I picked two of these things up at an auction. Can't find any information online but I thought I'd poke my head in here to see if anyone'd like to make me an offer. (I know I'm a stranger to yall but I've got something like fifteen hundred eBay feedback.) They seem brand new -- I took one out of its sealed antistatic bag for photos. The board says LASER PROJECTOR CONTROL BOARD (LPCB) / PCB: 107697-01 REV B / ASSEMBLY: 107786-01 REV B.

Images here: https://imgur.com/a/n2qHARB