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10 Ways For LED Display Screen Troubleshooting

LED Display

LED display screen failure is definitely to create problems for the industry. But problems are there to be solved, just how to solve them? Today’s powerful color small series on this article with you to understand the next 10 ways of LED display troubleshooting.

The LED Display Screen Does Not Work, Sending Card Green Light Flashing

CAUSE OF FAILURE​

  1. The LED display screen is not powered;
  2. The network cable is not connected well;
  3. The receiving card has no power supply or the power supply voltage is too low;
  4. The sending card is broken;  
  5. The signal transmission intermediate equipment(The function card, the optical fiber transceiver box and etc.) is with  connection problem;

TROUBLESHOOTING

  1. Check the power supply of the LED display screen body is normal or not;
  2. Check connection of the network cable or re-connect it;
  3. Ensure that the DC output of the power supply is 5-5.2 v;
  4. Replace the sending card; 
  5. Check the connection is ok or not, or, change the function card or change the optical transceiver box;

The LED Display Screen Does Not Work And The Green Light Of The Sending Card Does Not Flash

CAUSE OF FAILURE​

  1. Dvi or HDMI cable not connected;
  2. The copy or extend mode is not set in the Graphics Card Control Panel;
  3. The software selected to turn off the LED big screen power;
  4. The sending card is not inserted in the right place or the sending card has problems;

TROUBLESHOOTING

  1. Check the DVI connector;
  2. Reset the copy mode;
  3. Software select to turn on the LED big screen power;
  4. Re-plug the sending Card or replace the sending card;

Prompt "Big Screen System Not Found" At Startup

CAUSE OF FAILURE​

  1. The serial or USB cable is not connected with the sending card;
  2. Computer Com port or USB port not work;
  3. serial cable or USB cable is with problem;
  4. The sending card is broken;
  5. Does not have a USB drive installed;

TROUBLESHOOTING

  1. Confirm and connect the serial port cable;
  2. Replacement of computer;
  3. Change the serial port cable;
  4. Replace the sending card;
  5. Install a new version of the software or a separate USB driver

The Strip Of The Same Height As The Light Board Is Not Shown Or Part Of It Is Not Shown Or Is Not Colored

CAUSE OF FAILURE​

  1. Flat or DVI wire is suitable for bad connection or disconnection of submarine series;
  2. The interface display panel has problems with the former output or the latter input.

TROUBLESHOOTING

  1. Re-insert or replace the wiring;
  2. First determine which display module is faulty and then replace it for repair

Part Of The Module(3-6 blocks) Do Not Display

CAUSE OF FAILURE​

  1. Power supply protected and shut down or damaged;
  2. Bad connection with AC power cable

TROUBLESHOOTING

  1. Check and confirm the power supply is normal;
  2. reconnect the power cable or replace it.

The Whole LED Display Cabinet Is Not Displaying

CAUSE OF FAILURE​

  1. 110v/220v power supply wire not connected;
  2. Problems with network cable transmission;
  3. The receiving card is damaged;
  4. Hub card are misaligned

TROUBLESHOOTING

  1. Check the power supply wire;
  2. Make sure to replace the cable;
  3. Replace the receiving card;
  4. Re-plug the Hub card;

The Whole Screen Random Point, Picture And Shadow Movable

CAUSE OF FAILURE​

  1. The driver loader is incorrect;
  2. Cable between computer and LED display screen is too long or of poor quality;
  3. The sending card is broken;

TROUBLESHOOTING

  1. Reloading the receiving card file;
  2. Reduce the length of the wire or replace it;
  3. Replace the sending card.

The Whole LED Screen Show The Same Content In Each Unit

CAUSE OF FAILURE​

No LED screen connection file was sent

TROUBLESHOOTING

Re-send LED screen link file, and when sent, the network cable connected to the computer is inserted in the sending card near the indicator light output

The Brightness Of The LED screen Is Very Low, And The Image Is Not Clear.

CAUSE OF FAILURE​

  1. The sending Card Program made an error;
  2. The function card is not set correctly.

TROUBLESHOOTING

  1. Restore the sending card default settings and save;
  2. Set The minimum brightness value of the display monitor to be over 80;

Full Screen Motion or Ghosting

CAUSE OF FAILURE​

  1. Check the communication line between the computer and the big screen;
  2. Check the DVI wires of the multimedia card and the sending card;
  3. The sending card is broken.

TROUBLESHOOTING

  1. Re-insert or replace communication lines;
  2. DVI Cable is plugged and reinforced;
  3. Replace the sending card.

Understanding the top 10 tips for LED display screen common failures and emergency solutions, do not worry too much about the LED display screen temporary failure, because you can completely solve it by yourself.

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