How to fix LCD power rail failure in Dell Laptop?
If your Dell Laptop's power and battery-status light blinks amber two times followed by a pause, this indicates an LCD power rail failure. In this case, you should replace the system board.
General| Operating System | Windows 10 Pro |
|---|---|
| Wireless | Intel Wi-Fi 6 AX201, Bluetooth 5.1 |
| Display | 15.6-inch FHD (1920 x 1080) Anti-Glare |
| Memory | Up to 32GB DDR4 |
| Graphics | Intel UHD Graphics |
| Ports | 1 x USB 2.0, 2 x USB 3.1, 1 x HDMI 1.4, 1 x RJ-45, 1 x SD card reader |
| Dimensions | 18.0 mm x 361.4 mm x 247.8 mm |
General safety guidelines to protect the computer and user.
Steps to perform before commencing internal computer work.
Measures to prevent electrostatic discharge damage.
Steps to follow after completing internal computer tasks.
Details on Universal Serial Bus evolution and specifications.
Information about the USB Type-C connector and its capabilities.
Explanation of HDMI 1.4 features and advantages.
Description of power button LED indicators.
Identification of the base cover component.
Identification of the battery component.
Identification of the memory modules component.
Identification of the system board component.
Steps to remove the microSD card from the computer.
Steps to remove the SIM card from the computer.
Steps to remove the base cover of the computer.
Steps to remove the computer's battery.
Steps to remove a memory module from the system.
Steps to remove the Wireless Local Area Network card.
Steps to remove the Wireless Wide Area Network card.
Steps to remove the coin-cell battery.
Steps to remove the DC-in port.
Steps to remove the M.2 solid-state drive.
Steps to remove the hard drive.
Steps to remove the touchpad button board.
Steps to remove the speaker modules.
Steps to remove the fan assembly.
Steps to remove the heatsink assembly.
Steps to remove the system board.
Steps to remove the Input/Output board.
Steps to remove the power button module.
Steps to remove the LCD assembly.
Steps to remove the palmrest assembly.
Overview of the pre-boot system assessment diagnostics.
Procedure to run SupportAssist diagnostics.
Explanation of system status lights and LED codes.
Procedure to resolve internet connectivity issues via power cycling.
Information on how to contact Dell support for assistance.
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