Hello
I have a Philips 58PUS8545 which have a vertical moving lines on screen and it is flashing white vertical lines like a every 3-4 seconds.
See the attached image.

I removed left side flex-cable from the t-con and then there was half screen sharp and correct image and other half was white.
But when I removed the right side flex-cable then half of the screen was white but other half was white and above the white there was vertical lines on half of the screen.

T-con two flex-cables have been changed to cross but nothing changed, so it is not due those...