4 maintenance methods for LED full color screen
LED screen has a very wonderful performance in commercial information delivery and advertising content display. However, as a large-scale electronic device integrating a large number of electronic components, some small hidden problems can also cause it to fail to work properly. In order to maintain the long-term normal use of the LED screen and improve its service life, we need to regularly repair and maintain it.
But obviously, not everyone has professional LED screen maintenance skills. Even some professional LED screen maintenance personnel will not be able to start when faced with different LED screen products. In order to solve these thorny problems, we provide you with 4 common maintenance methods for LED screen.
GalaxyAV is an LED screen manufacturer with a professional history of more than 20 years, and has very rich experience in flexible led screen, Dome LED screen and video LED wall fields. Our successful LED screen projects around the world are enough to make you trust us.
1. LED screen resistance detection method
For the resistance detection method of LED screen, we need to adjust the multimeter to the resistance gear, first detect the resistance value of a certain point of a normal LED screen circuit board to ground, and then detect the same test point of another same LED screen circuit board to ground resistance value. Observe whether the resistance values of the two are the same. If the values of the two are different, it means that the circuit board of the latter is faulty and needs to be aligned for repair or replacement.
2. LED display voltage detection method
The voltage detection of the LED display screen is to adjust the multimeter to the voltage level, and after the LED screen panel is powered on, the voltage detection is performed on a certain circuit that is suspected to be faulty. Normally, the test voltage value should be equal to the rated voltage value of the LED screen panel. If there is an obvious difference, then there may be a problem in the LED screen panel that requires further repair and replacement.
3. LED screen short circuit detection method
The LED screen short-circuit detection method is to adjust the multimeter to the short-circuit detection block to check whether there is current passing between the circuit segments to be detected. If no current is detected, it means that the circuit in this section of the LED screen panel has been short-circuited and needs to be repaired or replaced immediately. The circuit short circuit phenomenon of LED screen panel is the most common LED screen module failure. Most of the LED screens cannot be used normally due to short circuit.
4. LED screen voltage drop detection method
The LED screen voltage drop detection method is to adjust the multimeter to the diode voltage drop detection file. Because all ICs of the LED screen are composed of many single components, when there is current passing through one of its pins, it will be in the lead. There is a voltage drop across the pin. Normally the voltage drop across the IC pins of the same model is similar. Therefore, when the actual voltage drop of an electronic component is much different than that of other electronic components, we can take the method of replacing this component to repair the LED screen.
For the maintenance methods of the above four kinds of LED screens, we need to keep it in mind and test them from time to time. Avoid the failure rate of LED screen, thus extending the service life of our LED screen. In turn, the output value of the LED screen per unit time is increased, and the overall cost of using the LED screen is reduced.
If you have any other problems related to the maintenance of the LED screen, please contact our senior technical engineers. We will answer all your questions about LED screen for free, especially in the field of flexible LED screen and Dome LED screen, we are experts.