With the popularity of LED electronic display screen and LED full color applications, LED display has become the one to beautiful scenery line in today's information society, especially in the night comes, LED display blossom a bright colour images can make people feel the world.
With the expansion of the LED display application range, however, the failure problem of full color LED display
more and more, so how to test the full color LED display failure problem?
The following simple introduction for everyone by LED display manufacturer.
1, resistance test, the multimeter to the resistance, the detection of a normal circuit board points to the ground resistance, detection of another piece of the same circuit board of the same point test, if there are different with normal resistance if different criterion to determine the scope of the problem.
2, voltage test, dispatch multimeter to voltage, detecting circuit in question at some point to ground voltage, compare whether similar to normal, or determine the scope of the problem.
3, short circuit test, dispatch multimeter to short circuit test block (
Have a plenty of pressure drop of the diode reverse or resistance, generally has alarm function)
, detect whether there is a short circuit phenomenon, found that after short circuit should be a priority, so don't burn out other devices.
The law must be under the condition of the power circuit operation, avoid damage to the table.
4, pressure drop test, will be transferred to the pressure drop of the diode detecting multimeter, because all the IC is composed of the basic unit of many pieces, only the miniaturization and so on one pin when it is energized, will exist voltage drop on the pin.
Generally the same type of IC pins on the pressure drop, according to the pressure drop on the pin value is good or bad, must under the condition of power circuit operation.
This method has some limitations, such as detection device is of high resistance, wouldn't detect it.
Technology is a foundational component of today's fast-paced business environment. Shanxi high-tech Huaye Electronic Group Co., Ltd. who are digital natives are especially equipped to harness technology's power to establish, promote and grow our businesses.
Shanxi high-tech Huaye Electronic Group Co., Ltd. ’s sole aim is to provide exquisite and unheard of features to the concept of producing technology.
Shanxi high-tech Huaye Electronic Group Co., Ltd. 's core technology of led screen
enables us to understand and utilize in a right way.
Overall, led screen may be a great way for manufacturers to expand their use of technology, but the price could present a significant hurdle for some businesses.