Service Manual
Table Of Contents
- Latitude 3520 Service Manual
- Working inside your computer
- Removing and installing components
- Recommended tools
- Screw List
- Major components of your system
- MicroSD-card
- SIM card tray
- Base cover
- Battery cable
- Battery
- Memory module
- M.2 solid-state drive thermal plate
- M.2 solid-state drive conversion bracket
- M.2 solid-state drive
- Hard-disk drive
- WLAN card
- WWAN card
- I/O cable
- Display assembly
- System fan
- Heatsink assembly
- Power adapter port
- Coin-cell battery
- USB cable
- Ethernet port
- I/O board
- Power-button board
- System board
- Speakers
- Touchpad
- WWAN I/O board
- Palmrest assembly
- Display bezel
- Display panel
- Camera
- Display cable
- Display back-cover
- Drivers and downloads
- System setup
- Troubleshooting
- Built-in self-test (BIST)
- LCD Built-in Self Test (BIST)
- Dell SupportAssist Pre-boot System Performance Check diagnostics
- Diagnostic LED behavior
- Diagnostic error messages
- System error messages
- Recovering the operating system
- Real-Time Clock (RTC Reset)
- Flashing the BIOS
- Backup media and recovery options
- WiFi power cycle
- Flea power release
- Getting help and contacting Dell
Steps
1. Connect the WWAN cable to the connector on the WWAN I/O board and close the latch.
2. Align and place the WWAN I/O board into its slot on the palmrest assembly.
3. Install the two (M2x3) screws to secure the WWAN I/O board to the palmrest assembly.
Next steps
1. Install the battery cable
2. Install the base cover.
3. Install the SIM card tray for 4G LTE enabled systems.
4. Install the microSD card.
5. Follow the procedure in After working on your computer.
Palmrest assembly
Removing the palmrest assembly
Prerequisites
1. Follow the procedure in before working inside your computer.
2. Remove the microSD-card.
3. Remove the SIM card tray for 4G LTE enabled systems.
4. Remove the base cover.
5. Remove the battery.
6. Remove the memory module.
7. Remove the M.2 SSD.
8. Remove the M.2 SSD thermal plate.
9. Remove the M.2 SSD conversion bracket.
10. Remove the hard-disk drive.
11. Remove the WLAN card.
12. Remove the WWAN card for systems enabled with 4G LTE.
13. Remove the I/O board cable.
Removing and installing components
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