LED display screen is the same as traditional electronic products. In order to make the LED electronic display screen have a longer life, it is necessary not only to pay attention to methods, but also to carry out maintenance. With the wide use of LED display, there are more and more use problems. The influence of various objective and subjective factors has caused problems such as the decrease of LED display life and malfunction of functions. In order to better use the LED display related products, we have made some feasible summaries on the relevant use precautions and daily maintenance.

A、 Precautions for use environment of LED large screen

1. The working environment temperature range is - 20 ℃ ≤ t ≤ 50 ℃, and the working environment humidity range is 10% to 90% RH;

2. Avoid using or storing under high temperature, high humidity, high acid/alkali/salt environment;

3. Keep away from flammable materials, gas and dust;

4. Avoid strong collision and collision with sharp objects during transportation;

5. When the ambient temperature is too high or the heat dissipation condition is poor, do not open the screen for a long time;

6. When the LED display screen with humidity exceeding the specified value is powered on, it will lead to corrosion of parts, or even short circuit, thus causing permanent damage;

7. It is strictly forbidden to enter the screen body with water, iron powder and other metal objects that are easy to conduct electricity. LED display should be placed in a low dust environment as far as possible. Large dust will affect the display effect, and excessive dust will damage the circuit. In case of water ingress due to various reasons, please cut off the power immediately until all components in the screen are dry.

B、 Precautions for LED large screen switch screen

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 switching screens 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;

C、 Precautions for power supply of LED large screen

1. LED module is DC+5V power supply (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 electrical equipment;

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 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, 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. The internal circuit of the large LED display screen shall not be touched by non professionals to avoid electric shock or damage to the circuit; If there is a problem, ask a professional for maintenance.

D、 Precautions for cleaning LED large screen

1. Regular cleaning and maintenance: The large LED full-color display screen is exposed to the wind, sun and rain in the outdoor environment for a long time. Even if the indoor LED display screen has been exposed for a long time, more dust and rain wash marks will accumulate on the screen, which requires regular and timely cleaning to prevent affecting the viewing effect.

2. If you want to clean the surface of the module, please use a soft brush and gently brush. 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. Correct wiping: The large screen surface of the LED display screen can be wiped with alcohol, or dusted with a brush or vacuum cleaner, instead of directly wiping with a damp cloth.

E、 Moisture proof and storage requirements for LED large screen

1. Storage temperature requirements: ambient temperature - 40 ℃ ≤ t ≤ 60 ℃. After the package is opened, LED products must be stored in an environment with temperature<30 ℃ and humidity<60%;

2. According to the environment of the display screen and the control part, avoid insect bites, and place rodenticide if necessary.

3. The LED display screen cannot be closed for a long time. In the high humidity environment, if the screen is not used for more than 3 days, the preheating lighting method shall be adopted every time the screen is lit: preheat the screen for 4-8 hours at the brightness of 30% - 50%, and then adjust it to the normal brightness (80% - 100%) to light the screen, so as to remove the moisture, so that there is no abnormality during use; If the screen has not been used for more than 7 days, the preheating lighting method shall be adopted every time the screen is lit: 30% - 50% of the brightness shall be preheated for more than 12 hours, and then adjusted to normal brightness (80% - 100%) to light the screen, so as to eliminate moisture, so that there is no abnormality during use.

The maintenance of full-color LED large screen plays a vital role in prolonging the service life of the display and ensuring the normal operation of the LED large screen. If the LED display fails during the warranty period, try to keep close contact with the after-sales personnel of the manufacturer and repair under reasonable guidance. To sum up, LED large screens belong to light-emitting and heating semiconductor display products. Although their theoretical life value can reach 100000 hours, they must have good quality and be established in correct maintenance and reasonable use environment to achieve.

Author: kewei

This article from:http://www.ledtransparency.com/news.html