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Backlight not working....very dark can see it with a flash light on the screen not sure what to do

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Your monitor needs servicing

Posted on Jun 30, 2008

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Posted on Jan 02, 2017

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Samsung series 5. 5500 LED TV BLACK SCREEN


perhaps the backlight invertor driver circuit.

Samsung TV Repair Part Number Identification Backlight Inverters LED...
See where the wires from the long LED strips on the both sides of the screen lead you to.

does your model have separate board for backlight ? or is it integrated with TCON ?

Aug 17, 2016 | Samsung 32" Class 1080p 60Hz LED HDTV -...

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How to fix broken TFT background lighting?


I tougth it is better if you replace your TFT in one package. Too much time to be cost if you try to fix the backlight. But you can try this video http://www.youtube.com/watch?v=w4v20PyomuU after you sure that your backlight is the problem by installing another undefected TFT

Aug 15, 2014 | Samsung R65 Notebook

1 Answer

Will not retain screen image. Flashes the content when you push the on/off button and is clearly projecting data, but just in flashes.


It appears you may have a bad backlight. If you can see the picture content with a strong light shining at an angle to the screen while it is dark, then it is definitely the backlight. Most sets shut down shortly after getting a failure signal from the backlight inverter although you do not mention that happening.

The backlight uses two or more Cold Cathode Fluorescent Lamp (CCFL) tubes, and they'll have the same flickering as a failing standard fluorescent tube. If the light has a pinkish cast to it, this is a common sign that one or both of the tubes is bad. You may see the flashing on the top or the bottom and the other half of the screen will be dark; this means one tube is dead and the other is dying.

May 24, 2011 | Sony SDM-HS73P 17" LCD Monitor

1 Answer

My phone seems to be working, but the LCD panel is dark. I really don't understand why the light went out.


Cells phones have a LCD screen the had a back light, When the back light goes bad 9 times out of ten you can take a flash light and shine it on the display and can see the image, if so you know you got a bad backlight

issue with these phnes as well is you gotta replace the lcd as the backlight comes with them most of the time.

I sure wish ya good luck with your phone and do hope this information did help.

Before you leave tho please do rate and leave some feedback on how well you where taken care of here at Fixya.com!

Aug 17, 2010 | Samsung Cell Phones

1 Answer

Dark screen ,fn does not work


I would suggest connecting the laptop to an external monitor, just to make sure that it is all running correctly.

If you can see a very dim image on the screen then the backlight is out. This can be a light problem or the inverter that powers the backlight could be bad. The inverter is not real dificult to change and also is not very expensive. If it is the backlight tho, it is easier to just change out the entire screen.

Hope this helps

May 02, 2009 | Dell Inspiron 6000 Notebook

1 Answer

Picture went out


Try this to get more information that will help diagnose the extent of the problem:

get a powerfull flash light
turn the tv on in the dark and point the flashlight right at the face of the screen and look for video..

make sure you have an active input or good channel selected..

if you see video where the flash lights then your cold cathode flourescant backlight is not working and this repairable at a reasonable price

Apr 09, 2009 | Panasonic Viera TH-42PZ85U 42 in. Plasma...

1 Answer

Monitor black screen dark picture when power on then black. power button flashing


I'm having the same problem, my power button just flashes now, and it seems like the screen tries to turn on over and over again.

I'm pretty sure its the backlight for the LCD.

If your very handy, go to inventgeek.com and type in LCD backlight fix.

Dec 16, 2008 | Computers & Internet

1 Answer

Dark screen


if the picture is REALLY dark, like you can just barely see it in a lit room, then the backlight might not be lit. LCD TVshave backlight that shines through the LCD screen which allows you to see the picture.

If it's not the backlight then it would be the brightness/contrast settings that need to be adjusted. If the picture used to be normal and all of a sudden went dark, verify the backlight. Normally you can look through the slots on the top of the set and determine if the backlight is on. If you can see a bright light through any of the slots, the backlight is probably OK... go after the brightness/contrast settings.

Mar 25, 2008 | Vizio L37 Television

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