@paulnabita standby is a good thing. I suppose it does not turn on. If so, it is most likely a mainboard issue. You will have to take the back cover off and measure the voltages from the main board to the power board. Remember, it is the main board that tells the power board which circuit to turn on etc. If in doubt on where to measure etc. Post some well-focused pictures of your boards with your Question. That way we can see what you see and hopefully help you further. Also, what exact model is your Hisense TV. [guide|21499]