After a power outage, a Marconi comes back to it's defaults. It needed to be reset to the values in elog 5530. I'm putting a label on the Marconi so we don't have to look it up next time.
Before fixing the Marconi, POY11, AS11 and AS55 all looked like noise, no real signals, even though the arm is flashing. Now they all look PDH-y, so things are better.