On 10/11/2015 9:42 AM, Michael Thompson wrote: > > We are running out of things to try for debugging the TC12 controller in > the PDP-12. At this point we are really stumped as to why the TC12 doesn't > work correctly. We are going to try a few remaining ideas like running the > TC12 from a laboratory power supply. > > We would welcome any ideas that you have. >
Don't forget about the other more remote possibilities: cables, backplane, bad wrap, supply voltages at the actual card(s) for the mis-behaving channel, etc. JRJ
