Dell Inspiron 5490 Service Manual - Page 52

Installing the system board

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4. Open the respective latches and disconnect the touchpad cable, the keyboard-backlight cable, and the keyboard cable from their connectors on the system board. 5. Remove the five screws (M2x2) and the two screws (M2x3) that secure the system board to the palm-rest and keyboard assembly. 6. Lift the system board off the palm-rest and keyboard assembly. Installing the system board Prerequisites If you are replacing a component, remove the existing component before performing the installation procedure. About this task The following image indicates the location of system board and provides a visual representation of the installation procedure. Steps 1. Align the screw holes on the system board with the screw holes on the palm-rest and keyboard assembly. 2. Replace the five screws (M2x2) and the two screws (M2x3) that secure the system board to the palm-rest and keyboard assembly. 3. Connect the touchpad cable, the keyboard-backlight cable, and the keyboard cable to their respective connectors on the system board and close the respective latches. 52 Removing and installing components

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4.
Open the respective latches and disconnect the touchpad cable, the keyboard-backlight cable, and the keyboard cable from their
connectors on the system board.
5.
Remove the five screws (M2x2) and the two screws (M2x3) that secure the system board to the palm-rest and keyboard assembly.
6.
Lift the system board off the palm-rest and keyboard assembly.
Installing the system board
Prerequisites
If you are replacing a component, remove the existing component before performing the installation procedure.
About this task
The following image indicates the location of system board and provides a visual representation of the installation procedure.
Steps
1.
Align the screw holes on the system board with the screw holes on the palm-rest and keyboard assembly.
2.
Replace the five screws (M2x2) and the two screws (M2x3) that secure the system board to the palm-rest and keyboard assembly.
3.
Connect the touchpad cable, the keyboard-backlight cable, and the keyboard cable to their respective connectors on the system
board and close the respective latches.
52
Removing and installing components