Dell Latitude 5430 Chromebook Service Manual - Page 55

Palm-rest and keyboard assembly

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Insert the system board at an angle for the system board connectors to fit into the port openings of the computer chassis. Gently lower the system board into the computer chassis and ensure not to cover the flexible cables such as the fingerprint reader cable, touchpad cable, keyboard cable, and keyboard-backlit cable near the cable routing. 2. Align the screw holes on the system board with the screw holes on the palm-rest and keyboard assembly. 3. Replace the five screws (M2x2) that secure the system board to the palm-rest and keyboard assembly. 4. Replace the two screws (M2x4) that secure the left type-c bracket to the system board. 5. Replace the two screws (M2x4) that secure the right type-c bracket to the system board. 6. For 2-in-1 configurations, connect the power-button cable to the connector on the system board. 7. Connect the fingerprint cable to the connector on the system board. 8. Connect the speaker cable to the system board. 9. Adhere the tapes that secure the antenna cables to the system board and also adhere the black adhesive tape to the M.2 solid-state drive slot to the system board. 10. Connect the touchpad cable to the connector on the system board. 11. Connect the keyboard cable to the connector on the system board. 12. Connect the keyboard-backlight cable to the connector on the system board. 13. For 2-in-1 configurations, connect the volume-control cable to the connector on the system board. Next steps 1. Install the display assembly. 2. Install the fan. 3. Install the heat sink. 4. Install the touchpad. 5. Install the speakers. 6. Install the volume-control board. 7. Install the power-button board 8. Install the WWAN card. 9. Install the wireless card. 10. Install the M.2 2230 solid-state drive. 11. Install the battery. 12. Install the base cover. 13. Install the SD card. 14. Install the SIM card. 15. Follow the procedure in After working inside your computer. Palm-rest and keyboard assembly Removing the palm-rest and keyboard assembly Prerequisites 1. Follow the procedure in Before working inside your computer. 2. Remove the SIM card. 3. Remove the SD card. 4. Remove the base cover. 5. Remove the battery. 6. Remove the M.2 2230 solid-state drive. 7. Remove the wireless card. 8. Remove the WWAN card. 9. Remove the power-button board. 10. Remove the volume-control board. 11. Remove the speakers. 12. Remove the touchpad. Removing and installing components 55

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Insert the system board at an angle for the system board connectors to fit into the port openings of the computer
chassis. Gently lower the system board into the computer chassis and ensure not to cover the flexible cables such as
the fingerprint reader cable, touchpad cable, keyboard cable, and keyboard-backlit cable near the cable routing.
2.
Align the screw holes on the system board with the screw holes on the palm-rest and keyboard assembly.
3.
Replace the five screws (M2x2) that secure the system board to the palm-rest and keyboard assembly.
4.
Replace the two screws (M2x4) that secure the left type-c bracket to the system board.
5.
Replace the two screws (M2x4) that secure the right type-c bracket to the system board.
6.
For 2-in-1 configurations, connect the power-button cable to the connector on the system board.
7.
Connect the fingerprint cable to the connector on the system board.
8.
Connect the speaker cable to the system board.
9.
Adhere the tapes that secure the antenna cables to the system board and also adhere the black adhesive tape to the M.2
solid-state drive slot to the system board.
10.
Connect the touchpad cable to the connector on the system board.
11.
Connect the keyboard cable to the connector on the system board.
12.
Connect the keyboard-backlight cable to the connector on the system board.
13.
For 2-in-1 configurations, connect the volume-control cable to the connector on the system board.
Next steps
1.
Install the
display assembly
.
2.
Install the
fan
.
3.
Install the
heat sink
.
4.
Install the
touchpad
.
5.
Install the
speakers
.
6.
Install the
volume-control board
.
7.
Install the
power-button board
8.
Install the
WWAN card
.
9.
Install the
wireless card
.
10.
Install the
M.2 2230 solid-state drive
.
11.
Install the
battery
.
12.
Install the
base cover
.
13.
Install the
SD card
.
14.
Install the
SIM card
.
15.
Follow the procedure in
After working inside your computer
.
Palm-rest and keyboard assembly
Removing the palm-rest and keyboard assembly
Prerequisites
1.
Follow the procedure in
Before working inside your computer
.
2.
Remove the
SIM card
.
3.
Remove the
SD card
.
4.
Remove the
base cover
.
5.
Remove the
battery
.
6.
Remove the
M.2 2230 solid-state drive
.
7.
Remove the
wireless card
.
8.
Remove the
WWAN card
.
9.
Remove the
power-button board
.
10.
Remove the
volume-control board
.
11.
Remove the
speakers
.
12.
Remove the
touchpad
.
Removing and installing components
55