Dell Latitude 5550 Owners Manual - Page 82

Installing the touchpad, About this task, Steps

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5. Remove the 4G WWAN card or 5G WWAN card, as applicable. 6. Remove the wireless card. 7. Remove the assembly-inner frame. About this task The following images indicate the location of the touchpad and provide a visual representation of the removal procedure. Figure 41. Removing the touchpad Steps 1. Open the latch and disconnect the touchpad cable from the touchpad cable connector (TPAD1) on the system board. 2. Open the latch and disconnect the keyboard cable from the connector on the touchpad. 3. Peel the keyboard cable from the touchpad. 4. Open the latch and disconnect the keyboard-backlight cable from the connector on the touchpad. 5. Remove the five screws (M2x2.5) that secure the touchpad to the palm-rest assembly. 6. Lift up the flap below the touchpad cable and remove the screw (M2x2.5) that secures the touchpad to the palm-rest assembly. 7. Lift the touchpad off the palm-rest assembly. Installing the touchpad CAUTION: The information in this section is intended for authorized service technicians only. 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 touchpad and provide a visual representation of the installation procedure. 82 Removing and installing Field Replaceable Units (FRUs)

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5.
Remove the
4G WWAN card
or
5G WWAN card
, as applicable.
6.
Remove the
wireless card
.
7.
Remove the
assembly-inner frame
.
About this task
The following images indicate the location of the touchpad and provide a visual representation of the removal procedure.
Figure 41. Removing the touchpad
Steps
1.
Open the latch and disconnect the touchpad cable from the touchpad cable connector (TPAD1) on the system board.
2.
Open the latch and disconnect the keyboard cable from the connector on the touchpad.
3.
Peel the keyboard cable from the touchpad.
4.
Open the latch and disconnect the keyboard-backlight cable from the connector on the touchpad.
5.
Remove the five screws (M2x2.5) that secure the touchpad to the palm-rest assembly.
6.
Lift up the flap below the touchpad cable and remove the screw (M2x2.5) that secures the touchpad to the palm-rest
assembly.
7.
Lift the touchpad off the palm-rest assembly.
Installing the touchpad
CAUTION:
The information in this section is intended for authorized service technicians only.
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 touchpad and provide a visual representation of the installation procedure.
82
Removing and installing Field Replaceable Units (FRUs)