Can someone help me out a bit? I have the skills and the tools—just need a little guidance

Thanks for your reply. So, I understand that if legs 1 and 3 are shorted then it's ok?...

I opened the TV and tested each LED strip, and they all work fine. Checked voltage on the CN400 plug that goes to the LEDs and LED1 I had 62.6 volts and on LED2 I had 38 volts. How much should it be? what can be the cause? On the back of the board there is a Transistor (I think), the part number is BR10T100. What should be the reading? I tested it and had a Short between the 2 small legs. is that OK?...