All the DBB cables were checked that they were connected properly (they were).  The incident power into the
diagnostic breadboard was adjusted to be ~110 mW - it really should be 135 mW.  However at this lower power
level, the interlock still tripped.  The interlock tripped even though the shutter did not open.  I blocked
the input hole to the diagnostic breadboard so that no light could enter.  Under this circumstance the interlock
still tripped.  So obviously it wasn't a light level associated problem even though the interlock message
indicated it was.

    I turned off and then on the two AA and AI chassis associated with the diagnostic breadboard.  This seems
to have reset the problem.

    That said, there's still some work to do to bring the diagnostic breadboard truly back.