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System troubleshooting-eight steps to troubleshoot LED display system failures

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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 socket, the serial cable connection, etc. The connection method already has a legend, please consult the reference carefully
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. If it flashes, go to step 6. If it doesn't flash, restart. Check if the green light flashes regularly before entering win98 / 2k / xp. Please check whether the DVI cable is connected properly. If the problem is not resolved, 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. If it turns on, go to step 7, if not, check the yellow light (power 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. If it is off, remove the adapter card and the cable and try again. , 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 (please refer to the general installation and settings ) 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.
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 it. The network cable (or replacement), or plugging in the power of the receiving card (pay attention to the direction) can solve the problem.
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