I got my hands on an ATR8000 but unfortunately it doesn't work. You can turn it on, the light goes on, and it hums a little. Now, if I connect my Atari to it and boot it up, the keyboard locks up. No drives attached, just the cable to the Atari. Turn on ATR8000, turn on Atari. Atari boots, looks fine, but no keyboard. Turn off ATR8000 ... keyboard comes back to life.
I have no idea what to look at. Here is a quick snap I took with the cover off. Help me Obi-one, your my only hope.