Chosen Solution
My tv is NOT the one I selected, Model number not in list 47LN5400-UA manufactured oct 2013 tried turning it off and on, tried to adjust he picture, but can barely see anything. Tried unplugging while holding down the power button for 30-60 seconds and plugging back in while button depressed, still no picture but with sound. It does this regardless of the input so I know it’s not my PlayStation or the cable box or the wii
See: LG 47LN5400 LED Replacement