LED unit MILL tutor you LED unit board specifications calculation method: 1, LED unit board spacing secret: each pixel p5 led away to another cell plate between a pixel, each pixel can be a led light [eg: P10 (1R)], two led lights [such as: PH16 (2R)], three led lights [eg: P16 (2R1G)]; 2, LED unit board length and height calculation methods: point spacing × Points = length / height, such as: P16 Length = 16:00 × 1.6㎝ = 25.6㎝ height = 8:00 × 1.6㎝ 12.8㎝ P10 = length = 32 points × 1.0㎝ = 32㎝ height = 16:00 × 1.0㎝ = 16㎝ 3 LED Display Screen LED unit board using the number: total area ÷ ÷ unit cell plate length plate height = use the number of LED unit board as: 10 square feet of P16 outdoor color led display using LED unit board number is equal to: 10 m2 ÷ 0.256 ÷ 0.128 米 米 = 305.17678≈305 high Jinliang photoelectric Main led unit board led unit board wholesale line, led unit board to share the following problems occur and you are mainly divided into four points: 1, the entire board is not shining: Main because the unit is not connected to the power supply board or board within the line connection error led unit board, resulting in a difference of positive and negative circuits. 2, the board is not shining, transportation function properly: this is due to damage caused by the built-in circuit board can be 74HC138 4 feet and 5 feet caused by short circuit. 3, every three non-shiny: In 4953 the board is damaged. 4, interlaced shiny: to be able to analyze a circuit problem. ①: Check the cell plate Built 74HC245 and 74HC138 whether Weld. ②: use a multimeter to measure whether the 74HC138 1 pin voltage is about 2.5V, there will replace 74HC138 ③: measuring electricity transmission status lilies with ICA signals. led unit board line, high Jinliang photovoltaic (certified), led unit board provided by the Jinan High Jinliang Optoelectronics Technology Co., Ltd .. Jinan High Jinliang Optoelectronics Technology Co., Ltd. (www.zhkyled.com) is an industry leader in Jinan, Shandong, liquid crystal device, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. In high Jinliang photoelectric leadership with the staff warmly welcome all inquiries negotiations to create high Jinliang photoelectric a better future.