There are three different variations of the covers, each of which is shaped like a rounded square:

●The two front covers are short in height and are notched to prevent incorrect insertion.

●The right rear cover is taller in height and is notched.

●The left rear cover is taller in height and is not notched.

3.Remove the four black Phillips PM2.5×9.0 screws (2) that secure the top cover to the base enclosure.

4.Turn the device right-side up, with the front toward you.

5.Open the device as far as possible.

6.Remove the black Phillips PM2.0×7.0 screw that secures the top cover to the base enclosure.

38 Chapter 4 Removal and replacement procedures