Dell Latitude 5590 - Installing the System Board; Touchpad Buttons Board

Installing the system board
1 Align the system board with the screw holders on the laptop.
2 Tighten the M2.0x3.0 screws to secure the system board to the laptop.
3 Place the metal bracket and tighten the M2.0x5.0 screws on the system board.
NOTE: The metal bracket referred is the USB-C bracket.
4
Connect the LED, mother board and touchpad cable to the system board.
5 Connect the power cable.
6 Connect the display cable on the system board.
7 Place the eDP cable and metal bracket to system board and tighten the M2.0x3.0 screws to secure to the system board.
8 Install the:
a chassis frame
b coin cell battery
c heat sink
d memory module
e SSD card or hard drive
f WWAN
g WLAN card
h battery
i base cover
j SIM card module
9 Follow the procedure in After working inside your computer.
Touchpad buttons board
Removing the touchpad buttons
1 Follow the procedure in Before working inside your computer.
2 Remove the:
a base cover
b battery
c WLAN card
d WWAN
e SSD card or hard drive
f chassis frame
3 To release the touchpad panel:
a Lift the latch and disconnect the SmartCard reader cable from the connector on the system board [1].
b Peel o the SmartCard reader cable from the adhesive [2].
Removing and installing components
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