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T-con board replacement ?

Hello, I have a Samsung tv and it had a black screen with just sound. Just replaced a T-con board and I powered it up. The display showed "Smart Tv" on the screen for a few seconds and then everything went blank like before. I tried removing the power and powering it up again but display does not show "smart TVs" like before. Could this be a bad display or fault T-con board.

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Larry

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The model would have helped but it sounds like you have bad LED back lights, generally a bad timing board will give a scrambled picture or a blue screen if defective. The lamps are drawing to much current and the safety circuitry in the power supply is shutting off the supplies to the backlights

Posted on Jul 28, 2021

Testimonial: "It is UN65JU670DF. Does that mean the LED burned the new T-Con I just replaced. Any suggestions how to check the LEDs."

  • Larry Jul 31, 2021

    Your T-con board is not defective, a bad tcon board will give a distorted picture or in some cases a blue screen. The LED backlights are strips of button lamps that light up the panel so you can see the picture, you have some shorted buttons on the strips so all the strips need to be replaced. On a set of that size it's not going to be a fun job to do, if you decide to replace them watch lots of youtube vids and be VERY careful with the panel, the panel will have boards connected to the bottom, be really careful with those as the connecting strips can be damaged then the set is junk ( I tape them to the panel when I remove it) nothing worse than spending money on new strips, get them in and everything back together and find the panel has been damaged and the set is no good. You can find the strips on shopjimmy.com, they will run around $90 with shipping and sales tax...Good luck!

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The Knight

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If you wish to get some details; check the sites linked here.
https://elektrotricks.blogspot.com/
https://electronicshelponline.blogspot.com/
Faults & possible causes to LCD screen are given with illustrations. You can get an idea about the fault . Search the site by type in the Brand Name of your set, in its search bar at the right side column, and press enter. See it in Webview with mobile or by desktop. Mobile View has no search box.

Posted on Jul 27, 2021

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