Can see just a littlebit when I shine a light on the screen

fossdal86 remove the back cover from your TV. Check the power board. Use a multimeter to measure the outputs from the power board to a. the mainboard and b. the LED’s. LEt us know what voltages you get. It is possible that this is a power board issue for not supplying proper voltages to the backlight LED’s or that it is the backlight array which has failed. The least likely possibility is the main board not “telling” the power board to turn the backlight on. Post some good pictures of your boards with your question so that we can see what you see. Adding images to an existing question