Service Manual
Table Of Contents
- Latitude 5420 Service Manual
- Contents
- Working inside your computer
- Major components of your computer
- Removing and installing components
- Recommended tools
- Screw list
- Disassembly and reassembly
- Subscriber Identity Module (SIM) card
- Micro Secure Digital (SD) Card
- Base cover
- WLAN card
- WWAN card
- Solid-state drive
- Memory modules
- Battery
- Battery cable
- Assembly inner frame
- LED board
- Heat sink
- Speakers
- System board
- Power-button board
- Smart card reader
- Keyboard assembly
- Keyboard bracket
- Display assembly
- Display bezel
- Display panel
- Camera/microphone module
- eDP/display cable
- Sensor board
- Display hinges
- Display back cover
- Dummy SIM-card slot filler
- Palm-rest assembly
- Software
- BIOS setup
- Troubleshooting
- Getting help and contacting Dell
2. Remove the SIM card.
3. Remove the microSD card.
4. Remove the base cover.
5. Remove the WLAN card.
6. Remove the WWAN card.
7. Remove the memory module.
8. Remove the solid-state drive.
9. Remove the battery.
10. Remove the assembly inner frame.
11. Remove the system board.
12. Remove the keyboard assembly.
About this task
The following images indicate the location of the keyboard bracket and provide a visual representation of the removal procedure.
Steps
1. Remove the six screws (M2x2) that secure the keyboard to the keyboard bracket.
2. Remove the keyboard from the keyboard bracket.
Installing the keyboard bracket
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 keyboard bracket and provides a visual representation of the installation
procedure.
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Removing and installing components