Hi. I have a faulty LG 43UH610T 4K IPS LED TV. At first, the TV suddenly produce a this horizontal line. After searching the internet, the probable solution is to change the T-Con board. I’ve changed the board and now the problem that I’ve faced is only half of the image shown in the TV. The thin horizontal line still appears. Does anyone know any other solutions that I can try? Maybe the ribbon cable issue connecting the T-Con to the source board?