Most common issues are: Defective capacitor on the power supply board. Defective LED in the backlight system….Repair. Replace the whole strip with a new one. Replace the LED with a new one. By-pass the LED and cross our fingers that the backlight will still be homogeneous enough.
2. open TV by removing back cover (place TV face down, remove all screws, lift plastic back off) 3. remove metal plate that covers the T-con board, at the bottom of the TV. use caution not to damage ribbon cables attached to the T-con board. 4. disconnect top ribbon cable by squeezing the sides of the adapter and pull it out carefully. Modern 15. Press and hold the FN key whilst pressing the keys that brighten or dim the lights. If it started to flicker then it stopped the chances are the LED's have failed or the controller chip. Do I have to take it in to get it fixed? if so where do you think would be the best place to do so. LED TVs do not contain incandescent bulbs and do not “burn out”. The LEDs in the TVs backlight can become defective which can severely affect the picture. The LEDs in a TV should last for at least 50,000 hours at maximum brightness with continuous usage. LED TVs are simply LCD TVs with LED backlights. They need an LED backlight because the LED LCD backlights are small light strips, or light sources, contained inside a display, TV, or monitor to provide lighting for the screen. All LED TVs are LCD panels with LED backlighting. A common misconception is that LED displays are different from LCD when fundamentally they are the same. LED is better described as a sub-set of LCD devices.

Backlight Not Working in Hisense TV. The most likely hardware problem with your Hisense TV is the LED backlight. Due to this, your TV screen looks black, but its sound is heard, and the LED light of Hisense TV also works properly. A shot at the mainboard or power board circuitry renders the LED backlight unusable.

Samsung 43" LED TV LED Strips Replacement TutorialCLICK HERE for replacement LED strips: https://www.shopjimmy.com/samsung-bn96-37294a-bn96-37295a-replacemen
TCL LED Strips Replacement Tutorial - 65" TVCLICK HERE for Replacement LED Strips: https://www.shopjimmy.com/tcl-006-p1k3507b-replacement-led-backlight-stri
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    • led tv backlight not working