Question about Samsung Televison & Video

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I have a Samsung 46 LCD TV, model LN46c630k1fxza. It powers on and has sound but no backlight or picture even with the flashlight test. How can I be certain which board I need to replace?

Samsung 46 LCD, LN46c630k1fxza

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  • Master
  • 433 Answers

Sounds like what my flatscreen did. What i found it to be when i removed the back is, capacitors had failed in the main board. Only spend 12 dollars on capacitors, hardest part was soldering them in.

Posted on Mar 19, 2019

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  • Contributor
  • 16 Answers

Most likely the screen itself needs replacing, but hard to tell without full inspection.

Posted on Mar 19, 2019

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6ya6ya
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Posted on Jan 02, 2017

  • 257 Answers

SOURCE: Samsung lnr238w (23'') LCD TV has sound but no picture.

You got sound meaning the power supply and mainboard have no problem at all. Look at the back, have you seen back light lit up?
If there is light, the problem may come from T-con board.
If there is no light so the inverter board has defective.

Posted on Aug 14, 2009

gopakumarg43
  • 76140 Answers

SOURCE: lg led tv backlight

Fault with its main board. Short circuited component/s at it. Contact any service technician; or the authorized service center. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts. http://electronicshelponline.blogspot.com/ . In most cases, the main board might have to be replaced. If so, a software [firmware] update too might be necessary.

Posted on Feb 05, 2015

phil_hick883
  • 917 Answers

SOURCE: How can I get my backlights to work on Samsung LCD tv

If your not a TV Engineer , get one to look at it , as you may keep changing the incorrect part.

Posted on Mar 14, 2015

gopakumarg43
  • 76140 Answers

SOURCE: 47' (sic) LED TV, model number m470vse. Why doesn't the backlight work?

Check and replace damaged component/s at its back-light inverter board, or replace this board as card basis. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts. It will be best to replace the inverter board as card basis.
http://electronicshelponline.blogspot.com/
In some models of LCD TVS; the backlight inverter and its T'Con board will be a part of the panel itself, and will be a built-in type inside the LCD panel. If so, they can't be replaced. In this case; a panel replacement is the only repair. For some other models, the backlight inverter section circuit will be a part of the main power supply regulator [SMPS]. To such sets, the power supply section circuit too should trouble shoot. Contact any service technician. The circuit will differ with models and versions.

Posted on May 30, 2015

claudeinmo
  • 9098 Answers

SOURCE: How do I fix my Samsung 40 LED TV that has sound but no picture?

Samsung 60-Inch 1080p 120Hz Slim Smart LED HDTV ...

? 10:42
www.youtube.com/watch?v=hcVhHU322Gk
May 18, 2015 - Uploaded by Thomas M. Landry
samsung un60h6350 60-inch 1080p 120hz smart led tv,samsung... 120hz smart hdtv,slim led tv,65 inch smart tv deals,samsung 40 led 1080p 120hz ... LCD & LED TV Repair - No Image & Blank Black Screen Flashlight Test ...

Posted on Oct 16, 2015

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2 Answers

I have a 32" Samsung LED TV with not picture. Audio is working.


Do flashlight test - if you can see image you need t con board. If no images seen, inverter board. TV Parts Universal TV Stands DLP Chips ShopJimmy

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1 Answer

Hi. I have a Samsung LED 46" model #UN46EH5000FXZA, with no picture but has sound.I replaced the power supply board & T-Con board & still no picture but have sound. What can I do next??


Do flashlight test to see if y0ou can see an image - if so replace the inverter board that powers backlights. If no image then go for the main board.

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There is a good chance that the actual back lights are not working. This could be due to a number of things. The troubleshooting guide is here: http://www.toms-service-manuals.com/?do=search&mfg=Samsung&modelsrch=LN46C670&typekey=0&Search=Submit+Query

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My samsung ln46c630k1fxza 46 inch t v that has no picture or backlights, i replaced the t-con board, that didnt fix the problem. can you tell me how to fix the problem?


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How do I fix my Samsung 40 LED TV that has sound but no picture?


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1 Answer

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.

Feb 08, 2012 | Samsung Televison & Video

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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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Sound but no picture samsung 40" lcd


It's either the backlight lamp or backlight inverter is busted due to a power failure or fluctuation. Here's how to determine which is which:
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  2. Turn on the TV.
  3. Shine the flashlight onto the screen.
  4. If you cannot see any display even a faint one, the backlight inverter is dead, else the backlight lamps are busted.
  5. Replace which ever is the culprit.

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