Dell Latitude 5550 Owners Manual - Page 101

Installing the power button with an optional fingerprint reader

Page 101 highlights

3. Remove the base cover. 4. Remove the 4G WWAN card or 5G WWAN card, as applicable. 5. Remove the wireless card. 6. Remove the memory modules. 7. Remove the M.2 2230 or M.2 2280 SSD from slot 1, as applicable. 8. Remove the M.2 2230 SSD from slot 2, if applicable. 9. Remove the battery. 10. Remove the assembly-inner frame. 11. Remove the system board. NOTE: The system board can be removed and installed with the heat sink attached in order to simplify the procedure and preserve the thermal bond between the system board and heat sink. . About this task The following images indicate the location of the power button with an optional fingerprint reader and provide a visual representation of the removal procedure. Figure 63. Removing the power button with an optional fingerprint reader Steps 1. Remove the two (M2x2.5) screws that secure the power button to the palm-rest assembly. 2. Lift the power button off the palm-rest assembly. Installing the power button with an optional fingerprint reader CAUTION: The information in this installation section is intended for authorized service technicians only. Prerequisites If you are replacing a component, remove the existing component before performing the installation process. Removing and installing Field Replaceable Units (FRUs) 101

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3.
Remove the
base cover
.
4.
Remove the
4G WWAN card
or
5G WWAN card
, as applicable.
5.
Remove the
wireless card
.
6.
Remove the
memory modules
.
7.
Remove the
M.2 2230
or
M.2 2280
SSD from slot 1, as applicable.
8.
Remove the
M.2 2230
SSD from slot 2, if applicable.
9.
Remove the
battery
.
10.
Remove the
assembly-inner frame
.
11.
Remove the
system board
.
NOTE:
The system board can be removed and installed with the heat sink attached in order to simplify the procedure
and preserve the thermal bond between the system board and heat sink.
.
About this task
The following images indicate the location of the power button with an optional fingerprint reader and provide a visual
representation of the removal procedure.
Figure 63. Removing the power button with an optional fingerprint reader
Steps
1.
Remove the two (M2x2.5) screws that secure the power button to the palm-rest assembly.
2.
Lift the power button off the palm-rest assembly.
Installing the power button with an optional fingerprint reader
CAUTION:
The information in this installation section is intended for authorized service technicians only.
Prerequisites
If you are replacing a component, remove the existing component before performing the installation process.
Removing and installing Field Replaceable Units (FRUs)
101