Zenith Data Systems Z-171 PC Series Service Manual page 61

Page 4-17
Disassembly/Reassembly
Figure 4-13: Keyboard
Refer to Figure 4-14 for the following procedures for separating the key-
board halves.
5. | Remove the two rubber O-rings from the keyboard hinge pins.
NOTE: The case is secured by some small tabs in the center of the back
and at the center of the two sides. Be very careful not to break these
off while trying to separate the case halves.
7. Carefully pry the keyboard case halves apart while working the
screwdriver around the edges.