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How To Repair Board HDMI not working on LG TV model 47LE400UC
Have LG LCD model 47LE5400 UC want to know what has to be replaced on the board since this board no one has the HDMI are not working at all
ANSWERS:
I had this same issue. I lost all HDMI, USB, Ethernet, and antenna ports. Since the TV is out of warranty, and I couldn't harm it further, I decided to open up the TV and remove the main board. I placed a pizza stone in the oven (do not use a metal pan!) and heated it to 385 degree F. I placed the board on the pizza stone and baked it for 10 min to soften the solder joints. Once cool (do not move the board until cool!), I put the board back into the TV and powered it on. I plugged in my PS4 to test it and like magic the TV works again. All ports are usable and I saved myself a $235 repair bill. And now I don't have to buy a new TV! Hope this helps!
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