u/Important_Arm_8440

I’ve received a 75” QN800BFXZA free of charge with the hopes I could repair it.

It seems the backlight has gone out. Randomly stopped showing picture. The picture is still visible with a flashlight.

Is this 100% the backlight? Could a bad led board display symptoms like this?

Part number for the backlight seems to be BN90-12343Z. However, I cannot locate where to purchase this.

Is there anything else I can check? Tightening led board cables? Resistors etc. that are know to go bad?

Any help, assistance, knowledge etc is greatly appreciated!