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Samsung tv backlight problem

My tv recently went black while i was watching news.i replaced power board,main board and led stripes but the backlight doesnt turn on.can it be the tcon??

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  • 101 Answers

Replace the backlight inverter board.

Posted on Aug 18, 2019

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6 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE:

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Posted on Jan 02, 2017

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  • 727 Answers

SOURCE: Samsung 46" LED - Screen goes to black every 15 sec and then comes back shortly. Do I need to replace tcon or main or is there something else possibly wrong?

Hi Todd,
Screen goes black means back lights go off. The power supply may not be responsible for this problem. Please check back light on command from main board. Good luck.

Posted on Jan 11, 2015

gopakumarg43
  • 76100 Answers

SOURCE: I have a LG led tv 55LS4500. Tv is showing a black screen, but has sound and the backlighting is good. I have replaced the tcon board with no results. What should my next course of action be?

Sounds like panel fault. Contact the authorized service center for LG. If you wish to get some details; check the site linked here. Pull up older posts. Surf the site with patience. http://electronicshelponline.blogspot.com/
Faults & possible causes to LCD screen are given with illustrations. You can get an idea about the fault to an extent.

Posted on Aug 15, 2015

gopakumarg43
  • 76100 Answers

SOURCE: Model e550i-b2. Backlight comes on but why no picture?

T'Con board fault. If you wish to get some details; check the site linked here. Pull up older posts. Surf the site with patience. http://electronicshelponline.blogspot.com/
If you wish to get assistance over phone, visit this site. https://www.6ya.com/

Posted on Nov 02, 2015

emissionwiz
  • 85160 Answers

SOURCE: Samsung UN50H6350AF LED TV. No picture. I do get backlights and sound. (See pic) I tried replacing the main board and the T-con board and there was no change. Any suggestions? Try power supply board?

You have wasted enough money guessing bite the bullet and replace the TV. I have done this same thing and regret it to this day, should have just junked it.

Posted on Dec 02, 2016

dbobadilla
  • 21 Answers

SOURCE: The backlight is out on my Vizio E500i-B1 LED TV. Can you help me locate the LED driver board? It is not a part of the main or power boards, the Tcon board is under the metal cover in pic. Thank you!

Yes go to SHOPJIMMY.com they will have vids on how to test and all the parts you may need. Good Luck

Posted on May 03, 2017

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1 Answer

Can you help me troubleshoot my TV? It has audio but no picture.


Use a voltmeter to confirm all the voltages are present when the TV is powered on. If they are all correct then replace the led driver.

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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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Samsung UN65EH6000FXZA (Version YH02)


There is three possibilities:
1. Defective back lights LED strip.
2. Defective LED driver section integrated in the main power supply.
3. the main board.

How to check it:
1. You need a LED back lights tester to check the strips, or open the panel, use a 3.7 V DC power supply to test each LED diode separately.
2. Use a multi meter to test the out put DC voltage from the connector to the LED strip between the + & - for each section, (like 1+/1-, 2+/2- etc.) it should read 140 - 220 V DC. (need power up the TV).
3. Un-plug the cable between the main board & the power supply, power up the TV, if you get the back lights light up, the main board is bad.

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1 Answer

Do I need to replace the LED pannel of my tv if there is backlight?


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/
To some model sets; especially LED back-lighted types; the back-light inverter circuit will be part of the main power supply board [SMPS]. In such cases, the power supply board might need replacement. To some models sets, the back-light inverter and SMPS section circuit will be integrated at its main board itself. If so; the main board should be replaced. To some models of sets, all these section circuit will be integrated at its main board. If this is the case, you have to replace the main board.

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In most of the case, the problem is the LED back lights strips, it was the most case we encountered.
To check it, un-plug the cable between the power supply & the main board, apply the AC power to it, if the back lights came on, replace the main board, if not, mostly the problem is the back lights LED strips.

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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/ To some model sets; especially LED back-lighted types; the back-light inverter circuit will be part of the main power supply board [SMPS]. In such cases, the power supply board might need replacement. To some models sets, the back-light inverter and SMPS section circuit will be integrated at its main board itself. If so; the main board should be replaced. To some models of sets, all these section circuit will be integrated at its main board. If this is the case, you have to replace the main board.

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Back - light problem. 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://electro-medical.blogspot.com/
To some model sets; especially LED back-lighted types; the back-light inverter circuit will be part of the main power supply board [SMPS]. In such cases, the power supply board might need replacement. To some models sets, the back-light inverter and SMPS section circuit will be integrated at its main board itself. If so; the main board should be replaced. To some models of sets, all these section circuit will be integrated at its main board. If this is the case, you have to replace the main board.

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