Dell Inspiron 5490 Service Manual - Page 48

Installing the power button with fingerprint reader (optional

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Steps 1. Remove the two screws (M2.5x5) that secure the right display hinge to the palm-rest and keyboard assembly. 2. Lift the right display hinge. 3. Open the latch and disconnect the power-button cable from the connector on the system board. 4. Disconnect the fingerprint-reader cable from the connector on the power-button board. 5. Remove the two screws (M2x2) that secure the power-button bracket to the palm-rest and keyboard assembly. 6. Remove the two screws (M2x3) that secure the power button to the palm-rest and keyboard assembly 7. Lift the power button with fingerprint reader off the palm-rest and keyboard assembly. Installing the power button with fingerprint reader (optional) Prerequisites NOTE: This procedure is only applicable to computers shipped with a power button with fingerprint reader. If you are replacing a component, remove the existing component before performing the installation procedure. About this task The following image indicates the location of the power button with fingerprint reader and provides a visual representation of the installation procedure. 48 Removing and installing components

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Steps
1.
Remove the two screws (M2.5x5) that secure the right display hinge to the palm-rest and keyboard assembly.
2.
Lift the right display hinge.
3.
Open the latch and disconnect the power-button cable from the connector on the system board.
4.
Disconnect the fingerprint-reader cable from the connector on the power-button board.
5.
Remove the two screws (M2x2) that secure the power-button bracket to the palm-rest and keyboard assembly.
6.
Remove the two screws (M2x3) that secure the power button to the palm-rest and keyboard assembly
7.
Lift the power button with fingerprint reader off the palm-rest and keyboard assembly.
Installing the power button with fingerprint reader
(optional)
Prerequisites
NOTE:
This procedure is only applicable to computers shipped with a power button with fingerprint reader.
If you are replacing a component, remove the existing component before performing the installation procedure.
About this task
The following image indicates the location of the power button with fingerprint reader and provides a visual representation of the
installation procedure.
48
Removing and installing components