Chosen Solution
Hi I tested the LEDs one by one with LED tester and working fine but the TV switches it self off after a while do you think this is a power board fault?do you know how to test the power board?thanks
Gadu muzik, this is a Toshiba 55l7453d? It could be the power board but remember that it is the main board that tells the power board to turn the LED’s on (simplified). You did not tell us if you have sound on your TV at all. If not then it is most likely the power board. If it does have sound but no picture it could be the main board/power board.Some Toshibas will also have black screen but sound with a bad T-Con board. So we need to see more of your boards. Post some good pictures with your question Adding images to an existing question
