I have a Mega ST keyboard connected to my Falcon (thanks to Beetle). A few keys, notably 7// and äÄ do not respond but I cannot identify a complete scanning column on the keyboard matrix.
Is it worth to just try cleaning the keyboard, keycaps and the bubble foil inside?
Simon Sunnyboy/Paradize - http://paradize.atari.org/Stay cool, stay Atari!
1x2600jr, 1x1040STFm, 1x1040STE 4MB+TOS2.06+SatanDisk, 1xF030 14MB+FPU+NetUS-Bee