Hello,
I'm in the process of making a small 'daughter card' for my Mk2cr and looking at the graphic file here for the electrical signals. I understand all of signals nomenclature except Pin 20 labeled 'Switch'. What is this signal's function? I beeped out the the connections to the DVI connector and Pin 20 doesn't appear to be electrically connected to the DVI connector (I believe it transitions to PIN 1 on the DVI cable to PCB connector, IIRC).
Regards,
I