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. Unroute the antenna cables from the routing guides on the assembly inner frame.
2. Disconnect the LED-board cable from the connector on the system board.
3. Disconnect the speaker cable from the connector on the system board and unroute the cable from the routing guides on the
assembly inner frame.
4. Remove the three screws (M2x5) that secures the assembly inner frame to the system board and the palm-rest assembly.
5. Remove the seven screws (M2x3) that secure the assembly inner frame to the system board and the palm-rest assembly .
6. Lift the assembly inner frame off the system board and the palm-rest assembly.
Removing and installing components
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