Screen light box power failure after the time is not accurate cause?

Inaccuracies could be motherboard problems.

Switch screen precautions

1, open the screen: first open the control computer so that it can run normally and then open the LED display screen.

2, turn off the screen: first turn off the LED screen body power, turn off the control software, and then turn off the computer correctly; (Turn off the computer first without turning off the display screen, which will cause high highlights in the screen body, burn the lamp tube, and have serious consequences)

3, the switch screen time interval should be greater than 5 minutes.

4. Avoid opening the screen in the all-white screen state, because it is the maximum power state at this time, and the impact current on the entire distribution system is the largest.

Power supply precautions

1, LED module for DC +5V power supply (working voltage: 4.2~5.2V), do not use AC power supply; The positive and negative terminals of the power terminal are strictly forbidden to be reversed (note: once reversed, it will burn the product and even cause a serious fire).

2, LED display power supply voltage: 220V±10% frequency: 50HZ±5%.

3, safe ground contact is reliable, ground and neutral line isolation is reliable, access power away from high-power standby.

4, such as short-circuit, tripping, wire burning, smoke and other abnormal appearance, should not be repeated power testing, should find the problem in time.

5, keep the power supply stable, and do a good job of grounding protection to avoid lightning strikes, do not use in harsh natural conditions, especially strong lightning weather.

6, must step by step to the large screen power supply power supply, because the maximum power state of the whole screen will have an impact on the entire distribution system.

7, LED display is not allowed to play the highest brightness of the all-white picture for more than half an hour, so as not to cause too much current, power line heating, LED light damage, affecting the service life of the display, it is recommended to play dynamic video.

8, LED display products in the use of the process, not continuous on and off the power supply, the operation between the two should be separated by at least 1 minute.

9, LED display screen internal line, non-professionals are prohibited to touch, so as to avoid electric shock, or cause line damage.

Cleaning precautions

1, regular cleaning and maintenance: LED display for a long time, the screen will accumulate more dust and rain wash traces, which need to be cleaned regularly and timely to prevent the effect of viewing.

2, such as cleaning module surface, please use a soft brush, gently brush. Do not use any liquid substance to clean the surface of the LED module, otherwise the LED lamp bead may be damaged.

3, the correct wipe: LED display screen surface can be wiped with alcohol, or use a brush, vacuum cleaner for dust, can not be wiped directly with a wet cloth.

Moisture-proof and storage requirements

1, storage temperature requirements: ambient temperature -40℃≤t≤60℃, after the packaging is opened, LED products must be stored in the temperature <30℃ and humidity <60% environment.

2, according to the display body, the control part of the environment, to avoid insect bites, if necessary, should be placed anti-rat poison.

3, the LED display can not be closed for a long time, in a high humidity environment, if the screen body is not used for more than 3 days, each time the screen body needs to be preheated: 30%-50% of the brightness first preheat 4-8 hours, and then adjust to the normal brightness (80%-100%) light the screen body, so that the moisture is removed, so that there is no anomaly in use; If the screen body is not used for more than 7 days, each time the screen body needs to be preheated: 30%-50% of the brightness is preheated for more than 12 hours, and then adjusted to normal light (80%-100%) to light the screen body, so that moisture is removed, so that there is no anomaly in use.