When using led display screens, it often fails to load. The reasons why the led display cannot be loaded can be analyzed from the following aspects.

1. Check whether the jumper cap is loose or falling off; if the jumper cap is not loose, make sure that the direction of the jumper cap is correct.

2. Check and confirm that the serial cable used to connect to the controller is a straight-through cable, not a crossover cable.

3. Check and confirm that the serial port cable is intact and there is no looseness or fall off at both ends.

4. Select the correct product model, correct transmission method, correct serial port number, correct serial transmission rate according to the led display control software and the control card you choose, and set it correctly according to the dial switch diagram provided in the software Control the address bits and serial transmission rate on the hardware of the system.

5. Make sure that the control system hardware has been powered on correctly.

6. If it still fails to load after the above inspection and calibration, please use a multimeter to measure whether the serial port of the connected computer or control system hardware is damaged. To confirm whether it should be returned to the computer manufacturer or the control system hardware for testing.

In short, the reason for the abnormal loading of the led display may be the product itself, or it may be caused by your improper operation during use. As long as you think carefully or ask the manufacturer, it is easy to find the source of the problem.

The necessary knowledge when buying small-pitch LED displays

1. Comprehensive consideration of point spacing, size and resolution

Dot pitch, size and resolution are several important factors when people buy small-pitch LED displays. In actual operation, it is not that the smaller the dot pitch and the higher the resolution, the better the actual application effect, but the comprehensive consideration of the screen size, application environment and other factors. The smaller the dot pitch of small-pitch LED display products, the higher the resolution and the higher the price. Users should fully consider their own application environment and program budget when purchasing products to avoid the dilemma of spending a lot of money but failing to achieve the expected results.

2. Fully consider the maintenance cost

When choosing small-pitch LED display products, users in the industry should consider not only procurement costs, but also high maintenance costs. In actual operation, the larger the screen size, the more complicated the maintenance process, and the maintenance cost will naturally increase accordingly. In addition, the power consumption of the small pitch is not easy to be underestimated, and the later operating costs of large-size and small-pitch LED displays are generally higher.

Three, signal transmission compatibility is very important

The indoor signal access of the small-pitch LED display has the requirements of diversification, large number, scattered locations, multi-signal display on the same screen, and centralized management. In actual operation, if the small-pitch LED display is to be used efficiently, the signal transmission equipment must not contempt. In the LED display market, not all small-pitch LED displays can meet the above requirements. When purchasing products, do not pay attention to the resolution of the product, and fully consider whether the existing signal equipment supports the corresponding video signal. . The small-pitch LED display attracts users with its ultra-high-definition display pictures and delicate display effects.