136 Installing System ComponentsInstalling the Control Panel Assembly1 For LED control panel, proceed to step 3. Insert the display module intothe chassis cutout and secure with the two screws.2 Affix the replacement panel to the front of the display module.3 Align the slot in the control panel board with the standoff on the systemchassis and secure with the two Phillips screws. See Figure 3-26. For LEDcontrol panel, skip step 4.4 Connect the display module cable to the control panel board.5 Connect the control panel cable to the control panel board.6 Close the system. See "Closing the System" on page 83.7 If applicable, replace the optional front bezel. See "Removing andReplacing the Optional Front Bezel" on page 818 Reconnect the system to the power source and turn on the system andattached peripherals.SAS Backplane (Service-Only Procedure)Removing the SAS BackplaneWARNING: Only trained service technicians are authorized to remove the systemcover and access any of the components inside the system. Before you begin thisprocedure, review the safety instructions that came with the system.1 If applicable, remove the bezel. See "Removing and Replacing theOptional Front Bezel" on page 81.2 Turn off the system and attached peripherals, and disconnect the systemfrom the electrical outlet.3 Open the system. See "Opening the System" on page 82.CAUTION: To prevent damage to the drives and backplane, you must remove thehard drives from the system before removing the backplane.CAUTION: You must note the number of each hard drive and temporarily labelthem before removal so that you can replace them in the same locations.4 Remove all hard drives. See "Removing a Hot-Swap Hard Drive" onpage 85.5 Disconnect the power cable from the end of the SAS backplane.
