Service Manual
Table Of Contents
- Latitude 7420 Service Manual
- Working on your computer
- Removing and installing components
- Recommended tools
- Screw List
- Major components of your system
- micro-SD card
- SIM card tray
- Base cover
- Solid-state drive
- WWAN card
- Battery
- Heatsink assembly
- Palmrest antenna module
- Display assembly
- Audio board
- Speakers
- SmartCard reader
- System board
- I/O board
- Power button with fingerprint reader
- Keyboard
- Palmrest assembly
- Software
- System setup
- Troubleshooting
- Getting help
Steps
1. Loosen the eight captive screws that secure the base cover to the computer.
2. Use a plastic scribe to pry open the base cover, starting from the U-shaped recesses near the hinges at the top edge of the
base cover.
CAUTION:
Do not slide the scribe through the edge of the top side of the base cover as it damages the
latches inside the base cover.
3. Pry open the left and right sides of the base cover.
4. Pry open the bottom side of the base cover.
5. Hold the left and right sides of the base cover and remove it from the computer.
6. Disconnect the battery cable.
Installing the base cover
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 base cover and provides a visual representation of the installation procedure.
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Removing and installing components