What reason will cause the black screens of outdoor advertising machines?

What reason will cause the black screens of outdoor advertising machines?

Due to the ignorance of the terminal users to outdoor LCD advertising machines, there are several cases in which the black screen phenomenon is usually said to be true. The editor of Geometry outdoor advertising machine has a chat with you.

The first type: It is necessary to confirm whether the mains supply of the machine is normal;

In some cases, the power supply to the outdoor equipment is tripped, or the power supply is disconnected by other things. However, if the user sees that the screen is not displayed normally, it will feedback that the machine has a black screen. This situation is very easy to handle. Find the power-off point, and after coordination and communication, power on the machine to resume normal use.

The second type: check the screen display, whether it is caused by backlight;

Another part of the situation is that the device has a long service life or the constant current board of the high-brightness LCD screen fails, which causes the regularity of the local backlight to fail. When this phenomenon occurs, it will also mislead users to report the black screen problem to you. This problem may be due to poor contact of the backlight power supply line or indeed the constant current board failure. There are 2 possibilities that need to be replaced, and you can deal with it accordingly.

The third type: the motherboard is faulty, causing the screen to not light up;

Another part is that the mainboard failure causes the screen not to light up, and the screen does not display the screen, but the sound played is normal, and the signal from the mainboard to drive the screen to light up is not, resulting in the screen not working, which will also cause the user to feedback the black screen problem. This problem is dealt with for the motherboard and can be solved immediately.

The fourth type: design defects of unprofessional manufacturers;

 The other is the black screen phenomenon known in the industry, that is, because the manufacturer is not professional, the heat dissipation system is not in place when designing the whole machine. As a result, the heat inside the equipment cannot be discharged outside, but heat is accumulated inside. The temperature is extremely high, exceeding the upper limit temperature of the liquid crystal molecules of the LCD screen, and irregular black screens appear on the screen. Such problems should be dealt with by adjusting the fan speed or setting the temperature. If it is still not resolved, then the production machine can only be replaced. It is recommended to choose a professional outdoor advertising player manufacturer, the quality is guaranteed.

 The fifth type: related to the use of the set time;

 Some users set the machine to work normally in the morning to noon, and start at about 3-4 o’clock in the afternoon. However, due to the temperature at noon, the equipment is not working and the internal heat dissipation system is not working, resulting in a relatively high internal temperature. high. When it was turned on in the afternoon, the LCD screen could not work normally due to the high temperature, resulting in a black screen. All our company recommends that the equipment always work during the day, and the heat dissipation system will ensure the normal operation of the entire equipment.

 The above basically lists the various situations where “black screen” appears. Although occasional minor problems may be encountered, the probability of outdoor units appearing is very small. Unless you are using a non-professional manufacturer.