Salute!
The older folks must also know that the MIL-STD-1760 and NATO equivalent for the weapon stations is not like the previous planes.
The store stations have remote interface units that are controlled via a mux bus. So they can cut off all power, control signals and so forth to the station. In the old days, with fixed/dedicated signals and power, some interfaces were powered/active as long as the aircraft electrical system was hot. e.g. the AIM-9 needed volts to keep the seeker head spinning ( note the cover they put on before you shut down - it had magnets in it to keep the head from beating itself to death as it spun down) , the Harpoon needed some volts for whatever, and so forth.
Funny, but the cannon might be the hardest thing to service. And the solid state electronics don't need to warm up like the old things I learned on in the 60's and 70's. I would also be nervous in those weapon bays without a very strong bar to keep the doors open, heh heh.
Gums sends...