Step 1: Check whether the graphics card settings section is set properly.

Step 2: Check the basic connections of the system, such as whether the DVI cable and network cable socket are correct, the connection between the main control card and the PCI socket of the computer, the serial cable connection, etc.

Step 3: Check whether the computer and LED power supply system meet the usage requirements. When the power supply of the LED display screen is insufficient, the screen will flicker when the display is close to white (high power consumption). A suitable power supply should be prepared according to the power supply requirements of the box.

Step 4: Check whether the green light of the sending card flashes regularly. If it flashes, go to step 6. If it does not flash, restart. Before entering win98/2k/xp, check whether the green light flashes regularly. 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 replace them respectively and repeat step 3.

Step 5: Please set up according to the software instructions or reinstall it before setting up 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 synchronously with the green light of the sending card. If it flashes, go to step 8 and check whether the red light (power) is on. If it is on, go to step 7. If it is not on, check the yellow light (power). Protection) is on. If not, check whether the power supply is reversely connected 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, remove the adapter card and cable and try again. If the problem is not solved, the receiving card is faulty. , replace the receiving card and repeat step 6.

Step 7: Check whether the network cable is well connected or too long (standard Category 5e network cable must be used, the longest distance of the network cable without repeater is less than 100 meters), check whether the network cable is made according to the standard (please refer to System Installation and Settings ), if the problem is not solved, the receiving card is faulty, replace the receiving card, and repeat step 6.

Step 8: Check whether the large screen power light is on. If not, go to step 7 and check whether the adapter card interface definition line matches the unit board.

Notice:

After most of the screens are connected, there may be no picture or blurry screen in some boxes. 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 unplug and plug the network cable again ( Or replace it), or plug in the receiving card power (pay attention to the direction) can solve the problem.