Everyone should understand that the human-machine interface has become more and more intuitive due to the gradual investment in the dot matrix LCD liquid crystal display, and the operation of the dot matrix LCD liquid crystal display also has high brightness, low power consumption and resistance to humidity and heat. And other performance characteristics. However, the dot matrix LCD display with excellent service may encounter some common failure factors in the daily operation process, as follows:
One: No signal output phenomenon
If there is no signal output during the use of the dot matrix LCD display, it may be caused by abnormal control card voltage, incorrect flat cable plugging direction, etc. therefore. The operator should pay attention to checking the sending and receiving cards, and adjust the voltage to the normal value. In addition, if the dot-matrix LCD screen microcomputer crashes or breaks, it will easily cause the full screen to light up, and the microcomputer needs to be restarted.
Second: the whole screen shake phenomenon
If the approved dot-matrix LCD liquid crystal display shows the whole screen flickering, it may be because the address of the control card and multimedia card is incorrect, and the operator needs to re-adjust or replace the components. In addition, if the dot matrix LCD liquid crystal display has slight jitter on the entire screen, it is caused by insufficient power of the screen power supply. The operator can measure whether the power supply is normal. If the power supply voltage is lower than the normal use range, the operator needs to Array LCD liquid crystal display needs to be adjusted.
Third: Part of the display board does not light up
The dot-matrix LCD liquid crystal display screen does not light up in some parts of the display panel during operation. It is because the switching power supply that provides power to the display panel has no output. The operator first turns off the screen to check whether there is a short circuit between the equipment lines. In addition, if the power supply is insufficient, it is easy to cause the dot matrix LCD liquid crystal display to lose power. The operator can use one power supply for the stable dot matrix LCD liquid crystal to avoid electrical interference to the equipment.
Not only that, the common failures of dot-matrix LCD liquid crystal display include screen shaking and ghosting, screen grids, and so on. Operators can follow the instructions for use of dot matrix LCD or the manufacturer's after-sales service to troubleshoot problems. In addition, in the process of using the reliable dot-matrix LCD liquid crystal display, the operator should also pay attention to check whether the serial cable of the device is loose or falling off, and whether the various components are tightly connected, etc.
