NEC EXPRESS5800/120Ld, Руководство по обслуживанию, Страница: 119 / 194

Dissasembly and Reassembly 4-47
Replacing the Switches Assembly
The Switches Assembly includes the sleep button, the DC power ON/OFF
Button, the front panel interlock switch and the side panel interlock switch. The
four switches are attached to a single cable harness that connects to the system
board.
1. Power off the system and ensure it is disconnected from the AC power
source.
2. Open and remove the front door and remove the left side panel as described
earlier in this chapter.
3.
Tag and disconnect the Switch Assembly cable connected to the system
board. See Figure 1-5, G for correct location.
4.
The Switch assembly cables are threaded through three cable clamps. The
cable clamps may be released by pressing the tab located below the head of
the clamp. If any of the cable clamps cannot be released, carefully cut the
clamps to allow access to the cables.
5.
Remove the two screws securing the Switch Assembly mounting bracket to
the front of the chassis. See Figure 4-43. Position the assembly outside of
the system.
6. Note the wire color codes and positions of each switch attached to the
mounting bracket. Also, each switch may include an identification label.
7. Using a small Phillips Head screwdriver remove the two push-button
switches from the mounting bracket. Also, remove the front panel interlock
switch from the mounting bracket. See Figure 4-46.
Figure 4-46. Removing the Switches