Early outdoor LED display, due to the structure is simple, low resolution, radiation harassment project difficulties and no highlights, with the outdoor LED display technology continues to develop, the structure tends to be complex, increasing volume, the number of power Increased direct increase in the length of the connection lines and data lines inside the display, resulting in increased power of the radiation source.
In addition, due to the increase in resolution, the module's clock frequency is also getting higher and higher, but also easy to exceed one of the reasons for radiation. And in order to meet the consistency requirements of the product, the product in the design of EMC need to retain enough margin to avoid the consistency of the electrical performance does not meet the face of these challenges in the form of business before the test should be the corresponding difficulties Point to do in the third party testing agencies thoroughly test, reasonable planning, in order to successfully through the test.
In the certificate retention phase, the need for consistency management of the product to strengthen management, consistency control In addition to the key parts of the consistency of control and product electrical performance consistency of the control, the two parts to check any one of the abnormal or inconsistent place, and Regulatory authorities found or complaints, will lead to 3 C suspension or even revocation.
P16 advertising screen itself, many key parts, in the physical check, the need to check the nameplate, structure, key parts and other forms of consistency with the report. There are some key parts such as power lines, switching power supply itself may be 3C certification, the enterprise needs from time to time to verify the validity of the certificate, if the certificate expires or fails, you need the supplier or the enterprise itself to the designated agency Conduct a validation test to meet the conformity of the product gamma. In view of these, in the formal test phase, the choice of key parts, you can report the optional materials to ensure that the certification within a certain period of time will not be due to changes in key parts affect the validity of the certificate.