Why when I turn on it not turn screen on but still is turned on
Why when I turn on it not turn the screen but the power button is on as well as the Fein also is on but screen is not on
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@tuluwenebruno first check your screen and make sure it is not the backlight that may have failed. Then you want to connect an external monitor to your computer and see if that works.
The no video issue can be related to a bad backlight inverter circuitry. A simple check for that would be to darken the room and turn the computer on. Then use a flashlight and angle the light at the screen on different areas. If you make out some shadows or see the splash screen or even your desktop, you know it is the backlight that has failed. If you do not see anything, unplug your computer and remove the bottom cover. et and remove the back cover. Visually check the motherboard for any obvious damaged components as well as the display adapter. Post some pictures of what you find. That way we can see what you see. Ajout d'images à une question existante
Use the HP ProBook 4540s Maintenance And Servie Guide to work on your laptop.
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