Apple Macintosh LC 580 - Manual (Page 98)

8 Remove the two retainer screws from the vertical plate.
9 Swing the wire handle out from its storage position. Then grasp the handle and gently
but firmly pull it toward you.
The vertical plate and the logic board to which it’s attached slide all the way
out of the computer.
Swing down the wire handle, and slide
the logic board out of the computer.
Remove both retainer screws from the vertical plate.
90 Appendix B