Quote Originally Posted by john-100 View Post
from the photos I can see the printerport adaptor uses the MOSCHIP MCS98005V-BA

Attachment 433804


on the photo of the C22 board I can not read the IC numbers but expect they are octal buffers like the 74ACT245

Attachment 433806


I would expect to see 2 LEDs flicker while rotating rotary dial

and 2 LEDs to be on to indicate the possition of the switches

another LED to be a power ON indicator

John
Ok that picture labeled only plugged into pc does not have the mpg plugged into it that is only plugged into the pc