Speaking of keyboard trouble: do NOT attempt to wash an LK201 keyboard in any kind of
liquid.  The "switches" are just membrane thingies, and they are not even close
to liquid-tight.  Any washing will put liquid inside your keyboard, wrecking it.  I found
this out the hard way (after spilling stuff on the keyboard -- washing it only made things
worse).
It may be possible to dismantle those switches, but it looks hard.  It may be worse than
that...
        paul