The continuous promotion of the economy and the development of science and technology are obvious to all. LED displays are now a relatively common large-scale projection equipment in our lives. In the process of use, it is inevitable to encounter faults. Next, the editor of YONGS LED display will teach you how to identify faults and how to deal with them:
1. Check whether the graphics card setting part is set properly. The setting method according to the needs is in the CD-ROM electronic file, generally it is the copy mode.
2. Check the basic connections of the system, such as DVI cable, whether the network cable socket is correct, the connection between the main control card and the computer PCI socket, the serial port cable connection, etc.
3. Check whether the computer and LED power system meet the needs of use. When the power supply of the LED screen body is insufficient, when the display is close to white (a lot of power consumption), the screen will flicker. According to the power supply requirements of the box, prepare an appropriate power supply, or appropriately reduce the overall display brightness.
4. Check whether the green light of the sending card flickers regularly. If it flickers, go to step 6. If it does not flicker, restart it. Before entering win98/2k/xp, check whether the green light flickers regularly. If it flickers, go to step 2. Please check Check whether the DVI cable is connected well. If the problem is not solved because one of the sending card, graphics card and DV cable is faulty, please replace it and repeat step 3.
5. Please set according to the software instructions or re-install and then set until the green light of the sending card flashes, otherwise repeat step 3.
6. Check whether the green light (data light) of the receiving card flashes synchronously with the green light of the sending card. If it flashes, go to step 8 to check whether the red light (power) is on. If it is on, go to step 7, if it does not light, check the yellow light (power protection). Whether it is on, if it is not on, check whether the power supply is reversed or the power supply has no output. If it is on, check whether the power supply voltage is 5V. If it is, turn off the power supply, remove the adapter card and the cable and try again. If the problem is not solved, the receiving card is faulty, replace it To receive the card, repeat step 6.
7. Check whether the network cable is well connected or too long (standard super 5 network cable must be used, and the network cable without repeater has a long distance of less than 100 meters). Check whether the network cable is made according to the standard (please refer to the system installation and settings), If the problem is not resolved because the receiving card is faulty, replace the receiving card and repeat step 6.
8. Check whether the large screen power light is on, if not, go to step 7 to check whether the interface definition line of the adapter card matches the unit board. Note: After most of the screens are connected, there may be no screen or blurry screen in some cabinets. Because the RJ45 interface of the network cable is not firmly connected, or the power supply of the receiving card is not connected, the signal is not transmitted, so please re-plug The network cable (or exchange), or plug in the receiving card power supply (pay attention to the direction) can solve the problem
