Owners Manual
Table Of Contents
- Latitude 5520 Service Manual
- Contents
- Working inside your computer
- Major components of your computer
- Removing and installing components
- Recommended tools
- Screw list
- Subscriber Identity Module (SIM) card
- Micro Secure Digital (SD) Card
- Base cover
- WLAN card
- WWAN card
- Solid-state drive
- Memory modules
- Battery
- Battery cable
- Assembly inner frame
- LED board
- System fan
- Heat sink
- Removing the heat sink (for computers shipped with integrated graphics card)
- Installing the heat sink (for computers shipped with integrated graphics card)
- Removing the heat sink (for computers shipped with discrete graphics card)
- Installing the heat sink (for computers shipped with discrete graphics card)
- Speakers
- System board
- Power-button board
- Smart card reader
- Keyboard assembly
- Keyboard bracket
- Display assembly
- Display bezel
- Display panel
- Camera/microphone module
- eDP/display cable
- Sensor board
- Display hinges
- Display back cover
- Dummy SIM-card slot filler
- Palm-rest assembly
- Software
- BIOS setup
- Troubleshooting
- Getting help and contacting Dell
LED board
Removing the LED board
Prerequisites
1. Follow the procedure in Before working inside your computer.
2. Enter service mode.
3. Remove the SIM card.
4. Remove the microSD card.
5. Remove the base cover.
6. Remove the WLAN card.
7. Remove the WWAN card.
8. Remove the battery.
9. Remove the assembly inner frame.
About this task
The following image indicates the location of the LED board and provides a visual representation of the removal procedure.
Steps
1. Open the latch and disconnect the smartcard reader cable from the connector on the USH-daughter board.
2. Remove the smartcard reader cable away from the USH-daughter board.
3. Disconnect the LED-board cable from the connector on the system board.
4. Remove the single screw (M2x3) that secures the LED board to the palm-rest assembly.
5. Lift the LED board and cable away from the palm-rest assembly.
Removing and installing components
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