Hello, the same thing happened to me with a philips 39, I thought they were the LEDs that burn and not, I tried them separately and it worked and I checked and they didn't give me a chance to make them turn on and I didn't get it to change it and it occurred to me to take a risk, buy a 5v relay that connects the coil to the output of the usb so that when you turn on the TV it activates and find where to get the necessary voltage for the LEDs to turn on I recommend if they are 6v calculate less so that they do not work at the limit, connect negative Attrib from the source and positive cut with the normally open relay switch, so that when the TV turns on it activates the usb of the main, activating the coil and sawing the circuit that the LEDs light and ready, I just stay to accommodate the Relay inside the TV so that the lid is good and ready, if you do it well insulated it looks good, it is not the ideal arrangement but if you do not grant replacement I think there is no other,