Dell P48F - Installing the LED Board; Removing the Heat Sink Assembly

Installing the touchpad button
1 Place the touchpad button into the slot on the system board.
2 Tighten the screws to secure the touchpad button to the system board.
3 Connect the touchpad button cable to the connector on the system board.
4 Install the:
a dock frame
b battery
c base cover
5 Follow the procedure in After working inside your computer.
Removing the optional SmartCard reader board
1 Follow the procedure in Before working inside your computer.
2 Remove the:
a base cover
b battery
c hard drive assembly or M.2 SSD or PCIe SSD
d WLAN card
e WWAN card
f dock frame
3 To remove the SmartCard reader board:
a Disconnect the SmartCard reader board cable from the USH board [1, 2].
b Peel the cable to release from the adhesive.
c Remove the screws that secure the SmartCard reader board to the computer [3].
d Lift the SmartCard reader board from the computer [4].
Removing and installing components
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