Common problems and solutions of outdoor information display?

  The rapid development of Internet informatization has promoted the development of digital signage. Due to its own advantages, outdoor information display occupy a dominant position in the media advertising industry, and the field of application industries is gradually expanding. Although it is widely used, many users still do not understand some technical knowledge of outdoor information display, and lack the basic knowledge and skills to solve problems. Sometimes in the process of using, there are some small problems, and don’t know how to solve them, so they can only find after-sales technicians for help, or even blind maintenance, which greatly wastes time and financial resources. In order to let more users understand the basic technical knowledge of outdoor information display and how to deal with failures, and prolong the service life and stability of outdoor information display, today we will take you to understand several common problems and solutions during the use of outdoor display.

1.When the outdoor information display is turned on and off, there are noises on the screen: Generally speaking, this situation is caused by the signal interference of the display card. This is a normal phenomenon and can be solved by adjusting the phase automatically or manually;

2. There is no response after the outdoor informatoin display is plugged into the power supply: In this case, you can first open the back cover of the device to check whether the power cord is well connected and whether it is loose. Check whether the power supply is normal, the indicator light can be measured with a multimeter, if the normal light is the power supply. If there is no problem with the power supply, you need to check other components, such as the drive board, decoder board, high voltage bar, LCD screen, and audio in turn. If there is no power, there is a problem with the parts there;

3. There are black spots on the display of the outdoor information display: Most of these problems are caused by external force extrusion, just like computer and TV screens. When squeezed by external force, the polarizer in the liquid crystal panel will be deformed, squeezed and sunken, and will not recover automatically. Although it will not affect the performance of the advertising machine, it will affect the appearance of the entire screen, so the advertising machine, do not press the screen with your fingers, and do not be squeezed by other sundries;

4. Screen flickering: If the screen flickers during the playing of the outdoor information display, first check the external factors such as the magnetic field around the machine. to professional technicians;

5. Black screen, the display signal is out of sync range: In this case, most of it is because the display detects an abnormal signal, you can restart the display and reset the output frequency of the computer; 

6. No sound when playing: check whether the speaker is powered on, Whether the connection is normal. If the horn is noisy, the driver may be damaged and needs to be replaced;