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I have a Samsung LCD TV UN48J520DAFXZA and the picture has suddenly gone very dim.

I can barely see it. I have had the TV for about 6 months. I can get new circuit boards for $60. Do you think this would fix the problem or should I just buy a new TV?

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6 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

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thecritter
  • 29 Answers

SOURCE: Thin Yellow Vertical Line - Samsung LNT4665F LCD TV

Unplug for 30 seconds from it's power source and then try it again. If that doesn't work, call Samsung for further troubleshooting and have your model number and serial number handy. Please be prepared to tell them how long the line is.

Posted on Mar 30, 2008

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  • 718 Answers

SOURCE: how hard it is to replace by yourself main board Samsung LN-T4065

You need to do some more diagnosing of the problem. If you get sound and change channels take a bright flashlight and place it again the screen. Look for an image around the edge of the flashlight.
If you see an image that means the LCD controller board (TCON) is probably good.

The problem is probably one of three causes;
1) Inverter board is bad
2) CCFT (cold cathode fluorescent light) are bad.
3) Power to the inverter board is bad. You can also check the connectors.

Posted on Mar 30, 2009

ginko
  • 19396 Answers

SOURCE: Sony LCD TV has Dark Picture

Hi there,

the problem is not the lamp.

This model has a set of two backlight lamps, and it is practically impossible that both lamps go faulty at the same time.

When the backlight lap in an LCD TV goes off in this way, the faulty part is always the backlight inverter, that is the high voltage board powering the lamp.

In your case you have to get the TV inverter booard replaced.


Posted on May 30, 2009

  • 1 Answer

SOURCE: Power Supply Board for SAMSUNG 40" LCD TV Model LA40R81BX

You'll find some Samsung power supply boards here : http://www.usefulparts.com/index.php?main_page=index&manufacturers_id=11&sort=20a&filter_id=98&alpha_filter_id=0
but you have to open your TV first and find out model number

Posted on May 10, 2010

mislamy15m
  • 2 Answers

SOURCE: Circuit diagram Samsung LE23R88BDX - LCD TV

when I turn off and then Turn on after 10 minutes the TV notwork(by using remote or touch button). I try to disconnect power supply andthen reconnect and waiting a couple of minutes and turn on but no work (nosound and black desktop) .I repeat this procedure many times so some timework and sometimes not work. please help me to solve this problem

Posted on Aug 28, 2011

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it might be inverter board it is not backlight bulb according to my expertise bcoz once it goes off it dont come back

but u see inverter and CCFL backlight bulb failing symptoms are so same that u cant simply distinguish but i am sure u have one of these two problems inverter is more chance

Kindly rate me well

Regards

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