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
Next steps
1. Install the assembly inner frame.
2. Install the battery.
3. Install the solid-state drive.
4. Install the WWAN card.
5. Install the WLAN card.
6. Install the base cover.
7. Install the microSD card.
8. Install the SIM card.
9. Follow the procedure in After working inside your computer.
Keyboard assembly
Removing the keyboard assembly
Prerequisites
1. Follow the procedure in Before working inside your computer.
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.
About this task
The following images indicate the location of the keyboard assembly and provide a visual representation of the removal
procedure.
Removing and installing components
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