Precautions for the use of the display and daily maintenance tips
①Precautions for turn on and shut down the screen：
1. Turn on the screen: first turn on the control computer to make it run normally, then turn on the large LED display screen;
2. Turn off the screen: first turn off the power of screen, turn off the control software, and then turn off the computer correctly; (first turn off the computer without turning off the display screen, it will cause the screen to appear bright spots, burn the lamp, and have serious consequences)
3. The interval of switching screens should be greater than 5 minutes;
4. Avoid turning on the screen in the state of full white screen, because it is the maximum power state at this time, and its impact current to the entire power distribution system is the largest.
② Power supply considerations：
1. The LED module is powered by DC +5V (working voltage: 4.2~5.2V), AC power is prohibited; the positive and negative poles of the power terminals are strictly prohibited to be reversed (note: once reversed, the product will be burnt out and even cause serious fire)
2. The power supply voltage of the LED display: 220V±10%, frequency: 50HZ±5%;
3. Safe and reliable ground contact, reliable isolation between the ground wire and the neutral wire, and stay away from high-power standby when connecting to the power source;
4. If abnormalities such as short circuit, tripping, wire burning, smoke, etc. are found, the power test should not be repeated, and the problem should be found in time;
5. Keep the power supply stable, and do grounding protection to avoid lightning strikes. Do not use it under severe natural conditions, especially strong lightning weather;
6. The large screen power supply must be supplied step by step, because the maximum power state of the entire screen will have an impact on 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, power cord heating, LED light damage, and affect the life of the display screen. It is recommended to play dynamic videos;
8. During the use of LED display products, the power supply cannot be turned on and off continuously, and there should be at least 1 minute between operations;
9. Non-professionals are forbidden to touch the internal wiring of the large screen of the LED display to avoid electric shock or damage to the wiring
③ Cleaning considerations：
1. Regular cleaning and maintenance: The LED display screen will be used for a long time, and more dust and rain will accumulate on the screen. This needs to be cleaned regularly and in time to prevent it from affecting the viewing effect;
2. To clean the surface of the module, please use a soft brush and gently wipe it. It is forbidden to use any liquid substance to clean the surface of the LED module, otherwise the LED lamp beads may be damaged;
3. Wipe correctly: The surface of the large LED display screen can be wiped with alcohol, or use a brush or vacuum cleaner to remove dust, not directly with a wet cloth.
④ Moisture-proof and storage requirements：
1. Storage temperature requirements: ambient temperature -40℃≤t≤60℃. After the package is opened, LED products must be stored in an environment with a temperature of <30℃ and a humidity of <60%;
2. According to the environmental conditions of the display screen and the control part, avoid insect bites, and put anti-rat medicine if necessary;
3. The LED display cannot be turned off for a long time. In a high-humidity environment, if the screen has not been used for more than 3 days, the pre-hot spot lighting method should be used each time the screen is turned on: 30%-50% brightness is preheated first 4-8 hours, then adjust to normal brightness (80%-100%) to light up the screen, so as to remove moisture, so that there is no abnormality in use; if the screen has not been used for more than 7 days, light up the screen every time The pre-hot spot lighting method is required: 30%-50% brightness is preheated for more than 12 hours, and then adjusted to normal brightness (80%-100%) to light up the screen, so as to remove moisture for use during use No abnormality.
The large LED screen needs to be checked regularly to see if it is working properly, and the damaged circuit should be repaired or replaced in time. The main control computer and other related equipment should be placed in an air-conditioned and dusty room to ensure ventilation and heat dissipation of the computer and stable operation. Non-professionals are forbidden to touch the internal wiring of the screen base to avoid electric shock or damage to the wiring. If there is a problem, you should ask a professional to repair it.
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Mr Wang
Alice Yang
