LG sets made in 2018-2019 with BOE panels (including but not limited to European markets) are at a high risk of developing a fault with the screen panel/LCD module. The screen appears black, but the backlight behind is on - the 'OFF' state of LCD screens is black (blocks the backlight).
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Mainboards of these sets have two versions: ones with two ***wider*** #1 and #2 LVDS connectors (68 pins each, for BOE panels) or two a little shorter LVDS connectors (60 pins, for LGD panels).
LG sets made in 2018-2019 with BOE panels (including but not limited to European markets) are at a high risk of developing a fault with the screen panel/LCD module. The screen appears black, but the backlight behind is on - the 'OFF' state of LCD screens is black (blocks the backlight).