Talking about the Maintenance of Forest Vertical Visual Intercom System

There are many reasons for this. First of all, your family can't speak, or all of them can't speak. If the audio of a possible main line is good, then the source of the fault should be the floor distribution board and your extension. If everyone fails, the problem may be that the host and audio bus cannot be unlocked. Make sure it is locked first, and the unlocking part of the host control is good. Generally, the host computer is controlled by a single chip microcomputer, so it is necessary to look at the schematic diagram before checking the communication part. I don't know what communication bus your host uses. If it is a 485 bus, press the monitor to see if there is an image. If there is any indication that the display signal can turn on the camera smoothly through the bus, it is not a line problem. Maybe the unlock signal didn't come out, or the host couldn't unlock it after receiving the signal. There may be a problem with the part where the host controls unlocking. I don't know what happened in your house. Anyway, I am also repairing building intercom in the community, so I ask our company to maintain the property. Generally speaking, the manufacturer installed a two-year warranty, which is broken. It should be repaired by the manufacturer. We have been repairing intercom in residential buildings for 8 years. If the answer is useful to you, please adopt it in time.