Switch settings: Facit 4070 tape punch

[Dennis Boone]

 > > AY-5-1013 40 pin dip (cpu?)

 > UART, I think.  I know I've run into that number somewhere before.

If the 14411 is a baud rate generator, then this must be a uart,
especially as now that I look at the traces, the puzzling 8-pack
switches 1-5 go right to it.

FWIW, The rest of the label is "GIMT 7816U".  No logo.

 > > MC14411P 24 pin dip (uart?)

 > Baud rate generator.  Look for a crystal somewhere close to that part.

Yup:

ITT
4729
7903

 > > 5-switch dip pack labelled with baud rates 75-600

 > Bet you can trace some of the connections from that one to that MC14411
 > chip.

Yup, a whole half inch away.

De