LED display troubleshooting method

During the use of LED display equipment, it is inevitable that sometimes it will encounter malfunctions. Today, we will introduce how to distinguish and judge the fault diagnosis method of LED display.



Step 1: Check whether the graphics card settings are set up properly. The setting method is in the electronic file of the CD as needed, please refer to it.



Step 2: Check the basic connection of the system, such as the DVI cable, whether the network cable socket is correct, the connection between the main control card and the computer PCI plug, the serial cable connection, etc., the connection method has been illustrated, please carefully refer to the reference



Step 3: Check whether the computer and LED power supply system meet the usage requirements. When the power supply of the LED screen is insufficient, when the display is close to white (high power consumption), it will cause the screen to flicker. Prepare a suitable power supply according to the power demand of the cabinet.



Step 4: Check whether the green light of the sending card flickers regularly. If flickering, go to step 6. If it does not flicker, restart, and check whether the green light flickers regularly before entering win98/2k/xp. If flickering, go to the second step. Step operation, please check whether the DVI cable connection is well connected. If the problem is not resolved because one of the sending card, graphics card and DV cable I is faulty, please replace it separately and repeat step 3.



Step 5: Please follow the software instructions to set or reinstall and then set again, until the green LED Light module of the sending card flashes, otherwise repeat step 3.



Step 6: Check whether the green LED Light module (data light) of the receiving card flashes synchronously 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’s on, go to step 7, if it doesn’t light, check the yellow Whether the LED Light module (power protection) is on, if it is not on, check whether the power supply is connected reversely or if the power supply has no output. If it is on, check whether the power supply voltage is 5V. If it is turned off, remove the adapter card and cable and try again. If the problem is not solved, If 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 (a standard super-category 5 network cable must be used, and the longest distance of the network cable without repeater is less than 100 meters), and check whether the network cable is made according to the standard (please refer to the system Installation and setting), if the problem is not resolved, the receiving card is faulty, replace the receiving card, and repeat step 6.



Step 8: Check whether the power light of the large screen is on. If not, go to step 7, and 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 connected firmly, or the power of the receiving card is not connected, the signal does not pass through, so please plug it in again. The network cable (or exchange), or plug in the power supply of the receiving card (pay attention to the direction) can solve the problem.

is a modern About Us widely used in dob led pcb industry. It also enhances the quality ac led modules value of the products.
Demo Photoelectric Technology (Wuxi) Co., Ltd. strives to be the acknowledged global leader and preferred partner in helping our clients succeed in the world’s rapidly evolving financial markets.
People are more likely to listen to an expert than just anyone off the street. So, while pack mentality is important, having a relevant expert speak to the effectiveness of a brand's product as Demo is essential to converting new consumers as well.
led light engine module About Us with led light engine are used extensively in led pcb board.
About Us is attracting a great positive feedback from the customers. And many of our clients are fully satisfied with it.