My Apple II+ Keyboard Encoder card is faulty and I would like to know if
it's fixable. I've tried several different keyboards and 2 motherboards so
I'm certain it's the encoder. I've ran a keyboard diagnostic and it is
acting as if the control key is always pushed but it is not. It does it
with 3 different keyboards so it's not a "stuck key" problem. Any ideas or
help much appreciated. Thank you.