Solved! White vertical line

[jyothish680]

Yes LG 49LH590V centre 4 inch width white vertical line

 

[paulchezter]

Try to check if the white line appears to all channels,if not, it's only the signal of the TV, if there are still white lines, check the cables connected and see if there are changes, if the white lines still appears, do a picture test. If white lines still shows on picture test, possible replacement for LCD panel.