Dell PowerEdge R740xd2 EMC Installation and Service Manual - Page 154

Control panel, Removing the left control panel

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Control panel Removing the left control panel Prerequisites 1. Follow the safety guidelines listed in Safety instructions. 2. Power off the system and all attached peripherals. 3. Disconnect the system from the electrical outlet, and disconnect the peripherals. 4. Open the drive bays, remove all drives, and then close the drive bays. 5. Remove the power supply units. 6. Remove the system from the rack and place it on an ESD work bench. For more information, see the Rail Installation Guide available at www.dell.com/poweredgemanuals. 7. Remove the system cover. 8. If installed, remove the front bezel. 9. Remove the cable chain assembly. 10. Disconnect the control panel cable from the system board connector. Steps 1. Remove the cable from the left ear cable channel. NOTE: Ensure that you note the routing of the cables as you remove them from the system board. You must route the cables properly when you replace them to prevent the cables from being pinched or crimped. 2. Using a Phillips #1 screwdriver, remove the screws that secure the left control panel assembly to the system. 3. Holding by the sides, remove the left control panel assembly away from the system. Figure 136. Removing the left control panel 154 Installing and removing system components

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Control panel
Removing the left control panel
Prerequisites
1.
Follow the safety guidelines listed in
Safety instructions.
2.
Power off the system and all attached peripherals.
3.
Disconnect the system from the electrical outlet, and disconnect the peripherals.
4.
Open the drive bays
, remove
all drives
, and then
close the drive bays.
5.
Remove the
power supply units
.
6.
Remove the system from the rack and place it on an ESD work bench. For more information, see the
Rail Installation Guide
available at
www.dell.com/poweredgemanuals
.
7.
Remove the system cover
.
8.
If installed,
remove the front bezel
.
9.
Remove the
cable chain assembly
.
10.
Disconnect the control panel cable from the system board connector.
Steps
1.
Remove the cable from the left ear cable channel.
NOTE:
Ensure that you note the routing of the cables as you remove them from the system board. You must route
the cables properly when you replace them to prevent the cables from being pinched or crimped.
2.
Using a Phillips #1 screwdriver, remove the screws that secure the left control panel assembly to the system.
3.
Holding by the sides, remove the left control panel assembly away from the system.
Figure 136. Removing the left control panel
154
Installing and removing system components