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
Installing the power-button board
About this task
The following images indicate the location of the power-button board and provide a visual representation of the installation
procedure.
Steps
1. Align and place the power-button board on the palm-rest assembly.
2. Replace the two screws (M2x2.5) that secure the power-button board to the palm-rest assembly.
Next steps
1. Install the system board.
2. Install the assembly inner frame.
3. Install the battery.
4. Install the solid-state drive.
5. Install the memory module.
6. Install the WWAN card.
7. Install the WLAN card.
8. Install the base cover.
9. Install the microSD card.
10. Install the SIM card.
11. Follow the procedure in After working inside your computer.
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Removing and installing components