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
Steps
1. Align and place the battery cable on the battery.
2. Route the battery cable through the routing guides on the battery.
3. Connect the battery cable to the connector on the battery.
Next steps
1. Install the battery.
2. Install the base cover.
3. Install the microSD card.
4. Install the SIM card.
5. Follow the procedure in After working inside your computer.
Assembly inner frame
Removing the assembly inner frame
Prerequisites
1. Follow the procedure in Before working inside your computer.
2. Enter service mode.
3. Remove the SIM card.
4. Remove the microSD card.
5. Remove the solid-state drive.
6. Remove the base cover.
7. Remove the battery.
8. Remove the WLAN card.
9. Remove the WWAN card.
About this task
The following image indicates the location of the assembly inner frame and provides a visual representation of the removal
procedure.
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Removing and installing components