How to wire the led display screen to be safer? _Full color led display manufacturer|Huaze Optoelectronics

Many failures of full-color led display are caused by improper installation. Therefore, you need to strictly follow the steps when installing full-color led display, especially when installing for the first time, which can reduce the occurrence of errors. Let's take a look at the wiring method steps when installing a full-color LED display. 1. Check the power supply voltage. Find out the DC positive and negative connections to the switching power supply, connect the 220V power cord to the switching power supply, (after confirming the connection is correct, connect it to the AC or NL terminal) and plug it in. You will find that a light on the power supply will turn on, and then use a multimeter to measure the voltage between V+ and V- in the DC gear to ensure that the voltage is between 4.8V and 5.1V. There is a knob next to it, and you can adjust the voltage with a Phillips screwdriver. In order to reduce the heating of the screen and prolong its life, the voltage can be adjusted to between 4.5V-4.8 when the brightness requirement is not high. After confirming that there is no problem with the voltage, disconnect the power supply and continue to assemble other parts. 2. Connect the power supply Turn off the power first, connect V+ to the red wire, V- to the black wire, respectively connect to the control card and the LED unit board, and connect the black wire to the GND of the control card and the power supply. The red wire connects the +5V of the control card and the VCC of the unit board. 1 power cord per unit board. After completion, please check whether the connection is correct. 3. Connect the control and the unit board. Use the prepared cable to connect. Pay attention to the direction and do not reverse the connection. Please note that there are two 16PIN interfaces on the unit board, one is input (in), one is output (out), and the one near the 74HC245/244 is input, which connects the control card to the input. The output is connected to the input of the next cell board. 4. Connect the RJ45 network cable (data cable). Connect one end of the prepared network cable to the computer's network port or sending card network port, and the other end to the control card. Connect the rest of the control cards one by one in the form of A-B and A-B. In order to achieve the best compatibility, the T568B standard is generally used when making a straight-through cable. The sequence numbers of the RJ45 crystal header pins should be observed as follows: turn the front of the RJ45 plug (the side with the copper pins) toward you, the end with the copper pins upwards, and the end of the connecting cable downwards, and 8 copper pins from left to right The needles are numbered in sequence from 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 and check whether the connection is correct , The black wire is connected to -V and GND. The red wire connects +V and VCC +5V. The red wire is connected to L, the blue wire is connected to N, and the yellow-green wire is grounded. 6. Detection Connect 220V and 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 normal, please check the connection. Or check error troubleshooting. Set the parameters of the full-color led display and send subtitles. Refer to the software instructions for details.