So, some heat applied to the row seven current limiting resistor fixed the dead row number seven. As for the doubled up column, I've determined that the column is shorted to Vcc on the MCU to transistor array link. That has to be an assembly issue. An unpopulated board doesn't have the problem.
So now the only worry is the soft power. Can it handle the load? Why is it dropping out to two volts in the present circuit? The short doesn't draw that much current, but since I don't know exactly where it is, I can't be sure of its full effect on the circuit.
I'd like to just cut the column signal line to see if I can get rid of the soft power problem, but its really hard physically. Plus there is no guarantee the as to the extent of the short. Maybe I should just test the load carrying capability with a false load? But what if the load is not the real issue? Hmmm. Hmmm. I will have to ponder it for a while.
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