Repairable? LG OLED black screen of death

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LG Television

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Stuart @stu78

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发帖于: 2022年8月15日

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Repairable? LG OLED black screen of death

Hi, My LG TV from 2018 - model OLED55B7T - over about 4 hours went from normal function, to displaying a fully black screen for a few seconds, and now is completely black. TV is on, I can hear sound, but nothing at all is displayed on screen, no matter what buttons/menu’s I try and enter.

Question is, has anyone repaired a TV from a similar state back to working condition or am I wasting my time to even try? Technicians are expensive here (Australia) for them just to even turn up and assess.

TIA.

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I have taken the back off, no obvious fried components. There is a large power supply PCB, a smaller PCB that controls the screen, and other bits and bobs. I can but spares of these, but each one is about ~15% of the replacement cost. Any confident opinions on which board to replace?

由 Stuart 完成的 2022年8月20日

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I have taken the back off, no obvious fried components. There is a large power supply PCB, a smaller PCB that controls the screen, and other bits and bobs. I can but spares of these, but each one is about ~15% of the replacement cost. Any confident opinions on which board to replace? — Stuart