XPS L321X laptop black screen

Hello

After a few years, abandoned the L321X screen. It turns out bios black, completely black, and even not to stand, but backlight is turned on. Connected to the external monitor and run the system diagnostics. Everything happened, system, cables, built-in LCD screen, RAM, CPU, graphics card...

Run the auto diagnosis of powering all holding the key d. screen shows of gray, red, green, blue, then turn off and restart.

Unplug and reconnect the video cable and the problem persists. Update bios to bios A08 and load default. Does not. Unplug the cable from the battery and hold the power for > 30 sec, nothing changes.

It seems the system works, works at the LCD, cable works. The only thing I have not tried is removing the CMOS battery, which I have to remove the motherboard first. Can you help me to know what is the problem?

Thank you

Hi YVES31,

Thank you for the update.

I agree with ejn63 as well. I suspect that the motherboard may be defective than the screen itself.

Page 53 of the manual describes how to disconnect / connect the cable of the LCD of the motherboard.

You can contact our team to get a quote for a paid service call - http://dell.to/1vnT6CQ

Let us know if you have any other questions.

Tags: Dell Laptop

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