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
Removing and installing components
NOTE: The images in this document may differ from your computer depending on the configuration you ordered.
Topics:
• 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
Recommended tools
The procedures in this document require the following tools:
● Phillips #0 screwdriver
● Plastic scribe: Recommended for field technicians.
Screw List
The following table shows the screw list and the image of the screws.
Table 1. Screw list
Component Screw type Quantity Image
Base cover Captive screws 8
2
Removing and installing components 11