2 LG TV has weird flickering blue cast on picture
Recently, my LG49UH610T 4K TV started flickering - it isn't the backlight but one of the colours flickering on and off, leaving the screen with a mostly blue colour.
This flickers on and off constantly (but these days it is mostly blueish)
Weirdly, there is a narrow stripe at the top of the screen that is still the right colours:
I have already tried reattaching all the ribbon cables on the boards, and then bought a T-Con board off e-bay but that didn't fix it (actually, maybe it made it worse, so perhaps it was a dud). I then replaced the controller board but that made no difference.
My question then is what to try next - should I get another T-Con board and hope that it works? Or is it likely to be something else going on?
Edit - adding some photos of the boards.
6870-584B T-CON board
EAX66943504 main controller
EAX66923201 Power supply board
Overall arrangement:
Closeup of T-CON board
Connection to screen
Update 1 Mar 2023
After replacing the T_CON board, the screen is not flickering, however the colours remain distorted.
There is a narrow strip along the top of the screen which is uncorrupted
Update 2 Mar
Here is the screen when removing one of the pair of ribbon cables coming out of the T-CON board.
1 Removing the cable on the left
2 Removing the cable on the right
Questa è una buona domanda?
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