Dell Latitude 5430 Chromebook Service Manual - Page 56

Installing the palm-rest and keyboard assembly

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13. Remove the fan. 14. Remove the display assembly. 15. Remove the system board. About this task NOTE: The system board can be removed and installed along with the heat sink, when replacing the palm-rest and keyboard assembly. This simplifies the removal and installation procedure and prevents damage to the thermal bond. NOTE: The palm-rest and keyboard assembly cannot be further disassembled once all of the pre-removal parts procedures are completed. If the touchpad frame, touchpad support bracket, touchpad mylar, touchpad module, touchpad FFC, conductive tape or thermal pad are malfunctioning and need to be replaced, replace the entire palm-rest assembly. The following image shows the palm-rest and keyboard assembly after performing the pre-removal parts procedures for any palm-rest and keyboard assembly replacement. Steps After performing the pre-requisites you are left with the palm-rest and keyboard assembly. Installing the palm-rest and keyboard assembly Prerequisites 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 palm-rest and keyboard assembly. NOTE: If the CPU thermal pad on the palm-rest (underneath the system board) gets detached, adhere it back onto the palm-rest. 56 Removing and installing components

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13.
Remove the
fan
.
14.
Remove the
display assembly
.
15.
Remove the
system board
.
About this task
NOTE:
The system board can be removed and installed along with the heat sink, when replacing the palm-rest and
keyboard assembly. This simplifies the removal and installation procedure and prevents damage to the thermal bond.
NOTE:
The palm-rest and keyboard assembly cannot be further disassembled once all of the pre-removal parts procedures
are completed. If the touchpad frame, touchpad support bracket, touchpad mylar, touchpad module, touchpad FFC,
conductive tape or thermal pad are malfunctioning and need to be replaced, replace the entire palm-rest assembly.
The following image shows the palm-rest and keyboard assembly after performing the pre-removal parts procedures for any
palm-rest and keyboard assembly replacement.
Steps
After performing the pre-requisites you are left with the palm-rest and keyboard assembly.
Installing the palm-rest and keyboard assembly
Prerequisites
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 palm-rest and keyboard assembly.
NOTE:
If the CPU thermal pad on the palm-rest (underneath the system board) gets detached, adhere it back onto the
palm-rest.
56
Removing and installing components