Steps
1. Remove the single (M2x2.5) screw from the finger print reader bracket and remove the bracket from the computer.
2. Disconnect the fingerprint reader FPC from the system board.
3. Remove the single (M2x2) screw and lift the bracket from the antenna cables.
4. Disconnect the WLAN antenna cables from the WLAN module on the system board.
5. Remove the single (M2x2) screw and lift the bracket from the WWAN card.
6. Disconnect the WWAN antenna cable and release the cable from the rubber guides on the system board.
7. Remove the two (M2x2) screws securing the display cable bracket to the system board.
8. Lift to remove the display cable bracket from the computer.
9. Disconnect the display, camera, touch screen, sensor board cables from the system board and unroute them from guiding
tabs.
10. Disconnect the speakers board FPC, tweeter cable, audio board FFC, touchpad FFC, USH board FFC and, LED board FFC
from the system board.
11. Remove the four (M2x2.5) screws (For computer configuration with fingerprint reader on power button) or five (M2x2.5)
screws (For computer configuration without fingerprint reader), two M2x4 screws, and two M2x3 screws securing the
system board in place.
12. Carefully slide the system board out of the computer.
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 the system board and provides a visual representation of the installation procedure.
60
Removing and installing components
Summary of Contents for Latitude 7520
Page 14: ...Major components of your system 1 Base cover 14 Removing and installing components ...
Page 18: ...About this task 18 Removing and installing components ...
Page 37: ...Figure 2 Display assembly with WLAN antenna Removing and installing components 37 ...
Page 38: ...Figure 3 Display assembly with WLAN and WWAN antenna 38 Removing and installing components ...
Page 43: ...Removing and installing components 43 ...
Page 61: ...Removing and installing components 61 ...