When the keyboard is turned upside down and shaken I can get the self
test to pass.
Is it possible to open the keyboards and repair this type of problem?
I also have LK411 keyboards that have a PS/2 type of connector, is there
an adapter to let me use these keyboards instead of the LK401s? Are the
signals the same, only the connectors being different?
Doug
