It is widely used wholesale led display Taiyuan, Taiyuan satellite monitoring large supply led display, small to watch VCD, it can be said in modern society, it's going nowhere, its structure is generally circular base plus body With the continuous development of color display technology, there are some other shapes monitor, but not much use. As a regular access to computers for people who want to monitor it must be his long face, everyone will have this feeling, when a long time to see the object, the eyes will feel especially tired, monitors, too, because of It is through a series of circuit design to produce an image, so it will definitely produce radiation, the greater the damage to the human eye. LDX advertising display: black and white black and white phenomenon occurs, said backlight to work, first determine whether the board is working properly, press the power switch to see whether the response indicator Taiyuan led display customized, if the indicator can change color, indicate the motherboard to work properly. 1, the signal output to check the motherboard cable screen if there is bad (or can replace the cable screen); 2, check the motherboard each operating point voltage is normal, especially the screen supply voltage; 3, check on-line with an oscilloscope Field and clock signals (from input to output); 4, put on board to write the program Universal test machine, such as no response or no bright lights, indicating that the motherboard is not working properly. 1) Check the motherboard voltage of each operating point, pay attention to the voltage of EPROM (about 4.8V), the reset voltage (high or low, depending on the model), CPU voltage, such as a power short circuit, short circuit to carefully look position, there will be a short circuit copper PCB board possible; 2) Find CPU and the motherboard of the foot contact is good; 3) Check the motherboard chipset and CPU is working, is available from the oscilloscope to measure the crystal oscillator; 4) Replace the CPU when necessary or re-programming the CPU. Taiyuan led display Supply | LDX Advertising | Taiyuan, Shanxi led display provided by DS Hin Culture Media Limited. DS Shanxi Xuan Culture Media Co. (www.sxdxzs.com/) is a leader in Taiyuan, advertising services, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. In LDX advertising leadership with the staff warmly welcome all inquiries negotiations to create LDX advertising a better future.