Broadway, VA
Question about the Documentation for 01-LED on System 7.
4) Check that PIA1 pin 39 (CA2) is high and that IC2 pin 1 is low. If not IC2 will not
light the LEDs. There is an inverter (IC7 Pins 11:high, 10:low) between these two points
that performs the signal transition here. Isn't IC 2 Pin 1 tied to the 5VDC rail through R20?
5) Check that pin 15 on IC2 is low enough to be considered a logic 0 and that SW2 is
open. Check that R19 is 4.7k and is connecting to ground on one side. I think IC 2 only has 14 pins.
I could be way off with both of those but thought i'd throw it out there. Also, still loving the ROMS man, looking forward to the new controller!
