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Backlight not working - screen seems fine.

Screen will not light up but is working.

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  • rob_b_68 Aug 31, 2008

    Same here. My TyTN (Mk 1 - Hermes) is working fine except I can't get the backlight to come on - can anyone help, please > Thanks.

  • xxmrxsilentx Sep 30, 2008

    I also have a tmobile htc dash my backlight aint working
    but my keypad light is working. I have to use a flash light
    in order to use the phone. How can i fix my backlight>???


  • Anonymous Nov 10, 2008

    screen is working but backlight is not working (i try settings)

  • mike_e_mouse Dec 08, 2008

    My PEG-N760C has been in box for awhile, I got it out today to start using again after several months. Screen light was dim, but then after a few minutes, looks like a light went out, and now there is no lit screen. Unit is operating normally, just with no screen light. Bummer.

  • kittykatsue Dec 30, 2008

    ugh alright ive had my sony cyber shot DSC-T10 7.2 mega pixels camera for about 3 years now and well it works fine except for one annoying issue. The backlight is just so dark like ive clicked on settings to see if its off and its on ? how can i get this fixed? will it be expensive? HELP!!!

  • SolCat May 26, 2009

    My backlight won't work but I know why - I don't have the software I need to run it. The software should be in a basic pack, the one it came with, but I don't have the original CD and Palm no longer services the device. Does anyone out there have it?

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2 Answers

I just got my blackberry rim and mine is doing that SAME thing and its really bothering meee!!!


PLEASE HELP!!!

Posted on Oct 05, 2008

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Dis problem usually comes 4 all da htc s710 models....better throw it off ,m also suffering 4rm it,,go 4 software reset or try out wid new battery..

Posted on Oct 29, 2008

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Posted on Jan 02, 2017

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After changing the converter on satellite M305D-S4830 the backlight still very dim


i'm sure you ment inverter..if its working on external screen? it would seem. that you still need it replaced have u checked the ribbon cables?

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My samsung LE40R74BD set works fine for about 10 mins then screen goes blank (black) . It would appear there is no back lighting. I have visually checked the psu for blown capacitors but all seem to be...


This does not seem to be a power supply issue but rather an issue with the backlight inverter board. When the screen goes black, take a flash light and focus it on the screen from a close distance and several angles. See if you notice a very faint image. Try changing the channels to make it more noticeable. Try it and let me know

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Lg mod 26lg30-ua picture is too dark and brightness adjustmen does not help


I suspect that you have a backlight issue. The backlight is not getting sufficient voltage usually due to a malfunction of the 12V line on the power supply board of the tv or a faulty backlight inverter board. This issue cannot be narrowed down any further without testing it. So if you are handy at fixing electronics stuff and know how to use a multimeter then let me know and I will guide you.

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VERY Dim screen after a drop


Have you tested it with an external monitor?

I would say you either have a damaged inverter board or screen baclight lamp. Usually the inverter board fails in one of the following ways:

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.

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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.

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2 Answers

Screen is dark or dead on my 17" Macbook Pro


This could be a backlight issue, a board issue or an inverter issue. Look at the screen closely, if there is a faint image it's either a backlight issue or inverter issue. To weed out between the two you can just order on inverter, they're 20 bucks on ebay, if that doesn't work, replace the backlight. Backlight repairs are somewhat difficult. As much as I would like to be able to tell you a quickfix that will solve backlight the problem, you'll most likely have to google for guides that show you exactly how to replace the backlight or bring it in for repairs.I work for Mac Repair NYC and i have to fix this problem a lot.

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Palm Treo 680 Screen Backlight went out


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Beoken backlight


u kant
u will have to get another screen 4 ur psp

Nov 18, 2008 | Sony ACY-BR81/OB

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Screen is dark


It would seem that your backlight is not turning on.
First check to see if the switch that detects that the lid closed is working. I am not sure where it is on this model, but all notebooks have one. If it gets stuck, the backlight stays off.

If it is not the switch, it may be the flourescent backlight
tubes or the inverter, It's not an easy fix, but you can check back here.

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