led tv but is not powering on ,

@kimsa let us know what make and model your TV is. Then let us know what you've tried. I suggest you check the power source first, then the power cable and finally remove the back of your set and check the power board. See if you have power going to the board. If you do, check the fuses on the power board and the outputs. For that you'll need a multimeter etc. Again, let us know the exact model number of your TV so we can continue to try and assist you. Explain what you mean by this "am bored to buy the full sacket/motherboard"

I thought your tv having power board issue. It is the electrolytic capacitors on the power supply board. Unplug the set and remove the back, find the main power cord receptical and follow the wires to the power supply board. The capacitors look like little beer cans with a flat aluminum surface on top. If any of them are domed up (not flat) or leaking they are bad (althought some can be out of limits without any physical symptoms).try to fix it.

May it works

The power board is broken,I have the same problem,and I bought a tv power board from abctay.com ,and the problem solved.