Dell 4100, 200, 180 service manual Keylocks on Computer’s Back Panel

To remove a computer cover, follow these steps:

1.Turn the cover’s keylocks on the back panel of the computer to the unlocked position (see Figure 4-2).

keylock (2)

Figure 4-2. Keylocks on Computer’s Back Panel

2.Loosen the three screws along the back edge of the cover (see Figure 4-1).

3.Slide the cover toward the back of the computer an inch or so. Then grasp the top of the cover at both ends, and lift it straight away from the chassis.

Removing and Replacing Parts 4-3