Vizio 70" LED TV LED Strips Replacement TutorialCLICK HERE for replacement LED strips: https://www.shopjimmy.com/vizio-svg700a10-led-backlight-strips-12-e70u 8. Blinking LED Indicator. When the TV is turned on, the LED indicator may blink rapidly. This indicates that there could be a hardware problem. If it blinks six times, it could mean a backlight/mainboard, powerboard, or inverter board problem. Common LG TV Picture Problems. How to Fix. LG TV Turns On But No Picture or Sound. Unplug your TV. Hold down the power button for 15 seconds. Wait 2 minutes. Plug your TV back in and switch on. My LG TV Screen is Black But I Have Sound. Check for backlight failure with the flashlight test. LCD and LED do not work in the same way as CRTs, either. LCD and LED screens use backlit liquid crystals to display colors. Although manufacturers market screens using LED and LCD, an LED screen is still a type of LCD. The white backlight filters through the liquid crystals, which extract particular colors per pixel. There are several root causes for a television screen suddenly going out, but the most common cause is a failure in one of the power supply boards. Cause of One of the more common problems with LCD displays is the potential for stuck or broken pixels, where the pixel either does not receive a voltage and remains black, or does not respond to voltage LED TV Backlight Problem Solution| How to repair LED TV No Picture Problem 🔥🔥🔥LED TV REPAIRINGLED TV Panel RepairLED TV Backlight RepairLED TV Driver Boa This video is about repairing the backlights of LED TV. TV repaired in this video is samsung 6 series FHD LED 3D TV [ F6400 ]. TV has sound but no picture. B Sony Bravia TV, #Sony_Bravia_TV_Turns_On_But_No_Picture, NO DISPLAY PROBLEM,sony led tv display problem,sony bravia 32 inch led tv display problem,LED TV scr Commenting on this thread to add that I've created a manual for fixxing this problem (Samsung Television UE49KU6640 Backlight Replacement). Had the same problem with my Samsung 6 series curved tv. One of the LED's was not making proper contact which caused a quarter of the backlight to fail (exactly the same as you). 2L6V818.