Dell 14" Mobile Precision 3470 Mobile Workstation (Silver) - Manual (Page 36)

Installing the LED board
Prerequisites
If you are replacing a component, remove the existing component before performing the installation procedure.
About this task
The following images indicate the location of the LED board and provide a visual representation of the installation procedure.
Steps
1. Align the screw hole on the LED board with the screw hole on the palm-rest assembly.
2. Replace the single screw (M2x3) to secure the LED board to the palm-rest assembly.
3. Route the LED-board cable and connect the cable to the connector on the system board.
CAUTION: Do not route the LED-board cable under the coin-cell battery. Incorrect routing of the LED-board
cable may damage the LED board, LED-board cable, and system board.
Next steps
1. Install the assembly inner frame .
2. Install the battery .
3. Install the wireless card .
4. Install the 2280 solid-state drive or 2230 solid-state drive .
5. Install the base cover .
6. Install the microSD card .
7. Follow the procedure in After working inside your computer .
36 Removing and installing components