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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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  • 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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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"

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

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

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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
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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

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Well, first you will have to check your options, if you can read it enough to get in there.  You may have the backlight turned off.  If the backlight is not turned off, then you probably have a bad backlight and will have to take it to your provider to get it fixed.  Replacing a screen/backlight is not something I would attempt to do unless you are certain you know exactly what you are doing as you can render the phone completely useless.  

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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

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If you can't control it with the controls, then most likely the backlight has died. The entire LCD display will need to be replaced as the backlight is integrated into the LCD display.

- Jim
SHARCNET-USA

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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.

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1 Answer

Black Screen


Is the power source good - AC adapter or batteries?

If ok, it sounds like the backlight for the LCD display is going bad. Many LCD displays these days have an integrated backlight that is built into the display so the entire display will need to be replaced.

Let me know if I can be of further assistance to you.

Good Luck,
- Jim

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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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