Epson 500 Series - Manual (Page 62)

Replacing the Keyboard
After installing a memory module a numeric coprocessor, follow
these Steps sbeps to replace the keyboard:
1. Carefully lift the keyboard off the top of the computer,tum
it right side up, and align it over the front of the computer.
Make sure the keyboard cables are not twisted.
2. Carefully press the keyboard fordward until the tab on the
keyboad fit into the slots on the computer's cover.
3. Press down on the front of the keyboard until it is securely in
Place.
Connecting Optional Devices 4-17