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LED display flashing cause analysis and solution
However, the LED display is not a big problem, but it is a headache. It not only affects the quality of the playback picture, but also affects the user's mood. What is the cause of the LED display flickering? Is there any good solution?
First, the LED display flashes the reason
(1) The driver loader is incorrect.
(2) The network cable between the computer and the screen is too long or the network cable is faulty.
(3) The sending card is broken.
(4) The control card is broken. Check that the small light on the control card is not lit. If it is not lit, it will be broken.
(5) Whether the connection line between the power supply and the control card is short-circuited.
(6) The output voltage of the power supply is unstable, and the power supply with the control card should not carry too many boards.
Second, the led display flashes corresponding solution
(1) If it is the whole screen, the picture is twisted, it is generally the driver loading program is wrong, re-check the driver loading program, it is not possible to uninstall and reload.
(2) Another possibility is that the sending card is broken. At this time, the sending card needs to be replaced.
(3) If it is irregular flashing, it is usually a system frequency problem. Replacing the system, or adjusting the setting parameters, can basically be solved! If it is a flashing state of the stars, there may be a problem with the graphics card driver, or it may be a problem with the resolution of the sending card. Another possibility is the power supply problem (insufficient power supply, information clutter, electromagnetic interference). When designing the PCB, consider the wire diameter of the power supply and signal trace, and the PCB production process. There are also some improvements in adding more capacitors to the module.
(4) If the text is flickering (there are irregular white edges around the text, irregular flashing, and disappear after the text disappears), this is a problem with the graphics card setting. In the display properties, cancel "Show hidden under the menu", "Edge smoothing" The transition effect can solve such problems.
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