1. There is a problem of black screen or flower screen in the display, which is usually caused by the backlight of LCD TV is not bright. It may be that the backlight lamp is damaged or there is something wrong with the power board.
2. Image color distortion or image flicker, which is generally related to the image signal. There may be a problem with the signal source, or there may be a problem with the chip that processes the signal inside the TV.
3. The sound is noisy or the sound disappears, which may be related to the audio output device. There may be a problem with the audio chip inside the TV, or the speaker is damaged. If external audio is used, it is also necessary to check whether the external audio and audio cable are normal.
4. The TV can't be turned on or off normally, which may be related to the power board. It may be that the power board capacitor is damaged or the power control chip is faulty.
To solve these faults, professional repair service is needed, or corresponding replacement and maintenance are carried out according to specific fault causes. In the process of daily use, we should also pay attention to prevent the TV from getting wet and avoiding improper use such as excessive sun exposure, which can reduce the possibility of failure.