Latitude 7390 2-in-1 Owner's Manual

Installing system board

1. Align the system board with the screw holders on the computer.
2. Replace the 6 (M2.0 x 3.0) screws to secure the system board to the computer.
3. Place the USB Type-C bracket on the Type-C module.
4. Replace the 2 (M 1.98 x 4L) screws to secure the USB Type-C bracket to the Type-C module.
5. Route the antenna cable through the routing clips and affix the tapes to secure the antenna cables.
6. Connect the power board and the speaker cable to the system board.
7. Affix the coin cell battery on the speaker cable.
8. Connect the USH board, Touchpad board and LED board cables to the system board.

NOTE: : If your computer has a WWAN card, then SIM card tray installation is a requirement.

9. Install the:
   1. Heatsink module
      Connect the following cables from the system board
      1. LED board cable
      2. USH cable
      3. Touchpad cable
   2. Connect the G-sensor and eDP cable
   3. Place the eDP bracket on the eDP cable and replace the 2 (M2 x 1.7L) screw on the bracket.
   4. Connect the IR camera and touch screen cables
   5. WWAN card
   6. WLAN card
   7. SSD card
   8. Battery
   9. Base cover
   10. SIM card tray
   11. Micro SD

       NOTE: : To install both cards if equipped.

10. Connect the cables:
11. Follow the procedure in After working inside your computer.