Eight steps to troubleshoot the LED display system
Date: 2019-12-10
Note: After most of the screens are connected, there may be no picture or screen display in some cabinets. Because the RJ45 interface of the network cable is not firmly connected, or the power of the receiving card is not connected, the signal does not pass through, so please replug Network cable (or replacement), or plug in the power supply of the receiving card (note the direction) can solve the problem. System troubleshooting-eight steps to troubleshoot the LED display system.
Step 1: Check whether the settings of the graphics card are set properly. The setting method is available in the CD-ROM electronic file according to your needs. Please refer to it.
Step 2: Check the basic connection of the system, such as whether the DVI cable, the network cable socket is correct, the connection between the main control card and the computer's PCI plug, and the serial cable connection.
Step 3: Check whether the computer and LED power system can meet the requirements. When the power of the LED screen is insufficient, the screen will flicker when the display is close to white (more power consumption), and a suitable power supply is prepared according to the power requirements of the cabinet.
Step 4: Check if the green light of the sending card flashes regularly, go to step 6. If it does not flash, restart and check whether the green light flashes regularly before entering win98 / 2k / xp. If it flashes, go to step 2. Please check whether the DVI cable is connected properly. If the problem is not solved, one of the sending card, graphics card and DV cable I is faulty, please repeat step 3 after replacing it separately.
Step 5: Please follow the software instructions to set or reinstall until the green light of the sending card flashes, otherwise repeat step 3.
Step 6: Check whether the green light (data light) of the receiving card flashes in sync with the green light of the sending card. If it flashes, go to step 8, check whether the red light (power) is on. Protection) Whether it is on. If it is off, check whether the power supply is reversed or there is no output from the power supply. If it is on, check whether the power supply voltage is 5V. , Replace the receiving card, and repeat step 6.
Step 7: Check whether the network cable is well connected or too long (must use a standard Category 5 network cable, the longest distance of the network cable without repeater is 100 meters), check whether the network cable is made according to the standard ) If the problem is not resolved as the receiving card failure, replace the receiving card and repeat step 6.
Step 8: Check if the large screen power light is on. If it is off, go to Step 7 and check if the interface card definition line of the adapter matches the unit board.
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