If the hardware is OK, try restoring the factory settings or updating the firmware to see if it can solve the problem;If not, please consider warranty or purchase a new TV
Check the power supply and brightness settings to ensure that these minor problems are not the cause.If everything is good, the picture tube may be aging and may need to be replaced
If the image is normal but suddenly there is no display, it may be that the screen is faulty. It is recommended to contact professional maintenance personnel to check
