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First, the display does not work, the sending card green light flashes (made into retractable)
1. Reason for failure:
1) The screen body has no power supply;
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 device is connected or has a fault (such as: function card, fiber transceiver box);
2. Troubleshooting method:
1) Check that the screen is powered normally;
2) Check and reconnect the network cable;
3) Ensure that the power supply DC output is powered at 5-5.2V;
4) Replace the sending card;
5) Check the connection or replace the function card (fiber transceiver box);
Second, the display does not work, the green card of the sending card does not flash. 1. Cause of failure:
1) DVI or HDMI cable is not connected;
2) The copy or expansion mode in the graphics control panel is not set;
3) The software chooses to turn off the large screen power supply;
4) The sending card is not inserted or there is a problem with the sending card;
2. Troubleshooting method:
1) Check the DVI line connector;
2) Reset the copy mode;
3) The software chooses to turn on the large screen power supply;
4) Re-insert the sending card or replace the sending card;
Third, when prompted, "large screen system is not found"
1. Reason for failure:
1) The serial cable or USB cable is not connected to the sending card;
2) The computer COM or USB port is bad;
3) The serial cable or USB cable is broken;
4) The sending card is broken;
5) No USB driver installed 2. Troubleshooting method:
1) Confirm and connect the serial cable;
2) Replace the computer;
3) Replace the serial cable;
4) Replace the sending card;
5) Install the new version of the software or install the USB driver separately. 4. The strips with the same height as the light board are not displayed or partially not displayed, and the color is missing. 1. The cause of the malfunction:
1) The flat cable or DVI cable (for submarine series) is not well contacted or disconnected;
2) There is a problem with the output of the former or the input of the latter at the junction. 2. Troubleshooting method:
1) Re-insert or replace the cable;
2) First determine which display module is faulty and then replace the repair. 5. Some modules (3-6) are not displayed. 1. Cause of failure:
1) Power protection or damage;
2) AC power line contact is not good 2. Troubleshooting method:
1) Check to confirm that the power supply is normal;
2) Reconnect the power cord. 6. The entire cabinet is not displayed. 1. Cause of failure:
1) The 220V power supply line is not connected;
2) There is a problem with the transmission of the network cable;
3) The receiving card is damaged;
4) The HUB board is inserted into the wrong position. 2. Troubleshooting method:
1) Check the power supply line;
2) Confirm the replacement of the network cable;
3) Replace the receiving card;
4) Reinsert HUB
Seven, the whole screen spends, maps and shadows move 1. The cause of the failure:
1) The driver loader is incorrect;
2) The network cable of the computer and screen is too long or of poor quality;
3) Sending card is bad 2. Troubleshooting method:
1) Re-load the receiving card file;
2) Shorten the length of the cable or replace it;
3) Replace the sending card. 8. The entire display shows the same content for each display unit. 1. Cause of failure:
No display connection file is sent. 2. Troubleshooting method:
Reset the send screen file, and connect the computer's network cable to the output port of the send card near the indicator light when sending. 9. The display brightness is very low and the display image is blurred.
1. Reason for failure:
1) Error in sending card program;
2) The function card is set incorrectly. 2. Troubleshooting method:
1) Restore the default settings of the sending card and save it;
2) Set the display monitor to have a minimum brightness value of 80 or higher;
Ten, the whole screen screen shaking or ghosting 1. The cause of the failure:
1) Check the communication line between the computer and the large screen;
2) Check the DVI line of the multimedia card and the sending card;
3) The sending card is broken.
2. Troubleshooting method:
1) Reinsert or replace the communication line;
2) Push the DVI line into the reinforcement;
3) Replace the sending card.
Text / Shenzhen LED base
LED display common faults and treatment methods
The increasing demand for outdoor digital advertising applications has led to the rapid expansion of the market for LED display applications and the increasing popularity of user groups. How to deal with some common faults in daily applications has become an urgent problem for industry users. This article will help you to organize the common problems in the daily application of LED display and simple processing methods.