Did you ever figure out your problem with the database feature? I just realized my database is never lighting up now. I took my drop target assembly out for a cleaning and I that's when it stopped working. I'll have to see if there's something I missed when putting it back together.

OK, well I resolved it for myself.

I was getting Database feature all the time until the pulled off the drop target assembly to clean. There's a switch attached to the bottom of the assembly. The switch is called "Drop Target" in Test. If the switch is not triggered when the drop target under the skull is hit you will not get the database to light. As royce6135 said, Database is lit after activating lock (dropping the drop target) but before loading the cannon.

My switch was not being triggered when I put the drop target assembly back on and therefor Database was never lighting.