Installing System Board; Real Time Clock; Removing The Coin-Cell Battery - Dell 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.
1
NOTE: If your computer has a WWAN card, then SIM card tray installation is a requirement.
9 Install the:
a Heatsink module
Connect the following cables from the system board
1 LED board cable
2 USH cable
3 Touchpad cable
b Connect the G-sensor and eDP cable
c Place the eDP bracket on the eDP cable and replace the 2 (M2 x 1.7L) screw on the bracket.
d Connect the IR camera and touch screen cables
e WWAN card
f WLAN card
g SSD card
h Battery
i Base cover
j SIM card tray
k Micro SD
NOTE: To install both cards if equipped.
10 Connect the cables:
11 Follow the procedure in

Real time clock

Removing the Coin cell battery
1 Follow the procedure in
2 Remove the:
a Mircro SD card
b SIM card tray
NOTE: SIM Card tray is available only if your computer is shipped with a WWAN card.
c Base cover
d Battery
e SSD card
f WLAN card
g WWAN card
h Heat sink assembly
30 Removing and installing components
After working inside your computer.
Before working inside your computer.