- Notes, cautions, and warnings
- 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
- Speaker board
- Display assembly
- Speakers
- Tweeters
- Tweeters and palmrest antenna assembly
- Smart card reader
- Audio board
- System board
- I/O board
- Power button with fingerprint reader
- Keyboard
- Palmrest assembly
- Software
- BIOS setup
- Troubleshooting
- Handling swollen Lithium-ion batteries
- Dell SupportAssist Pre-boot System Performance Check diagnostics
- Built-in self-test (BIST)
- System-diagnostic lights
- Recovering the operating system
- Real-Time Clock (RTC Reset)
- Backup media and recovery options
- WiFi power cycle
- Drain residual flea power (perform hard reset)
- Getting help and contacting Dell
Latitude 7520 Service Manual
Installing the I/O board
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 I/O board and provides a visual representation of the installation procedure.
Steps
- Replace the I/O board into its slot in the computer.
- Secure the I/O board to the computer using the single (M2x2.5) screw and two (M2x4) screws.
Next steps
- Install the system board.
- Install the heatsink assembly.
- Install the solid-state drive.
- Install the base cover.
- Install the SIM card.
- Install the microSD card.
- NOTE Plug-in AC before powering up your computer.Follow the procedure in after working inside your computer.
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