My tv is not starting and led light not turn on

@gamingshorts we need to know the exact make and model for you tv.

Regardless of what make and model it is, if the power LED doesn't come on, your powerboard does not work or does not get power from the outlet. Check the cable, check the outlet. After that pull the back cover off (unplug your TV) and check the fuses on the power board. You don't want to touch anything with your bare hands until after all the capacitors have been discharged. You don't want to get zapped by one of those charged capacitors.

Again, make and model and post some good pictures of all of your boards with your Question. That way we can see what you see and hopefully we get your TV to work again.

在已经存在的问题里加入图片