Precautions and daily maintenance tips for LED display

　　Like traditional electronic products, the large LED display screen needs not only to pay attention to methods, but also to carry out maintenance, so as to make the life of the large LED display screen longer. What problems should we pay attention to in daily use

　　Precautions for switch panel

　　1. Screen opening: first turn on the control computer so that it can operate normally, then turn on the large LED display screen;

　　2. Turn off the screen: first turn off the power supply of the LED screen, turn off the control software, and then turn off the computer correctly; (Turn off the computer first without turning off the display screen, which will cause high bright spots on the screen and burn out the lamp tubes, with serious consequences)

　　3. The time interval between opening and closing the screen shall be greater than 5 minutes;

　　4. Avoid opening the screen in the full white screen state, because this is the maximum power state, which has the maximum impact current on the entire distribution system.

　　Precautions for power supply

　　1. LED module is powered by DC+5V (working voltage: 4.2~5.2V), and AC power supply is prohibited; It is strictly forbidden to connect the positive and negative poles of the power terminal reversely (note: once connected reversely, the product will be burnt or even cause serious fire);

　　2. Power supply voltage of LED display screen: 220V ± 10% Frequency: 50HZ ± 5%;

　　3. Safe and reliable ground contact, reliable isolation between ground wire and neutral wire, and access to power far away from high-power standby;

　　4. In case of short circuit, tripping, burning, smoking and other abnormalities, power on test shall not be repeated, and problems shall be found in time;

　　5. Keep the power supply stable, and do a good job of grounding protection to avoid lightning strike. Do not use it in bad natural conditions, especially in strong lightning weather;

　　6. The power supply of the large screen must be supplied step by step, because the maximum power state of the whole screen will impact the entire power distribution system;

　　7. The LED display screen is not allowed to play the full white screen with the highest brightness for more than half an hour, so as to avoid excessive current, heating of the power line, damage of the LED lamp, and affect the service life of the display screen. It is recommended to play dynamic video mainly;

　　8. During the use of LED display products, it is not allowed to turn on or off the power continuously, and there should be at least 1 minute between the two operations;

　　9. Non professionals are not allowed to touch the internal circuit of the large LED display screen to avoid electric shock or damage to the circuit.

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