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Common failure LED display and elimination method

Date: 2015-07-21
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  LED display has been applied more and more widely, as long as you can often see it outside the home.It gradually become a new platform of outdoor media.In LED display for people's life add color, the maintenance staff to grasp some basic measures for the emergency treatment of fault is a must.Below small make up with everyone together to simple analysis under all kinds of failure and the elimination method:
  
  One, the screen does not work, send a card the green light flashing made retractable ()
  
  1. The cause of the problem:
  
  1) the screen without power supply;
  
  2) the cable not connected well;
  
  3) receiving card without power supply or power supply voltage is too low;
  
  4) send card is bad;
  
  Among 5) signal transmission equipment connection or defective (such as: function, fiber optic transceiver box).
  
  2. The troubleshooting methods:
  
  1) check the screen power supply is normal;
  
  2) check the reconnect the cables;
  
  3) to ensure that the output power dc power supply in 5-5.2 - V;
  
  4) replacement send card;
  
  5) check the connection or replace function card (optical transceiver box);
  
  Second, the screen does not work, send a card the green light is not flashing
  
  1. The cause of the problem:
  
  1) DVI or HDMI line not connected;
  
  2) graphics card copy or extension mode is not set in the control panel;
  
  3) software chose shut a bigger power;
  
  4) send card not insert in place or send card has a problem;
  
  2. The troubleshooting methods:
  
  1) check the DVI line joint;
  
  2) to set up replication mode;
  
  3) software choose open domestic power supply;
  
  4) send CARDS or replacement card;
  
  Three, startup prompt "big screen system not found"
  
  1. The cause of the problem:
  
  1) serial port or USB cable and send card no connection;
  
  2) computer COM or bad USB port;
  
  3) serial port or USB line is bad;
  
  4) send card is bad;
  
  5) didn't install the USB driver
  
  2. The troubleshooting methods:
  
  1) identify and connect a serial port line;
  
  2) change the computer;
  
  3) replace the serial port;
  
  4) replacement send card;
  
  5) to install the new software or install the USB driver alone
  
  Four, with the contour of the strip lamp plate showing, or part is not lack of color
  
  1. The cause of the problem:
  
  1) flat ribbon cable or DVI line (series) for submarine bad contact or disconnected;
  
  2) junction display lamp plate the former input output, or the latter has a problem
  
  2. The troubleshooting methods:
  
  1) insert or replace the wiring;
  
  2) determine which block display module is faulty maintenance and replacement
  
  Part five, the module (3-6) don't show
  
  1. The cause of the problem:
  
  1) power protection or damage;
  
  2) AC power line contact is not good
  
  2. The troubleshooting methods:
  
  1) detection, power supply is normal;
  
  2) to connect the power cord
  
  Sixth, the whole body don't show
  
  1. The cause of the problem:
  
  1) the 220 v power supply line not connected;
  
  2) there is something wrong with the Internet transmission;
  
  3) receiving card is damaged;
  
  4) the HUB board dislocation
  
  2. The troubleshooting methods:
  
  1) check the power supply line;
  
  2) confirm the replacement cable;
  
  3) change the receiving card;
  
  4) to insert the HUB
  
  Seven, spend the whole screen, figure moving shadow buttons
  
  1. The cause of the problem:
  
  1) drive loader is wrong;
  
  2) computer and screen cable is too long or quality is bad.
  
  3) send card is bad
  
  2. The troubleshooting methods:
  
  1) operating load again receive Calvin;
  
  2) reduce short_net line length or replacement;
  
  3) change the send CARDS
  
  Eight, the entire screen show the same content in each display unit
  
  1. The cause of the problem:
  
  No send display connection file
  
  2. The troubleshooting methods:
  
  Resetting send screen file, and when sent to connect the computer network cable plugged in sending card outlet near the lamp
  
  Nine, display brightness is very low and display the image blur.
  
  1. The cause of the problem:
  
  1) send card application error;
  
  2) function card set wrong
  
  2. The troubleshooting methods:
  
  1) resume sending card defaults and save;
  
  2) set the display monitor minimum brightness value of more than 80;
  
  Ten, shaking the whole screen picture or double
  
  1. The cause of the problem:
  
  1) check the communication between computer and line;
  
  2) check the multimedia CARDS and send CARDS DVI line;
  
  3) send card is bad.
  
  2. The troubleshooting methods:
  
  1) plug communication line weight or replacement;
  
  2) insert the DVI line reinforcement;
  
  3) change the send CARDS.
  
  Understand the common malfunction and emergency solutions LED display, need not worry too much about display temporary failure, because you can solve completely.Daily protection work, can prolong the service life of LED display, also can reduce the maintenance cost due to the fault.
Copyright:2005 - 2015 ShenZhen Meiyad Optoelectronics Co. Ltd
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