1. open the back cover of the TV, disconnect the cable between the main board & the power supply. 2. Apply the AC power to the power module, if the back lights are not light up, change the LED strips (IF the back lights are bad, in some case, the power supply also been damaged), If the back lights are light up, please change the main board.
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1. open the back cover of the TV, disconnect the cable between the main board & the power supply.
2. Apply the AC power to the power module, if the back lights are not light up, change the LED strips (IF the back lights are bad, in some case, the power supply also been damaged), If the back lights are light up, please change the main board.