Installing the control panelPrerequisitesCAUTION: Many repairs may only be done by a certified service technician. You should only perform troubleshooting and simplerepairs as authorized in your product documentation, or as directed by the online or telephone service and support team. Damagedue to servicing that is not authorized by Dell is not covered by your warranty. Read and follow the safety instructions that areshipped with your product.1 Follow the safety guidelines listed in the Safety instructions section.2 Follow the procedure listed in the Before working inside your system section.3 Keep the Phillips #2 screwdriver ready.Steps1 Slide the left side of the control panel into the chassis so that the left tab on the control panel aligns with the slot on the chassis walland the top left tab aligns with the slot on the top of the chassis.2 Pull the display module cable through the opening slot in the front and into the chassis.3 Slide the display module cable into the plastic cable guide.4 Fix the cable guide to the chassis by screwing the two retaining screws.5 Push the right side of the control panel until the top right tab aligns with the top of the chassis and the control panel snaps into place.CAUTION: The display module connector is a ZIF (zero insertion force) connector. Ensure that the locking tab on theconnector is released before removal and insertion. The locking tab must be engaged after insertion.6 Connect the display module cable to the control panel board.Figure 84. Installing the control panel1 locks on the control panel (7) 2 control panel3 cable guide retaining screw (2) 4 cable guide5 display module cableInstalling and removing system components 153