Gentlepeople,
I'm doing some work with my Pro 380 over the holidays, but have run into a snag
because both my LK201 keyboards are dead. They fail poweron self test -- LEDs
stay on and no response to any keypresses.
The odd thing is that the circuit board itself seems ok; I had a spare board
that tests fine by itself, so I installed it as a replacement control board on
one of those keyboards and now it fails. So that suggests there's something
wrong with the key array that breaks selftest.
I don't understand that because the documentation says a stuck key would
produce a selftest pass along with an indication reporting stuck key. And
while I know LK201 keyboards don't like spilled liquids, one of those keyboards
definitely hasn't been abused that way and I don't see signs the other one has,
either. So having both fail the same way is puzzling.
Any ideas?
I'm considering building a PC keyboard LK201 emulation, should be a fairly
simple bit of Arduino code.
paul
