Voltage testing to help find problem for BN44-00564C power supply for No Backlights Click Here for Replacement Parts: http://www.shopjimmy.com/catalogsearch Fix #4: Faulty LED Backlight on your Samsung TV. If other functions on your Samsung TV are working (audio, indicator light, etc.) except for its display, thereā€™s a chance that it has an issue with its LED backlight system. To further confirm this, you can try doing the flashlight test. If your Samsung TV is flickering in one spot only, then this is a sign of a backlight problem. As most modern Samsung TVs have the backlight voltage inverter on the Power Board, you can use a multimeter to confirm that it is powering your backlight, although in my experience, voltage inverter problems show as an entirely darkened screen Options. dany613782 this looks like failed LED backlight strips. You will need to replace those. Not a bad job on a panel this size. Of course, you want to measure the voltages on the power board going to the backlight LED are the right voltage. If that voltage varies greatly then the issue would be the power board. Samsung UN50NU7100 backlight issue troubleshooting. I have a Samsung UN50NU7100 that recently stopped working. When plugged in the tv has no image and the backlight turns on and then flickers and turns off over and over again. I thought it was the power supply board so I replaced that and still had the issue. I disconnected the main board from Solved: I have a 43 inch qled Samsung tv that I bought at the end of 2019. Now that my tv is out of warranty, the whole right side is - 1818287 SAMSUNG TV repair - replacement of the LED display backlight module. A characteristic symptom of this malfunction is the presence of sound, but no image. To Samsung pioneered edge-lit technology when they launched the worldā€™s first edge-lit TV back in 2009. LED TVs can have up to 1,500 individual LEDs in an array, lighting two million pixels of a 1080p TV. A single led light may illuminate 1,400 pixels. Direct-lit TVs donā€™t have local dimming, but newer, more advanced full array technology does. After watching a troubleshooting video by ShopJimmy.com, i discovered there is still a picture but no backlighting. On the video it recommended that the led driver board be replaced to fix the issue. I have replaced the old hybrid power supply/LED driver board in the TV with a new one and this did not solve the problem. Method 6: Replace Backlight LED Strips. Before I started, I mentioned that this issue is caused mainly by a backlight problem. If you have tried all five troubleshooting approaches and it still didnā€™t work, you would have to perform a hardware fix by replacing the backlight strips. Method 7: Contact Samsung TV support. tUw35R.