Dell Inspiron 14 5420 Service Manual - Page 55

Installing the system board

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6. Disconnect the speaker cable from the system board. 7. Lift the latch and disconnect the touchpad cable from the system board. 8. Lift the latch and disconnect the keyboard cable from the system board. 9. Lift the latch and disconnect the keyboard-backlight cable from the system board. 10. Remove the two screws (M2x4) that secure the USB-C port bracket to the system board. 11. Lift the USB-C port bracket from the system board. 12. Remove the two screws (M2x1.8) that secure the system board to the palm-rest and keyboard assembly. 13. Lift the system board at angle off the palm-rest and keyboard assembly, to clear the ports from the port openings. Installing the system board Prerequisites If you are replacing a component, remove the existing component before performing the installation process. About this task The following image indicates the connectors on your system board. 1. display cable 2. power-adapter port cable 3. keyboard-backlight cable 4. keyboard cable 5. touchpad cable 6. battery cable 7. wireless-card cable 8. speaker cable 9. M.2 2230/2280 solid-state drive 10. I/O-board cable 11. fan cable The following image(s) indicate the location of the system board and provides a visual representation of the installation procedure. Removing and installing components 55

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6.
Disconnect the speaker cable from the system board.
7.
Lift the latch and disconnect the touchpad cable from the system board.
8.
Lift the latch and disconnect the keyboard cable from the system board.
9.
Lift the latch and disconnect the keyboard-backlight cable from the system board.
10.
Remove the two screws (M2x4) that secure the USB-C port bracket to the system board.
11.
Lift the USB-C port bracket from the system board.
12.
Remove the two screws (M2x1.8) that secure the system board to the palm-rest and keyboard assembly.
13.
Lift the system board at angle off the palm-rest and keyboard assembly, to clear the ports from the port openings.
Installing the system board
Prerequisites
If you are replacing a component, remove the existing component before performing the installation process.
About this task
The following image indicates the connectors on your system board.
1.
display cable
2.
power-adapter port cable
3.
keyboard-backlight cable
4.
keyboard cable
5.
touchpad cable
6.
battery cable
7.
wireless-card cable
8.
speaker cable
9.
M.2 2230/2280 solid-state drive
10.
I/O-board cable
11.
fan cable
The following image(s) indicate the location of the system board and provides a visual representation of the installation
procedure.
Removing and installing components
55