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Samsung UN55J6201AFXZA LED TV has no visible display. Replaced boards to no avail.

Assumed after doing the flashlight test and revealing that the left side has a faint display that is not backlight and the right side has absolutely no display that the inverter board (power board in this case) needed replacing. I replaced all three boards on the back and all of the reachable cables, but have the same result. Any thoughts on any next steps ?

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  • Samsung Master
  • 2,015 Answers

Only a service-manual and soldering tools in this case can give results how are the fpc connectors and circuits connected to the screen also a little repair suggestion = to see here much problems caused by wet cleaning the screen and sometimes build-up heat by sun rays or bad airiation.

Posted on Dec 08, 2019

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6 Suggested Answers

6ya6ya

6ya staff

  • 2 Answers

SOURCE:

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Posted on Jan 02, 2017

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eagle338

eagle338

  • 4889 Answers

SOURCE: right side of samsung ln52a580p

This is not an issue with the main board . Its a clear case of faulty LCD controller board or the LCD panel itself is faulty(most likely). I suppose the sound is not affected?

Posted on Feb 15, 2011

Martin Murray

  • 1623 Answers

SOURCE: Replaced caps on the psu / inverter board, but

your inverter has gone , if you can see the screen faintly then the inverter isnt illuminating the backlight
it needs replacing

Posted on Mar 03, 2011

gopakumarg43

The Knight

  • 76204 Answers

SOURCE: 2nd try see last sentences....lg led 32ln5310 tv, sound but no picture, no backlights, nothing visible on flashlight test, what should I replace? Main board, T-Con Board, Power Supply board or Leds

The main power supply regulator section circuit fault. Either it will be a separate board, or the part of main board. Check and replace damaged component/s at its main power regulator [SMPS] section circuit. Contact any service technician. If you wish to get some details; check the site linked here. Pull up older posts. http://electronicshelponline.blogspot.com/ It will be best to replace the power supply regulator board as card basis rather than making "Surgery" to it; which usually will make loss for both money and time. Even though you can make it right, it will cost around an amount equal to the cost of a new board; including the cost of (spare parts + service charge) More to say, most of the spare parts to it will be difficult to get from open electronic spare part market. This is true to most of the flat panel TV power supply boards; irrespective of its brand and screen size.
Search the site by type in the "brand name" to your device; in the "Search box at the top right of the display window of the Homepage" to get gathered related posts.

Posted on Feb 10, 2017

richie46

  • 12962 Answers

SOURCE:

Replaced wrong board. Board that controls the image on the screen is the t con board. Inverter board is for powering the leds.

Posted on Sep 08, 2017

Larry

  • 2800 Answers

SOURCE: LG 47LN5750 No picture

If you have backlights its not going to be the tcon for future reference. you have some shorted or open LEDs in the panel. Check the voltage going to the LED sets, should be 100 plus volts

Posted on Nov 16, 2017

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