Removing The System Unit's Cover - Sun Microsystems SPARCstation 2 Service Manual

Removing the System Unit's Cover

Figure 3-1 shows how to remove the system unit's cover. Three tabs on the
front of the cover fit into three slots in the chassis. These tabs secure the front
of the cover to the chassis. A security loop secured to the cover goes through
the bottom of the chassis.
To remove the cover and gain access to the FRUs inside the system unit:
1. Make sure that the power is turned off to your system unit, but that the
power cord remains plugged in to the system unit and to the power
source.
See "Halting the System" earlier in this chapter.
2. Remove the top cover from the system unit.
Do the following in sequence:
Remove the two screws holding the cover to the back panel (see
°
Figure 3-1).
Grasp the sides of the cover from the rear and tilt the cover until the
°
security loop clears the chassis (see Figure 3-2).
Gently push the cover forward about 1/2 inch (13 mm) so that the plastic
°
tabs clear the chassis.
Remove the cover by lifting vertically.
°
Warning – Before powering up your system again, be sure to replace the top
cover. See "Replacing the System Unit's Cover" towards the end of Chapter 4.
It is not safe to operate the SPARCstation 2 without its top cover in place
Preparing to Work on the System
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