The keyboard and the rack boards are not interchangeable, but the display itself is, if you've got some soldering skillz. (The rack always uses the vacuum fluorescent displays - it can't be replaced by an LCD display.)
But you say you've got a keyboard display board - does it really have the LCD display (blue-purple backlit), or is it the normal vacuum fluorescent display (bluish segmented lettering on a black background)?
Sorry dude been offline! Its not the LCD, its the standard calculator type one. I'd have to get my tech to de-solder it from the board. Whats it worth to you?
Whoa - you don't have to desolder the display - I'd want the whole board. Still want to sell it? Or are you hanging on to it for parts? I couldn't pay much - ASR-10 prices are falling like cold stones lately. And I'm USA, so shipping from Australia's gonna sting. Lemme know.