With the widespread use of LED displays, there are increasing usage problems. The influence of various objective and subjective factors has caused problems such as reduced lifespan of LED displays and functional failures. In order to better use LED display related products, we have made some feasible summaries on related usage precautions and daily maintenance.
一, Precautions for use environment
1. Working environment temperature range -20℃≤t≤50℃, working environment humidity range 10% to 90%RH;
2. Avoid use or storage in high temperature, high humidity, high acid/alkali/salt environments;
3. Keep away from flammable items, gases and dust;
4. Avoid strong collisions and sharp objects during transportation;
5. When the ambient temperature is too high or the heat dissipation conditions are not good, be careful not to use the screen with the screen open for a long time;
6. When an LED display with a humidity exceeding the specified humidity is powered on, it will cause corrosion of parts and even short circuit, causing permanent damage;
7. It is strictly forbidden to allow water, iron powder and other metal objects that are easily conductive to enter the screen. The LED display screen should be placed in a low-dust environment as much as possible. Large dust will affect the display effect, and too much dust will cause damage to the circuit. If water enters for any reason, please cut off the power immediately and wait until all components inside the screen are dry before use.
二, Precautions when switching the screen
1. Turn on the screen: first turn on the control computer so that it can operate normally, and then turn on the large LED display screen;
2. Turn off the screen: first turn off the power of the LED screen, turn off the control software, and then turn off the computer correctly; (turning off the computer first without turning off the display will cause highlights to appear on the screen and burn out the lamp, with serious consequences)
3. The interval between switching the screen on and off should be greater than 5 minutes;
4. Avoid opening the screen in a full white screen state, because this is the maximum power state, which has the largest impact current on the entire power distribution system;
三,Precautions for power supply
1. The LED module is powered by DC +5V (operating voltage: 4.2-5.2V). It is prohibited to use AC power supply; it is strictly forbidden to connect the positive and negative poles of the power terminals in reverse (note: once reversed, the product will be burned or even cause a serious fire) ;
2. Power supply voltage of LED display: 220V±10% Frequency: 50HZ±5%;
3. Safe and reliable ground contact, reliable isolation between the ground wire and the neutral wire, and the power supply should be kept away from high-power electrical equipment;
4. If any abnormalities such as short circuit, tripping, wire burning, smoke, etc. are found, power on and test should not be repeated and the problem should be found in time.
5. Keep the power supply stable and provide grounding protection to avoid lightning strikes. Do not use it under harsh natural conditions, especially strong lightning weather;
6. The power supply for the large screen 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 highest brightness all-white picture for more than half an hour to avoid excessive current, heating of the power cord, damage to the LED lamp, and affecting the service life of the display screen. It is recommended to mainly play dynamic videos;
8. During the use of LED display products, the power cannot be turned on and off continuously. There should be at least 1 minute between operations;
9. Non-professionals are prohibited from touching the internal circuits of the large LED display screen to avoid electric shock or damage to the circuits. If there is a problem, please ask professionals to repair it.
四, Cleaning precautions
1. Regular cleaning and maintenance: The large LED full-color display screen is exposed to wind, sun, and rain in the outdoor environment for a long time. Even if the indoor LED display screen is used for a long time, more dust and traces of rain erosion will accumulate on the screen. , which requires regular and timely cleaning to prevent it from affecting the viewing effect.
2. If you want to clean the surface of the module, please use a soft-bristled brush and brush gently. It is prohibited 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 dusted with a brush or vacuum cleaner. It cannot be wiped directly with a wet cloth.
五,Moisture-proof and storage requirements
1. Storage temperature requirements: ambient temperature -40℃≤t≤60℃. After opening the package, LED products must be stored in an environment with a temperature <30℃ and a humidity <60%;
2. According to the environmental conditions of the display body and control part, avoid insect bites and place anti-rodent poison 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, a preheating lighting method must be used every time the screen is lit: 30%-50% of the brightness must be preheated first. 4-8 hours, then adjust to normal brightness (80%-100%) to light up the screen to remove moisture so that there is no abnormality during use; if the screen has not been used for more than 7 days, light up the screen each time It is necessary to use the preheating lighting method: 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 eliminate moisture and facilitate the use. No abnormality.
Proper maintenance of the full-color LED large screen plays a vital role in extending the service life of the display and ensuring the normal operation of the LED large screen. If the LED display screen is faulty during the warranty period, try to keep in close contact with the manufacturer's after-sales personnel and carry out repairs under reasonable guidance. To sum up, LED large screens are semiconductor display products that emit light and heat. Although their theoretical life value can reach 100,000 hours, they must have good quality and be built in correct maintenance and a reasonable use environment to achieve this. .