Power Button With Optional Fingerprint Reader; Removing The Power Button With Optional Fingerprint Reader - Dell P174G Service Manual

10. Replace the single screw (M2x2) that secures the fingerprint reader bracket to palm-rest and keyboard assembly.
11. Connect the antenna cables to the connectors.
12. Route the two darwin antenna cables, and green P-sensor cable from the routing guide on the I/O daughter-board.
13. Align and place the Darwin antenna cable bracket on the system.
14. Replace the single screw (M2x2) that secures the Drawin antenna cable bracket to palm-rest and keyboard assembly.
15. Replace the 4G WWAN card bracket from the system for the models shipped with a 4G WWAN card.
16. Replace the single screw (M2x2) screw that secures the 4G WWAN card extension bracket to palm-rest and keyboard
assembly for the models shipped with a 4G WWAN card.
Next steps
1. Install the WWAN card.
NOTE: This procedure applies only to computers shipped with a WWAN card installed.
2. Install the base cover.
3. Follow the procedure in

Power button with optional fingerprint reader

Removing the power button with optional fingerprint reader

Prerequisites
1. Follow the procedure in
2. Remove the base cover.
3. Remove the WWAN card.
4. Remove the heat sink.
5. Remove the system board.
6. Remove the I/O daughter-board.
About this task
NOTE: When removing the system board to replace or access other parts, the system board can be removed and installed
with the heat sink attached to simplify the procedure and preserve the thermal bond between the system board and heat
sink.
NOTE: For computers shipped with a fingerprint reader, the power button includes a fingerprint reader module.
The following images indicate the location of the power button with optional fingerprint reader and provide a visual
representation of the removal procedure.
60 Removing and installing components
After working inside your
Before working inside your
computer.
computer.