Dell Vostro 5402 Service Manual - Page 63

Removing the power button and optional fingerprint reader - discrete, Installing the power button

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Removing the power button and optional fingerprint reader discrete Prerequisites 1. Follow the procedure in before working inside your computer. 2. Remove the base cover. 3. Remove the battery (3-cell or 4-cell). 4. Remove the system fan. 5. Remove the M.2 2280 SSD or M.2 2230 SSD. 6. Remove the I/O board. 7. Remove the coin-cell battery. About this task The figure indicates the location of the power button with optional fingerprint reader and provides a visual representation of the removal procedure. Steps 1. Unplug the fingerprint reader cable from the connector on the palm-rest and keyboard assembly. 2. Lift the latch, and unplug the I/O cable from the connector on the palm-rest and keyboard assembly. 3. Remove the I/O cable from the palm-rest and keyboard assembly. 4. Remove the two screws (M2x2.5) that secure the power button with optional fingerprint reader to the palm-rest and keyboard assembly. 5. Lift the power button with optional fingerprint reader, along with the fingerprint reader cable, off the palm-rest and keyboard assembly. Installing the power button with finger reader - discrete Prerequisites If you are replacing a component, remove the existing component before performing the installation procedure. Disassembly and reassembly 63

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Removing the power button and optional fingerprint reader -
discrete
Prerequisites
1.
Follow the procedure in
before working inside your computer
.
2.
Remove the
base cover
.
3.
Remove the battery (
3-cell
or
4-cell
).
4.
Remove the
system fan
.
5.
Remove the
M.2 2280 SSD
or
M.2 2230 SSD
.
6.
Remove the
I/O board
.
7.
Remove the
coin-cell battery
.
About this task
The figure indicates the location of the power button with optional fingerprint reader and provides a visual representation of the
removal procedure.
Steps
1.
Unplug the fingerprint reader cable from the connector on the palm-rest and keyboard assembly.
2.
Lift the latch, and unplug the I/O cable from the connector on the palm-rest and keyboard assembly.
3.
Remove the I/O cable from the palm-rest and keyboard assembly.
4.
Remove the two screws (M2x2.5) that secure the power button with optional fingerprint reader to the palm-rest and
keyboard assembly.
5.
Lift the power button with optional fingerprint reader, along with the fingerprint reader cable, off the palm-rest and
keyboard assembly.
Installing the power button with finger reader - discrete
Prerequisites
If you are replacing a component, remove the existing component before performing the installation procedure.
Disassembly and reassembly
63