Past 30 Days: 534. All Time: 12,481. My Samsung tv won't turn on, the power led blink twice, I did open the tv and notice the following (1) The back light does go full, dim then off. If I keep the power on, it keep going on the same cycle (2) If I disconnect the main board, the backlight stays full the entire time. TCL 75" LED TV LED Strips Replacement TutorialCLICK HERE for replacement LED strips: https://www.shopjimmy.com/tcl-gic75lb08-3030f2-1d-v1-1-led-backlight-str So in your case I’d start with a power board, then the main board. A failed T-con board should not prevent your TV from turning on. Explain this a bit more in detail “Backlights flicker on “. Measure teh voltages on connector CN201 (Main to Power board) you should show: 1==12V. 2==5V. 3==12V. I'm not sure if it's the same for LED but the various LCD's i have had with the problem were apparantley unrepairable as the issue arises in production and you can only lessen the problem but not solve it so make sure that when the tv comes back that you inspect it thoroughly for any sign of the issue, also take some photo's before the tv is Last Update date : Dec 01. 2022. If your Samsung TV dims or brightens automatically, this isn’t a problem. It is a feature that Samsung has added intentionally. The Ambient Light Detection function (also called ECO Sensor on some older models) measures the light in the room and changes the screen brightness automatically to reduce power Televisions with backlights made up of Mini LEDs have the potential to deliver improved brightness, contrast, and black levels. The technology started appearing three years ago in TCL sets, but Here are a few suggestions you can try to mitigate the issue: Check the backlight settings: Make sure the backlight settings on your TV are properly adjusted. Reducing the backlight intensity might help reduce the visibility of the patches. Perform a factory reset: Try performing a factory reset on your TV to eliminate any software-related issues. This is a 55 inch Samsung UHD Led Smart TV that comes on but one side of the television screen is very dark or completely black. This is a full step by step Hintergrundbeleuchtung am Samsung Smart TV selber reparieren. Reparaturanleitung für Deinen Smart TV von Samsung. Ein weiteres Video zum Thema Hintergrundbel Wholesaler of a wide range of products which include Samsung LED TV Backlights, Samsung Led Tv 32 Inch backlight, Samsung's backlight, LG 22 inch EDGE BACKLIGHT, LG 49 inch 46 led edge backlight and Backlight tapes LEDs TVs. Samsung LED TV Backlights. Ask Price. Samsung Led Tv 32 Inch backlight. Ask Price. D4yg.