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Five LED display precautions and routine maintenance
Like traditional electronic products, to make the LED display life longer, not only need to pay attention to methods during use, but also need to maintain it. With the widespread use of LED display screens, the increasing use issues and various objective and subjective factors have caused problems such as reduced lifespan and malfunction of LED display screens. In order to make better use of LED display-related products, we have made some practical conclusions about the relevant usage precautions and routine maintenance.
First, the use of environmental considerations
1. Working environment temperature range -20 °C ≤ t ≤ 50 °C, 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 materials, gas and dust;
4. Avoid strong collision during transportation and avoid sharp objects collision;
5. When the ambient temperature is too high or the heat dissipation conditions are not good, care should be taken not to open the screen for a long time;
6. When the power of the LED display exceeding the specified humidity is applied, it may cause corrosion of parts and even short-circuit and cause permanent damage;
7. It is forbidden to enter water, iron powder and other easily conductive metals. The LED display should be placed in a low-dust environment as much as possible. Large dust can affect the display, and excessive dust can damage the circuit. If water enters for various reasons, switch off the power immediately until all the components in the screen are dry.
Second, switch screen notes
1. Open screen: first open the control computer to enable normal operation and then open the LED display screen;
2. Close the screen: First turn off the LED screen power, turn off the control software, and then turn off the computer properly; (the first off the computer does not turn off the display, it will cause the screen body to appear highlights, burn the lamp, the consequences are serious)
3. The interval between switching screens should be greater than 5 minutes;
4. To avoid opening the screen in the full white screen state, because this time for the maximum power state, the impact current of the entire distribution system is the largest;
Third, power supply precautions
1. LED module is DC +5V power supply (working voltage: 4.2 ~ 5.2V), prohibit the use of AC power supply; the positive and negative terminals of the power supply terminals are strictly prohibited (Note: Once the connection is reversed, it will burn the product or even cause a serious fire) ;
2. LED display power supply voltage: 220V ± 10% frequency: 50HZ ± 5%;
3. The safe earth contact is reliable, the ground wire and the zero wire are isolated and reliable, and the access power is away from the high-power electrical equipment;
4. If an abnormality such as a short circuit, trip, burning line or smoke is discovered, the power-on test should not be repeated and the problem should be promptly searched;
5. Keep the power supply stable, and do a good job of grounding protection against lightning strikes. Do not use it under harsh natural conditions, especially strong lightning.
6. Steps must be taken to power the big screen power supply step by step, because the entire screen's maximum power state will impact the entire distribution system.
7. LED display screen does not allow full brightness of the full white screen for more than half an hour, so as to avoid excessive current, power cord heat, LED lamp damage, affect the life of the display, it is recommended to play the main dynamic video;
8. During the use of LED display products, the power cannot be turned on or off continuously, and the operation between the two should be separated by at least 1 minute.
9. The LED display has a large screen internal circuit. Non-professionals are forbidden to touch it to avoid electric shock or damage to the circuit. If there is any problem, please ask a professional to do the repair.
Fourth, cleaning precautions
1. Regular cleaning and maintenance: LED full-color display screen is exposed to outdoor wind, sun, and rain for a long time. Even if the indoor LED display takes a long time, more dust and rain will be accumulated on the screen. This needs to be cleaned regularly and in a timely manner so as not to affect the viewing effect;
2. If cleaning the surface of the module, use a soft brush and gently brush. Do not use any liquid substance to clean the LED module surface, otherwise the LED lamp beads may be damaged;
3. Correctly wipe: The surface of the LED display screen can be wiped with alcohol, or use a brush or a vacuum cleaner to remove dust. Do not wipe directly with a damp cloth.
Fifth, moisture and storage requirements
1. Storage temperature requirements: ambient temperature -40 °C ≤ t ≤ 60 °C, after the package is opened, LED products must be stored in the temperature <30 °C and humidity <60% of the environment;
2. According to the display screen, the control part of the environment, to avoid insect bites, if necessary, should be placed rat poison;
3. The LED display cannot be turned off for a long period of time. If the screen is not used for more than 3 days in a high-humidity environment, warm-up lighting is required each time the screen is lit: 30%-50% of the brightness is warmed up first. 4-8 hours, then adjust the screen body to normal brightness (80%-100%) to remove the moisture so that there is no abnormality in use; if the screen body is not used for more than 7 days, each time the screen body is lit Warm-up lighting is required: 30%-50% of the brightness is warmed up for more than 12 hours, and then the brightness is adjusted to normal brightness (80%-100%) to lighten the screen so that moisture can be removed for use. No abnormality.