Folks this is the solution, I was skeptical at first but with an LG 60 Plasma 2011 model out of warranty and a new PCB board (has HDMI ports embedded on) was at best price $280, I could add $20 and get a 50' Brand new. Also wasn't going to pay LG $200 for a service call to fix this known issue. Again at $200 a service call I add $100 to that I have a new TV. What do you have to lose? save yourself some money and continue getting value for your investment.
Preheat oven to 385 degrees,
unscrew the back panel of the TV, their are alot of screw's, and some by the composite plugs hiding. The ribbon with tape on it, that ribbon is removed by flipping the black piece back and the ribbon slide's out. You are removing the PCB board the one with the HDMI ports on it and some USB's.
Don't be a super-hero and strip any of the outer screw's, ensure your bit is fastened securely into the screw before turning to avoid stripping those screws! I almost stripped one being lazy not applying enough force.
Other than that, it's simple to remove and put back.
Get a piece of cardboard large enough so that the PCB can lay ontop of it without any of the sides exposing.
Put the PCB board into the pre-heated OVEN at 385 degrees for 8-10 minutes.
Remove PCB board from oven, allow it to cool for 30 minutes.
Screw it back on, screw on the backplate.
Congratulations!, Your Done. Fire it up and Watch Some TV.
Website link below to the fix:
LG Plasma 60ZP550, same issue, HDMI ports went dead. Baked the Primary control board ontop of some cardboard for 8 minutes @ 385 degrees, allowed it to cool for 30 minutes., connected it back and everything is working again. The step by step tutorial on http
/zedic.com/lg-42dl550-fix-repair/ is what I used, it applies to all LG TV's with this known issue. Thanks to the person that posted that fix.