Televisions operate at high voltages, if you do not what to do, let it be done by a skilled person.
Do not just replace parts, not everything you find on the Internet gives the proper complaint and solution
Be sure when replacing parts, this prevents expensive costs.
If you need a LG t-con please look at number in the white area, there is a 4 digit number followed by 1 letter and another one digit number. You only need the 4 digits and the letter. Place 6871L- in front of that number and you will find the correct t-con you need. See pictures