Table of Contents
1. Black Outdoor Digital Signage - Check the mains supply of the outdoor totem
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.
Solution: This situation is very easy to deal with. Find the power-off point, after coordination and communication, power on the outdoor totem to resume normal use.
2. Check the high brightness backlight
Another part of the situation is that the device has a long service life, or the constant current board used for the high brightness LCD screen fails, resulting in regular partial backlight failure. 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 two possibilities that need to be replaced, and you can deal with it accordingly.
Solution: change backlight power supply line or constant current board
3. Black Outdoor Digital Signage - Check the Motherboard or AD board
There is also a part of the motherboard failure that causes the screen to turn off, and the screen does not display, but the sound played is normal, and the signal from the motherboard to drive the screen to light up is not working, resulting in the screen not working, which will also cause the user to report a black screen problem. This problem is dealt with for the motherboard and can be solved immediately.
Solution: change AD board
4. Design defects of unprofessional manufacturers
Another 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 complete 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 this outdoor monitor can only be replaced. It is recommended to choose a professional outdoor advertising player manufacturer, the quality is guaranteed, such as AVLink.
Solution: adjust fans speed or temperature.
5. Check the time setting
Some users set the outdoor kiosks 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.
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.
So AVLink recommends that the outdoor digital signage should keep work during the day, and the heat dissipation system will ensure the normal operation of the entire equipment.
Professional Outdoor Totem Manufacturer AVLink Suggestion
The above basically lists the various situations where “black screens” appear. Although occasional minor problems may be encountered, the probability of outdoor units appearing is very small. Unless you are cooperating with a non-professional manufacturer.
Shenzhen AVLink Technology Co., Ltd. focuses on the R&D, design, production, and sales of outdoor LCD digital signage, providing you with high-quality, cost-effective, customized external advertising player solution.
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