Nowadays, many families are inseparable from TV. With it, we can follow dramas, understand current affairs and news, and learn. I believe that many people have encountered some malfunctions when watching TV, such as black screen, snowflakes, etc. So what is the fault that there is sound on the black screen of the TV? Next, follow weier to take a look.

1. There may be a problem with the circuit. In this case, first check whether the 12V and 5V voltages of the device are normal. If there is no problem, it may be a problem with the input circuit level, usually the fuse of the power supply. If there is a problem with the burned or stable chip, just replace the relevant accessories.

2. If there is no problem with the power supply, there may be a problem with the drive circuit, and a black screen will appear. In this case, connect the monitor to the host, and then turn it on for inspection. If you can find a dim image close to the screen, it means that there is a problem with the circuit that drives the switch of the high-voltage control board, and the fault can be restored to normal. It may also be that the backlight behind the screen is damaged, just replace it with a new one.

Guangzhou Wanteng Electronics Co., Ltd. (abbreviated as Wanteng), established in 1987, has been engaged in the electronics industry for more than 20 years. Our registered trademark is "Weier",provide one-stop service of R&D, production and after-sales. We have obtained ISO9001 international quality management system certification, and our products have fully passed 3C and ROHS certification.