Flickering flashing TC board LEDs or both??


Novice Member
I've got an LG 50lf561v which has a perfect running PCB (rev 3.0 with 1.8) I've taken the TV apart and seen the top lights flashing on and off every second or so, but the lower board lights aren't.
I've done a test from pc. To led connector and it's reading 140 on one side and flux of 120 - 360 on the other ( lights are also ALL on semi flash)

WHEN I DO THE Torch test I see the TV display and not a black image. I can read the The settings screen to reset and turn off demo, back light adjustments etc)

I've also replaced the pcu but issue is still there.

Is it the LCd board controller or the ribbons to the bottom LCD connectors OR is it something like the LCD's throwing out the LCD controller board?

Or something else?

Pleeeease any advice will be great :)

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