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Possible backlights not working

I can barely see my screen display. I am told the backlights are not working. do I have to replace the screen or is it a simple fuse blown?

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  • 3 more comments 
  • mechelle9755 Oct 13, 2008

    the screen is so dark but if you look real hard you can barely see what is being displayed

  • mechelle9755 Oct 13, 2008

    screen is black if you look real hard you can see what is being dispalyed

  • adnan78 Nov 22, 2008

    my laptop is compaq nx6110, and i have lcd backlight problem... can you help me please, i'm hear in Jeddah, KSA, is there any service center available here? please reply on my e-mail add @ adnan.lisondra@yahoo.com.ph...



    thanks a lot...

  • Anonymous Dec 15, 2008

    Same issue. CCFLs in the LCD display are non-functional.

  • Anonymous Jan 02, 2009

    we have an acer aspire 3610 had broken lcd screen but we rplaced with an acer 5100 screen we powered up and screen would not come on when we hook in an external monitor it seems to work fine but will not work the laptop screen

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  • 300 Answers

Unfortunately the cause is normally the screen itself or the inverter board

Posted on May 18, 2008

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1 Answer

Acer aspire one screen barely displayed


There are two causes, the inverter board, " just under the LCD screen" more likely, or the backlight behind the display, "less likely"

Apr 18, 2012 | Acer Aspire One PC Notebook

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Backlight on display went dim


If the backlight has failed or a cable is loose you can replace or repair the backlight of the monitor.

replacement parts are available at

www.pchub.com
www.acerparts.com

I suppose the keycombination FN and arrow up or down has no effect?

Aug 03, 2008 | Acer Aspire 5315 Notebook

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My Sony VAIO Laptop screen is black. It worked fine, no issues2 days ago. Went to turn it on last night and it is black.. When light hits at a certain angle, I can see the desktop, I can hear the startup...


A faint and barely visible image on the screen indicates that the backlight(s) that illuminates the display isn't powering on. A device called an inverter board takes DC power from the laptop motherboard and converts it to AC power to power the screen backlight.
Before attempting anything below, be sure and remove the laptop battery and unplug the laptop
You need to take the screen apart and check to make sure that no cables are loose that are connected to the inverter board. If everything is secure, the next thing I would do is try to test the inverter board by hooking up an LCD from another laptop to the inverter and turning the laptop on to see if it lights up. If the other screen does light up, then the inverter board is likely good and your backlight needs to be replaced. Backlight replacement, unfortunately, can be very tricky for even an experienced technician, and many will opt to just replace the entire screen.
If you can't test the inverter board, then it might be worth it to order one and see if installing it fixes the problem.
Youtube is a great place to check for instructional videos on laptop repair, such as this one:
http://www.youtube.com/watch?v=jjXLR5yY7X4
Good luck!

Sep 21, 2011 | Sony PC Laptops

3 Answers

The screen is dark , you can barely see the display, when you but it up you can clearly see the maufacturer's emblem but then it goes black


Backlight on the LCD is bad. Try using a flashlight on the screen while system is on, if you can see it, need to replace it. Hope this helps.

Aug 12, 2010 | Toshiba Satellite A135-S2386 Notebook...

1 Answer

I swiched off my laptop inspiron 1000 at the off switch. when I put it back on the back light did not work


how do you know it is the backlight? Usually people think that's it but it is the inverter.
f the backlight of your laptop stopped working and the image on the screen is so dim that you can barely see it under bright light, most likely you have a failed inverter board. There is a good chance to fix the problem if you replace the inverter board. If you replace the inverter board but the image is still dim, most likely there is a problem with the backlight lamp inside the LCD screen. If that's the case, try to replace the LCD screen. Note: it's much easier to disassemble the laptop display panel when the display panel is separated from the laptop.

I can definitely fix either way if you are out of warranty from dell.
Good luck! EJ Kudelka ej@outlet3g.com 516-860-2969

Feb 06, 2010 | Dell Inspiron 1000 Notebook

2 Answers

Screen dim HP pavilion dv1000


The lid actuator switch may not be working correctly. It's a small switch above the keyboard and led's on either the right or left side. Try pressing it 2 or 3 times to see if the display starts working correctly again. If so, it will need to be replaced.

If that doesn't work, you can also turn it on with the ac adapter plugged in. After it boots, press the power button and hold it in until it shuts off and then turn it on again and see if the display has returned to normal.

If neither of these options work, your laptop may need to have the backlight replaced.

Aug 13, 2009 | HP Pavilion dv1000 Notebook

1 Answer

No light from my replaced display


If you see a very dim image or black screen or flicking image on the LCD screen it means you have a backlight problem.

Connect an external monitor to your laptop and power it up, if you see the normal Windows images then the video card and laptop is OK and the problem is definitely the backlight.

Dim image and/or dark display on the laptop's LCD screen indicates a faulty LCD backlight and it could be the inverter that supplies high voltage to the CCFL lamp or it is the CCLF lamp is nearly burnt out or burnt out, most likely this is the case.
The inverter can be replaced easily but the CCLF lamp is more time consuming and requires soldering skills.
Check out www.lcdparts.net for parts, repair service and DIY info.

Mar 28, 2009 | HP Pavilion dv5000t Notebook

2 Answers

Possible backlights not working


Hello friend,

Try this tech tip: try to connect external monitor to laptop and press FN key and F4 or F5, and if the monitor does not display motherboard need to be replace, if it does then lcd screen need to be replace

Dec 13, 2008 | Toshiba Satellite A55-S1063 Notebook

2 Answers

Toshiba blank screen


Your LCD backlight is not working. You will either need to get it fixed or have the LCD assembly replaced altogether. If your computer is under warranty, Toshiba will perform this repair. Otherwise, take it to a local service shop.

Jun 05, 2008 | Toshiba Satellite A135-S2276 Notebook

1 Answer

Startup problems


Hi,

Based on your post/description "barely make out the screen" you have a backlight problem which can either be the CCFLamp or the inverter that powers it. The problem may be component failure, heat related or cold solder, loose connection.

Since this would involve opening the screen display panel, electronic circuitry diagnosis and possibly component replacement, your best bet might be to seek the services of a qualified repair person. To give you an idea of the possible cost, pls refer to this site.

Should you venture into giving it a go for yourself, this site might be able to give you an idea how it is done. This link is a possible source of replacement components.

Hope this be of some help/idea. Post back how things turn up or should you need additional information.

Good luck and kind regards.

Nov 04, 2007 | Dell Inspiron 6000 Notebook

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