LED display

the high brightness, rich colors and all-weather operations, except the higher price.
(2) From the perspective of application, products satisfying customers’ demand exist. Dual-color LED Display Screen is not good at characters display or supply rich colors, however, it’s superior in low price and steady performance.
(3) The orientation and viewing distance of outdoor LED Screen are crucial to the price. The farther of the viewing distance, the bigger and brighter of the pixel. Compared with the screen oriented Southwest, the screen oriented Northeast is much more cheaper.
(4) Both LED Display Screens and the combination between screens and architectures must be completely waterproof, moreover some good drainage measure must be provided as soon as the seeping occurs
(5) Lightning protection must be installed in LED Display Screen and architectures, and the ground connection between the main part and the shell of LED Screens must be good, meanwhile, the ground resistance must be less than 3Ω, to release the excessive electricity resulted from thunder and lightning
(6) Set up ventilation installation to lower the temperature in screens to -10～40, or install a cooling fan on the top at the back of one screen to release heat.
(7) Select industrial-grade integrated circuit, of which the operating temperature is between -40～80, to protect LED Display Screen from freezing.
　　 D.Common problems and solutions
　　 1．No display
a.Check the power-supply of LED Screens, and test that whether the electrical appliances connected with the switch is electrically live by test pencil or multimeter, or whether there is something wrong with the switch or the circuit.
b. Check whether the computer synchronously with LED Screen is in the dormancy situation at first; If it is, then open “the control panel”, click “power-supply management”, choose “never” from the menu “system waiting and turn off the monitor”, so the dormancy will never occur again, and the LED Screen could work normally; if not, try to open the cabinet to check whether the control card and communication cable are connected well or not.
2.Incomplete document or display in the wrong location
c.Check whether the arrange of software and the parameter of the size of LED Screen is identified with what engineers design. If the parameter is unknown, try to count the pixel dots on the length and the width, after make sure the size of the screen, check what’s the difference among display areas, then back to adjust the location on the computer until it’s correct.
d.If there is incomplete display, please check whether the size of documents is identified with that of the screen.
e.Open the case of the LED Screen to check whether the control card is short circuited.
3.The communication is disrupted.
f.Check the parameter revealed in software is the same as the one provided by engineers.
g.Check whether the serial port is firm or the communication cable is broken or not.
2.Check whether the earth wire connected with the computer or the communication cable is loose. If staffs could not judge what is the matter or they are not familiar with computers, please do not disassemble cases, but contact us.