The access control monitor is blank. What's going on here?

The black screen of access control display may be caused by the following aspects:

1. power failure: it may be a power failure, which causes the access control display not to work normally. You can check the power cord, power switch, power board and other components to determine whether it needs to be replaced or repaired.

2. Display failure: If the access control display is used for a long time, it may lead to white screen due to aging or damage of the screen. You can try to replace the monitor or repair the monitor to solve the problem.

3. Wiring problem: If the wiring used in the access control system is poorly contacted, disconnected or damaged, it may also lead to the white screen problem of the display. You can check whether the line connection is normal, and if there is any problem, you need to rewire or replace the damaged line.

4. Access control system software failure: Access control system software problems may also lead to a black screen of the access control display. You can reinstall or update the system software to solve the problem.

5. Other reasons: In addition to the above factors, there may be other reasons for the black screen of the access control display, such as damage to access control equipment and system configuration errors.

To solve the problem of black screen of access control display, it is necessary to carefully check the cause of the failure and repair it in time. If you can't handle it yourself, you can contact professional maintenance personnel to solve it. At the same time, it is necessary to strengthen the maintenance of access control equipment to avoid failures.