Removing the Control Panel Assembly
1. If applicable, remove the bezel. See Removing the Front Bezel.
2. Turn off the system and attached peripherals, and disconnect the system from the electrical outlet and peripherals.
3. Open the system. See Opening the System.
4. Disconnect the control panel cable at back of the control panel board. See Figure3-31.
a. Squeeze the metal tabs on the ends of the cable connector.
b. Gently work the connector out of the socket.

Figure 3-31. Control Panel Removal

5. Disconnect the display module cable from the control panel board. See Figure3-31.
6. Remove the three screws that secure the control panel board to the system chassis and remove the board. See Figure3-31.
7. Remove 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
1. Insert the display module into the chassis cutout and secure with the two Torx screws.
2. Affix the display module label to the display module.
3. Install the control panel board in the system chassis and secure with the three Phillips screws. See Figure3-31.
NOTE: The control panel assembly consists of two separate modules—the display module and the control panel circuit board. Use the following
instructions to remove and install either module.
CAUTION: Many repairs may only be done by a certified service technician. You should only perform troubleshooting and simple repairs as
authorized in your product documentation, or as directed by the online or telephone service and support team. Damage due to servicing that is not
authorized by Dell is not covered by your warranty. Read and follow the safety instructions that came with the product.
NOTICE: Do not pull on the cable to unseat the connector. Doing so can damage the cable.
1
display module label
2
3
display module
4
5
control panel cable
6
7
control panel circuit board