Building intercom manufacturer's door-to-door maintenance preparation:

Floor protection device, floor decoder or video distribution amplifier and other floor intermediate equipment of building intercom system are collectively referred to as floor platform! (for any floor platform problem, first check whether the lines at each line end are connected properly, whether the power indicator light is on, and then disconnect the lines of the primary power supply, and then power on and try again): the functions that the building intercom manufacturer should guarantee: household 

isolation protection, video processing function, specifically, it must have the intelligent distribution and isolation protection of audio, video, data signal and power supply.

1、 Building intercom is different from other electrical appliances. We must know some necessary knowledge. I think it is necessary to understand the following aspects:

1. Name of manufacturer, telephone number, installation time and installation company of building intercom;

2. The wiring diagram and instruction manual of the building intercom system, if any, should be found together;

The function of these two preconditions: to understand the production enterprise of building intercom is to consult the technician of the production enterprise in the case of no choice; to understand the installation company is to avoid unnecessary mistakes between peers Yes, there will be no vicious competition or man-made damage. To understand that the installation time is based on conventional damage to evaluate the problems; to understand the wiring diagram, instructions and maintenance files is naturally to complete the maintenance work faster and better.

2、 Maintenance tools: screwdriver, universal meter, adhesive tape or heat shrinkable tube, one 2m long 10 core sheathed wire, one adjustable power supply, spare electronic circuit board provided by the manufacturer;

3、 General problems: no unlocking, no hearing, no image, no call, no password, no swipe card, no indoor unit

4、 Troubleshooting sequence: first power on, then line, and finally test other functions!

5、 Precautions for maintenance of building intercom manufacturers: power must be cut off for all connecting and removing operations! (it is easy to cause short circuit in case of continuous power supply).