No, someone (clearly) had disconnected it; nothing is broken.  The 80SC drive is in there (I may test it later); otherwise the floppy drive is missing its door.  Everything else looks really nice.  I just checked eBay and I'm not in a hurry to pay at least $30 to replace the PSU.

There was also a PRAM battery (oddly from 96, so someone probably changed it; the machine is liberally internally labeled 1990).  I'm assuming there would be some sign of life even with a bad PRAM battery?  (Idk if the LC needs a PRAM battery to boot - so far none of my models have so I'm not familiar with those that do/may.)