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Patrick connolly Posted on Jan 05, 2018

46 inch samsung tv,with backlight issue, all figures wearing bright sharkskin suits

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Moss'es Chauke

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  • Contributor 7 Answers
  • Posted on Jan 07, 2018
Moss'es Chauke
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5 Related Answers

Anonymous

  • 616 Answers
  • Posted on Aug 01, 2009

SOURCE: 46 inches LCD Samsung TV had vertical solid black

problem with the driver board, 50/50 chance you will also need the upper and lower buffer boards. Julio

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Anonymous

  • 7 Answers
  • Posted on Sep 25, 2009

SOURCE: 46 inch Samsung TV that just clicks but wont turn on

I just fixed this very same problem. It is the capacitors are the problem. However, I think that if you have some minimal skills with soldering, you can fix this yourself. You just need to take out the system board, then the power supply parts are on the top right. The bad capacitor(s) will be bulging at the top and possibly have some brown stuff coming out. The ones that go bad are 1000microfarad, 10V, however you can replace them with higher voltage. I got 35V caps from radio shack for 1.59 each. You just need to solder out the bad ones and then put the new ones in and solder. Remember that the negative end goes on the side with the bold black part of the circle on the system board. Then just cut off the extra ends of the capacitors. If you are capable of doing this yourself, you will spend at most 6 dollars instead of however much a technician costs.

Anonymous

  • 69 Answers
  • Posted on Feb 15, 2010

SOURCE: white dots all over my 46 inch samsung projection

this a typical dlp ic failure. this device has 1 million moving mirrors and some of them are stuck. the ic will need to be replaced it will keep getting worse

RyanFanMan

Ryan Nguyen

  • 342 Answers
  • Posted on Mar 10, 2011

SOURCE: Samsung 46 " lcd backlight dims and brightens by

there is a light sensor that is for the backlight thatg if you refer to your manual you can find out how to turn it off

Slinteriors

Sonny Berry

  • 8617 Answers
  • Posted on Feb 08, 2012

SOURCE: samsung 46 inch lcd no picture only sound

Could be backlight or the Invertor. While the sound is operating shine a flashlight into the screen and see if you can see the picture or not then let me know and I will assist you. But I will also need the model number of the set.

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Tv back light problem

If the backlight is glowing then there is no problem with backlight. Check the high voltage circuit first where the 120 volts AC enters the TV. Then first the transformer, check the DC voltage on the capacitor - should be at least 390 volts. If not, replace it. The one is 100 uf rated450 volts. When I check my high voltage it was only 380 volts. So, I used two capacitors in parallel 150 uf and 220 uf (both rated at 400 volts, and that fixed the problem.
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Samsung TV No Backlight Issue

Hi Cool,
Please disconnect the bulbs number one and solder a 4200pf/2kv capacitor in its place. See if the set works. Do the same for all the bulbs till you find the defective one. With the defective bulb replaced with 4200pf capacitor set will not power off. If this works and the light on the screen is sufficient, you can leave the capacitor soldered there. I hope it helps.
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Samsung LCD TV 46 inch model LN46A550 has bright pink glow where it should be light (sky, lamp, etc)

My guess would be that you have a CCFL lamp that is failing. They will give off a pinkish tint when they are about to fail. But I would encourage you to get a professional diagnoses.
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Samsung 46 inch lcd no picture only sound

Could be backlight or the Invertor. While the sound is operating shine a flashlight into the screen and see if you can see the picture or not then let me know and I will assist you. But I will also need the model number of the set.
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My dynex has sound no picture 46 inch

Hi, unfortunately it sound like your television has a problem with the backlight system, it is either the backlighting bulbs or the power supply that runs them. It may be possible to reset the televisions brightness setting by keeping it unplugged for a day. Having lower brightness setting may " let " tv resume operation. other wise it'll need repairing. I hope this was of some help, Good luck, Prodzilla
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Samsung LCD 46 inch half of the screen is darker than the other half.

Hi, while fixing another persons lcd tv i used lower rated power supply to try to fire up the tv ( picture-no sound) the bulbs ( actually cold cathode fluorescent ) lit up but only halfway. So sounds like the power supply for your backlight has gotten weak. You may try a workaround I've used on personal equipment, try turning down brightness on tv-this may,if your lucky, even out the brightness. hope this helped. Prodzilla
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No picture on my new 46 inch samsung LCD

Hi...there,
It's seems your backlight lamp is burnt out... if you are still under warranty... call the mfg. up and get a replacement lamp.
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