Apple Macintosh PowerBook 190 Series - Manual (Page 159)

9 Carefully pull the keyboard forward to loosen the four tabs at the top. Be very careful to
avoid pulling the keyboard out too far. The cable attaching the keyboard to the computer
is very short.
This action should move the top edge of the keyboard out of its enclosure,
allowing you to grasp and free the entire keyboard.
Gently slide the keyboard away from the display a short distance to disengage these tabs.
WARNING Don’t pull the keyboard away from
the display more than 3/8". If you pull the keyboard
away from the display more than 3/8", you may
pull this cable out of its socket.
154 Appendix C