Sir,
Here, this TV for some time the backlight goes off abruptly and no image, while the sound remains unchanged.
This is the same with all sources and even when streaming from the internal library.
At the beginning it did it once or twice a week and to restart it you have to disconnect it from the mains for a while.
In the last few days she has been walking for just an hour or so and day by day her walking time is decreasing to less than a minute.
This backlight power cut is accompanied by a slight clicking sound that can be heard when you are close to the back of the TV and the cover removed.
No defect is visible on the electronic plates. When she walked before the few hours, no finding of heating on the components.
You will find attached some photos including electronic plates and pdf documents including electronic diagrams.
While waiting for you to give me your opinion on this failure, please receive my sincere reshuffles and greetings.
A.TADLI