Full-color LED display failure are caused by a lot of improper installation, so the installation of full-color LED display in strict accordance with the steps to operate, especially when the first installation, this can reduce the error occurred, the following one Take a look at the full color LED display installation wiring method steps.
1. Check the supply voltage
Locate the DC positive and negative switching power supply, connect the 220V power cord to the switching power supply (confirm that the connection is correct, connect to the AC or NL terminal) and plug in the power supply. Will find a power supply will be a light, and then use a multimeter, DC file to measure the voltage between V + and V- to ensure that the voltage between 4.8V-5.1V, next to a knob, you can adjust the voltage of the Phillips screwdriver. In order to reduce the life of the screen to extend the life, in the case of low brightness requirements, you can adjust the voltage between 4.5V-4.8. After confirming the voltage is no problem, disconnect the power and continue assembling the other parts.
2. Connect the power supply
First turn off the power, connect the V + to the red line, and connect the black line to the control card and the LED unit board, and the black line to the control card and the power supply. The red line connects the control card to the + 5V and the cell board of the VCC. One power cord per unit board. When finished, check that the connection is correct.
3. Connect control and cell board
Use a good cable to connect. Attention direction, can not be reversed. Please note that the unit board 2 16PIN interface, one is the input (in), one is the output (out), close to the 74HC245 / 244 is the input, the control card connected to the input. Output is connected to the input of the next cell board.
4. Connect RJ45 cable (data cable)
Will be a good network cable to connect a computer's network card or send card network port, the other end of the control card, the rest of the control card to A-B, A-B form one by one connection.
In order to achieve the best compatibility, the production of straight lines generally use T568B standard. RJ45 crystal head pin sequence number should be observed in accordance with the following method: the RJ45 plug front (with copper needle side) toward their own, with a copper needle toward the top, connecting the cable to the bottom, from left to right will be 8 copper The needle is numbered 1 to 8:
① white - orange, ② orange, ③ white - green, ④ blue, ⑤ white - blue, ⑥ green, ⑦ white - brown, ⑧ brown
5. Check the connection
Check whether the connection is correct again, the black line is connected to-V and GND. The red line is connected to + V and VCC + 5V.
Red line then L, blue line then N, yellow green line grounding
6. Detection
Turn on the 220V, open the downloaded software. Under normal circumstances, the power light is on, the control card is flashing and the screen is displayed. If it is not, check the connection. Or check for bug fixes. Set the parameters of the screen, send subtitles. Refer to the software instructions.