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My laptop screen is dark. I plug the laptop in a power strip in the family room and the screen works fine. I put it back in the other room, plug it into the power strip and the screen does not come on. The computer is on, but the screen will not stay on.

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You have created a power drop with too much load on that circuit or you have a bad receptacle. Try plugging it in directly to the wall outlet in the other room. Let me know if this is helpful, we can go further if necessary.

Posted on Nov 08, 2010

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Dell Inspiron 1525 laptop screen goes dark


Hey Lea,
Try the steps below to see if they will resolve this issue that you are having with your computer. If this does resolve the issue you can email me. My email address is listed below in my sigfile.

1) UNPLUG THE LAPTOP
2) REMOVE THE BATTERY
3) HOLD DOWN THE POWER BUTTON FOR ABOUT 30 SECONDS TO 2 MINUTES
4) THEN PUT THE BATTERY BACK IN
5) START IT UP..

Thank You,
Dell-Jesse L
Dell Social Media and Communities
email jesse_leonard@dell.com

Apr 13, 2013 | Dell Inspiron 1525 Laptop

1 Answer

When I turn on the power of the laptop starts, the LEDs work properly but noting appears on the screen. All the LED light blink, charging light also show. But the screen is totally blank.


I cannot promise an easy fix for this and you will need to work through the following to eliminate possible causes.

1.) Try the laptop on another monitor, if it works on this, you can eliminate the graphics chip, which is the part that usually causes problems with blank screens. If the external monitor does not work with the laptop, you will need to investigate the problem by stripping the laptop.

2.) If it does work on an external screen, the inverter, the backlight or the VGA cable are at fault. If you can see a very faint image on screen in a darkened room, the possibility is that the backlight has failed, if there is no image, the inverter has failed. Of the two, the inverter is the cheapest to replace at about £10.00, whilst the screen will cost about £40-70 to replace.

(The vga cable may have also come loose, unlikely, but stripping the laptop by removing the screen assembly will show this. You would also need to do this to replace the inverter and / or screen.)

3.) Before stripping the laptop, try these steps:
  • Check the Adapter is putting out the correct voltage by connecting a multimeter set to 20volts DC to the DJ jack that plugs into the laptop. The red probe should connect to the inner of the jack and the black probe to the outer. If you get a lower reading, suspect the adapter is at fault.
  • Check the port that the adapter plugs into, it should not be loose or wobbly, if it is slack, it will require replacing.
  • Remove the battery and ac adapter, press the power button on and hold it for 30 seconds, this clears the cmos. Plug the ac adapter back in and try it, if it works ok, reinsert the battery. If it fail again, suspect the battery.
After taking all these steps, and getting no resolution, you should now look into the possibility that the motherboard is damaged, specifically the graphics chip. These tend to fail if the laptop has overheated. They cannot be easily checked, however, stripping the laptop will at least show you if there was dust build up in the CPU fan area and cooling radiator. If this was heavily clogged, it is almost certain that the chip has failed

The link below may help you should you choose to dismantle your laptop
http://laptoprepair.ca/news/11780.html

Jul 26, 2011 | Sony VAIO VGN-B100B Notebook

2 Answers

Screen is not lighting while laptop is running.


Hook a spare monitor to the video output on the back of the laptop, if okay it means the video card is working fine. The problem is a bad inverter board, "located under the LCD display" or the back light is defective behind the screen, "usually means a screen replacement"

Apr 06, 2011 | Sony Computers & Internet

2 Answers

I have a dell inspiron 1525 and I am having screen problems. when computer is plugged in it works fine but when I un plug it and try and run it off the battery the screen goes so dark I have to have room...


This can be caused by a number of reasons more than likely though it's a hardware issue.

The first thing I would try to resolve this issue is to update the bios to the latest firmware.

You can download it here.

Make sure all other programs are closed before you run the update. Also make sure you don't do ANYTHING else or move the computer during the update

Let me know if that resolves your issue otherwise it's plan B ;)

Oct 28, 2010 | Dell Inspiron 1525 Notebook

1 Answer

Dell ADAMO 13 w/Vista 64 Random power failure...goes dead in 1 second. Battery fully charged. Happened with external power and when on battery. I have latest BIOS v6.0. I ran pre-boot diagnostics...


If the power totally fails (i.e. power is cut off, LEDs turn off, fans stop, ... etc), then this more likely to be because of a short circuit developing in a failing semiconductor component, or a power supply problem.
However, if the laptop is still running & only the display on its LCD is cut off but the laptop itself stays powered on, then your laptop might be experiencing a failing screen inverter board, a failing screen backlight lamp, or a failing LCD screen cable.

TYPICAL INVERTER FAILURE SYMPTOMS

1. When you turn on the laptop, the screen lights up for a short period of time and then goes dark. You still can see an image but it is very dark, almost invisible and definitely not usable. When you restart the laptop, the screen lights up and then goes dark again. The laptop works fine with an external monitor.
2. Your laptop turns on but the screen remains dark all the time. You still can see a very dim image outline. The laptop works fine with an external monitor.
3. The laptop screen works fine for hours or even days, but sometimes it goes very dark as it mentioned above. When you restart the laptop, the screen works fine again.

Inverter failure symptoms are very similar to backlight lamp failure symptoms and in most cases you cannot tell which one is causing the problem until you replace either the inverter board or the backlight lamp. From my personal experience, inverter boards fail more often than backlight lamps. If you have to guess, replace the inverter first.

Feb 07, 2010 | Office Equipment & Supplies

1 Answer

Laptop is plugged in. Notice on screen that battery was low, even with it plugged in, and now no power lights on. Adapter light is still on indicating outside power supply on. Removed and reinserted...


The batteries do go bad overtime and will no longer hold a charge but the laptop should still work as long as the power cord is connected. If it still does not work with the power cord connected then it is most likely the power cord, these can go bad, but make sure that the power is securely connected and that if it is plugged into a power strip that it has not been turned off, try another outlet just to rule it out as well.

Jan 22, 2010 | Dell Inspiron B130 Notebook

1 Answer

Hello my compaq laptop is just really dark


If the screen is just dark but you can see images still, it might jsut be the backlight i suggest a power reset (unplug and remove battery, hold power button down for 1 minute no less, replace the plug and battery) after doing so it should work, if not call ompaq its a hardware issue, now in the event its completely black try the same thing, either way it sounds liek hardware.

Jan 23, 2009 | HP Compaq Presario V2000 Notebook

1 Answer

Gateway laptop 3522gz display went "dark" after 2 years.


It sounds like LCD backlight problem. Bring your laptop to a repair shop.

Dec 04, 2008 | Gateway 3522GZ Notebook

1 Answer

Gateway 3522GZ display


Some searching on forums convinced me the inverter had failed. Picked one up for $65, removed the frame around the screen, removed the mounting screw for the inverter, and unplugged both ends of the old and plugged in the new. Put it back togeher and fired it up, bright again. Key here was that a remote monitor still worked which meant video card was OK. The lamp could have been bad, but apparently the life of lamps is pretty decent.

Aug 31, 2008 | Gateway 3522GZ Notebook

3 Answers

Screen


remove the battery try pressing the FN key and F4, F5, F7 (which ever your lap uses to switch between external lcd and internal screen)

Aug 31, 2007 | Acer Aspire 5500 5570-2609 Laptop

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