How to find the LED display screen out of order in time
Author:Tian Xu Time:2021-09-22 10:15 Browse(252)
Sometimes it's unpredictable that this thing will break down. It can only be said that it can be detected regularly to eliminate hidden dangers.
Sometimes it's unpredictable for this thing to break down. It can only be said that regular detection can eliminate hidden dangers.

How to find the LED display screen out of order in time

the following detection method is attached.

1. Resistance detection method.
adjust the multimeter to the resistance level to detect the resistance to ground at a certain point of a normal circuit board, and then detect whether the same point of another same circuit board is different from the normal resistance value, If it is different, the scope of the problem will be determined.

2. Voltage detection method.
set the multimeter to the voltage level to detect the voltage to ground at a certain point of the suspected circuit, and compare whether it is similar to the normal value, otherwise the scope of the problem will be determined.

3. Short circuit detection method.
set the multimeter to the short circuit detection level (some are diode voltage drop level or resistance level, This method must be operated when the circuit is powered off.
to avoid damaging the meter.

4. Voltage drop detection method.
adjust the multimeter to the diode voltage drop detection position, because all ICs are composed of many basic single components, which are just miniaturized, Therefore, when there is current passing through one of its pins, there will be a voltage drop on the pin.
generally, the voltage drop on the same pin of the same IC of the same model is similar.
according to the voltage drop value on the pin, it must be operated when the circuit is powered off.
this method has certain local limitations.
for example, the detected device is high resistance, It can't be detected.

subsequent detection.
includes many areas, such as LED display waterproof, cooling layer, LED indication waterproof coating, rain proof area on the display, cooling air on both sides, power supply line, etc,These basic parts and components constitute the whole picture and text LED display with good stability. In the later stage of technical maintenance, it is necessary to carry out unified management and maintenance for these parts and components. In case of rust, instability and damage, they need to be replaced in time, To ensure the safe use of the whole display screen.


if you have any other questions, please consult the powerful giant color outdoor LED display screen, which is mainly used outdoors.
the LED light is direct plug-in, with high brightness in the daytime, strong waterproof, moisture release, anti-corrosion, high temperature and low temperature protection, and long visual distance.
indoor LED display screen is mainly used indoors.
for example, conference room, In railway stations, studios, etc., indoor screens don't need to be so waterproof.
Shengye optoelectronic professional LED display solution supplier is just a brief introduction.
for more information, please refer to: LED display http://www.ledful.cn ,
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