Dell Chromebook 3110, Service Manual

Page: 34 / 68

Steps
1. Unroute the battery cable from the routing channels between the system board and 3-cell battery.
2. Remove the screw (M2x3) that secures the WLAN card bracket to the WLAN card module on the system board.
3. Lift and remove the WLAN card bracket from the WLAN card module that secures the two antenna cables.
4. Disconnect the WLAN antenna cables from the connectors on the WLAN card module.
5. Remove the screw (M2x4) that secures the display-cable bracket to the display-cable connector on the system board.
6. Remove the display-cable bracket from the display-cable connector on the system board.
7. Disconnect the display cable, touchpad Flexible Flat Cable (FFC), keyboard Flexible Printed Circuits cable (FPC), and speaker
cable from the connectors on the system board.
8. Peel the conductive tape that secures the display cable on the display hinges.
9. Peel back the display cable from the system board.
10. For systems with USB Type-A port on the right side, remove the two screws (M2x4) that secure the right I/O bracket to
the palm-rest assembly.
11. Lift and remove the right I/O bracket from the palm-rest assembly.
12. Remove the screw (M2.5x5) and the screw (M2x4) that secure the left I/O bracket to the palm-rest assembly.
13. Remove the left I/O bracket from the palm-rest assembly.
14. For systems with USB Type-A port on the right side, remove the seven screws (M2x4) that secure the system board to the
palm-rest assembly.
15. For systems without USB Type-A port on the right side, remove the four screws (M2x4) that secure the system board to
the palm-rest assembly.
16. Carefully lift and remove the system board from the left side.
34 Removing and installing components