In Progress Will I ever enter - The Twilight Zone

[AlexP]

OK, pins are counted counter clockwise from the dot on the top, so that is pin 15, i.e. D5. I don't have a lose CPU to follow the layout but if you want to check you could measure continuity from pin 15 U7 to pin 19 on the header going to the PDB, then remove the cable and see if that is open then. Was the right pop stuck on?

Yes the right pop was stuck on and at least one switch row was shorted to ground.

I had a replacement en route, will see about getting this one repaired.

 

[drhex]

OK, so D5 indeed. Was it row 6? Happy to take a look at the CPU, shouldn't be too difficult...