Installing The Fingerprint-Reader Board - Dell Inspiron 7400 Service Manual

3. Remove the 4-cell battery
4. Remove the fan (4-cell battery)
5. Remove the I/O board.
About this task
The following images indicate the location of the fingerprint-reader board and provides a visual representation of the removal
procedure.
Steps
1. Open the latch and disconnect the power-button cable from the fingerprint-reader board.
2. Open the latch and disconnect the fingerprint-reader board cable from the fingerprint-reader board.
3. Slide and remove the fingerprint-reader board from the securing clip on the palm-rest and keyboard assembly.

Installing the fingerprint-reader board

Prerequisites
If you are replacing a component, remove the existing component before performing the installation process.
About this task
The following images indicate the location of the fingerprint-reader board and provides a visual representation of the installation
procedure.
or the 6-cell battery, whichever applicable.
or the fan (6-cell battery), whichever applicable.
Removing and installing components 53