How many possibilities are there for the 7 segment LED display screen market that is competing among the strong players? How will interested friends pay attention? How to view device products?
In the scorching summer, the girls who have contributed the most to the installation of LED display screens in power games have added a lot of vitality. It aroused everyone's fun and excitement. Outdoor LED display screens are also a familiar display device.
The LED display screen itself is unobstructed. The external sunlight is too strong, and some parts of your display screen are too bright. Your indoor light can easily damage the screen and also cause some defective products. Therefore, when selecting indoor LED display screens, the following points should be noted: 1. LED display screen body and set-top box. The main body and casing of the display screen should be well grounded, with a grounding resistance of less than 3 ohms, to timely discharge large currents caused by lightning; The display screen may be subjected to strong electrical and magnetic attacks caused by lightning.
Label style label products have higher quality. Taking a 4-unit board as an example, if the LCD splicing wall of any LCD splicing screen is scratched, you should follow step 6 to check. If the power indicator light is off, you should check if there is any conflict or damage to the LCD splicing wall, or if it is an overall problem. Firstly, check whether the connection between the LCD screen and the LCD display screen matches. If the power indicator light is on normally, it may be due to insufficient backlight intensity on the display screen. Check if the LCD display screen of the set-top box on the display screen is working properly. After testing for a few minutes, this fault occurred.
The latest serial port SPI interface for WSATA-3B, WSATA-5, GU transmission is not displayed on a black screen, or the display of a certain smart packaging box is not lit on a black screen, or the power supply is missing or there is no signal output from the power supply.
Check if the power input and signal line of the display are connected; Check if there are any issues with the network cable. It is necessary to check if the network cable is damaged or if the software electronic cable is damaged.
Check if the network cable is damaged or if the software electronic cable is connected normally; Check if there is a problem with the network cable. If the network cable is replaced, it is necessary to use the correct method to check and check if the network cable is damaged or if the software electronic cable connection is good.
Check if the network cable is loose or causing interference with the network cable. Check if the network cable is damaged or connected properly, and if there is oxidation.
Check if the network cable is blown or loose, check if the host is connected properly, and if the connection is loose.
After the light is blown or interfered with to achieve the function of human care, it cannot automatically enter the system, conduct on-site inspections, access other relevant information, and verify that there are no issues for inspection.
Check whether the power indicator of the host is on, the indicator is flashing, the indicator is normal, and the data transmission fails.
What is the reason for this situation? Can you introduce it to everyone 1. Due to damage to the host power supply, it is not possible to provide external power, so even in this case, maintenance is not necessary.