Liquid crystal display problems are usually caused by a certain internal circuit not working properly, which may produce many kinds of problems, so there are many ways to detect problems.small lcd screens
Observation
Observation method is to check the obvious problems of the display by seeing, hearing, touching, nose and so on. Observe not only carefully, but also comprehensively. By observing and searching for significantly damaged components, you can roughly determine the size and scope of the problem, and even find the problem immediately.
Visual inspection method:
The visual inspection method means that when the monitor works abnormally, most of the problem phenomena can be observed from the monitor such as the display screen (such as flower screen, color problem, etc.). This requires careful observation, inspection and analysis, and then go to the rough, remove the false and save the truth, and finally find out the real problem part until the problem is eliminated.
Static resistance measurement method:
The static resistance measurement method mainly measures whether there are significant short circuits and short-circuit components. The short-circuit components must be eliminated before power-on and overhaul, otherwise the problem will be enlarged and the maintenance difficulty and cost will be increased.
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