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. Using a plastic scribe, pry and remove the WWAN card shield covering the WWAN card.
NOTE: Pry open the WWAN card shield from the recess on the top left corner.
2. Loosen the single (M2x2.5) screw and remove the WWAN-card bracket.
3. Disconnect the antenna cables from the connectors on the WWAN card.
4. Slide and remove the WWAN card out from the M.2 slot on the system board.
Removing and installing components
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