In Dalian, Anjubao is broken, there is sound, the image is bright, and nothing can be seen. If the property is not repaired, who can I find to repair it? Is there a phone?

There is something wrong with the video line from the door machine to the indoor extension. Look at the neighbor's house first. If there is an image, you should check the video distributor of the electric well to see if the video cable leading to your home is not connected properly or the distributor port is broken. If there is no video signal in the neighbor's house or upstairs and downstairs, you should check the camera of the door machine to find your home line.