Friends who are new to LED displays often look confused at various wires? Just like when a novice learns photography, he always asks "How to quickly master composition skills", understanding the interface position is the basic skill of playing with LED screens. Today, let’s talk about this seemingly simple but hidden mystery question - where are those mysterious interfaces hidden?

​​Why do you need to find the right place for the interface? ​ ​
These inconspicuous small holes are the "energy entrance" of the display screen. Just like if the charging port of the mobile phone is broken and the charging cannot be charged, a problem with the LED screen interface will cause the signal to be lost and the screen will flicker. Now the interfaces of high-end LED screens have evolved to automatically identify signal sources. The interfaces of outdoor advertising screens can even work normally on heavy rainy days, and the protection level is directly increased to IP65 level.

​​Three common hiding positions​​

1. ​​Side buckle area of ​​box​ ​: Most standard boxes are designed with hidden push-pull covers on the left and right sides, so you can see the neatly arranged interfaces when opened. I have a cold knowledge - some waterproof models have their own sealing rings, which can be waterproofed with bare hands
2. ​​Module splicing gap​ ​: Special products like transparent LED video walls are often hidden at the connections of adjacent modules. This design does not affect the transparency and is convenient for maintenance.
3. ​​Quick disassembly area​ ​: The interface of the rental screen is usually concentrated under the magnetic cover plate at the four corners of the box. The full set of interfaces can be exposed with a thumb. I heard that the latest box can complete the wiring of the entire screen in 30 seconds.

​​Must-understand interface type comparison table​​

​​The pit that novices often step on​​
Q: Will the screen burn if the interface is inserted in reverse?
A: Nowadays, regular manufacturers have anti-fire designs, but the reverse connection of the power interface may indeed damage the circuit. There is a real case - a large screen in a shopping mall caused one-third of the modules to be scrapped because the construction team connected the wrong line.

Q: What should I do if the outdoor screen interface is rusted?
Remember these three first aid methods:

• ​​Power off operation​ ​: Cut off the power supply first and then deal with it
• ​​Rust removal tips​ ​: Spray with precision electronic cleaner
• ​​Preventive measures​ ​: Check the elasticity of the sealing ring every month

​​Interface selection for different scenarios​​
Those who engage in outdoor advertising must choose an aviation plug with a waterproof cover, after all, it must withstand the sun and rain. ； When doing stage rental, you must use a quick disassembly interface, and it is best to be blindly inserted without any effort. ； The dedicated interface for stadiums is more durable and must be able to withstand the vibrations of the audience when cheering. To be honest, I have seen too many people use indoor interfaces outdoors, but they collectively failed before the rainy season was over.

​​Maintenance knowledge​​

1. Use cotton swabs to clean the dust on the interface regularly, and never poke it with metal objects.
2. Remember to cover the dust cap if you don't use it for a long time
3. When the signal is unstable, check the interface oxidation condition first and then change the wires.

Editor's opinion: Now I know why some display screens have not had any problems with them for ten years, right? The key is to deal with these details. Next time you see an LED screen, you might as well get closer to find its "energy entrance". Maybe you will find new discoveries!

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