Dell Vostro 5401 Service Manual - Page 87

Installing the system board - discrete

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Steps 1. Remove two screws (M2.5x4), and lift the left hinge. 2. Remove the transparent sticker covering the display cable to the system board. 3. Open the latch, and disconnect the display cable from the system board. 4. Remove the transparent sticker covering the DC-in port cable to the system board. 5. Disconnect the DC-in port cable from the system board. 6. Lift the mylar cover, and disconnect the fan cable. 7. Peel the adhesive tape, open the latch, and disconnect the I/O cable to the system board. 8. Remove the adhesive stickers. 9. Remove the two screws (M2x3) that secure the USB Type-C port bracket to the system board. 10. Disconnect the speaker cable from the system board. 11. Open the latch, and disconnect the touchpad cable from the system board. 12. Open the latch, and disconnect the keyboard-backlight cable from the system board. 13. Open the latch, and disconnect the keypad cable from the system board. 14. Remove two screws (M2x3) from the system board. 15. Gently release the ports on the system board from the slots on the palm-rest and keyboard assembly and lift the system board off the palm-rest and keyboard assembly. Installing the system board - discrete Prerequisites If you are replacing a component, remove the existing component before performing the installation procedure. About this task The figure indicates the location of the system board and provides a visual representation of the installation procedure. Disassembly and reassembly 87

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Steps
1.
Remove two screws (M2.5x4), and lift the left hinge.
2.
Remove the transparent sticker covering the display cable to the system board.
3.
Open the latch, and disconnect the display cable from the system board.
4.
Remove the transparent sticker covering the DC-in port cable to the system board.
5.
Disconnect the DC-in port cable from the system board.
6.
Lift the mylar cover, and disconnect the fan cable.
7.
Peel the adhesive tape, open the latch, and disconnect the I/O cable to the system board.
8.
Remove the adhesive stickers.
9.
Remove the two screws (M2x3) that secure the USB Type-C port bracket to the system board.
10.
Disconnect the speaker cable from the system board.
11.
Open the latch, and disconnect the touchpad cable from the system board.
12.
Open the latch, and disconnect the keyboard-backlight cable from the system board.
13.
Open the latch, and disconnect the keypad cable from the system board.
14.
Remove two screws (M2x3) from the system board.
15.
Gently release the ports on the system board from the slots on the palm-rest and keyboard assembly and lift the system
board off the palm-rest and keyboard assembly.
Installing the system board - discrete
Prerequisites
If you are replacing a component, remove the existing component before performing the installation procedure.
About this task
The figure indicates the location of the system board and provides a visual representation of the installation procedure.
Disassembly and reassembly
87