6Disconnect the display module cable from the control panel board. See Figure 3-22.

7Remove the three screws that secure the control panel board to the system chassis and remove the board. See Figure 3-22.

8Remove the display module:

a Insert the end of paper clip into the hole on the right side of the display module and gently pry off the label.

b Using a T10 Torx driver, remove the two screws that secure the display module to the system chassis.

c Remove the display module from the chassis cutout.

Installing the Control Panel Assembly

1Insert the display module into the chassis cutout and secure with the two Torx screws.

2Affix the display module label to the display module.

3Install the control panel board in the system chassis and secure with the three Phillips screws. See Figure 3-22.

4Connect the display module cable to the control panel board. See Figure 3-22.

5Connect the internal USB key cable and, if applicable, the hard-drive backplane 12C cable. See "Installing the Optional Internal USB Memory Key" on page 90 and "Installing the Backplane Board" on page 102.

6Connect the control panel cable to the control panel board. See Figure 3-22.

7Close the system. See "Opening and Closing the System" on page 68.

8Reconnect the system to the power source and turn on the system and attached peripherals.

9If applicable, install the bezel.

Installing System Components

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Dell R300 owner manual Installing the Control Panel Assembly, 115