Don't try and fix it! I tried to get my mate (engineer) to fix mine and it didn't turn out well..these things are fragile after 20 years lol
It will run without it on "memory" but it wont really be drivable. The black socket is attached internally to the board and usually when those two screws are removed it breaks the solder connections and ruins it.
My suggestion would be to source a good condition working AFM, so yes you are up for another unit.