OK. Found and installed a 74LS32 at U30.
There are all kinds of jumper pins (with
wire wrap wires connecting various pins)
and DIP switches on this thing.
I started to try to describe all the pins
and switches on this board... gave up when
I got to 200 lines. There are 11 blocks of
jumpers and two sets of DIP switches. Could
some kind soul email me the config info (at
least for the serial port) on this thing?
Thanks,
Bill Sudbrink