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Coreman LED provide guiding for the whole display project process.
From Pre-sales to after-sales.
1. Reply enquiries timely within 12hours.
2. Market research and forecast for customer.
3. Provide unique and professional solutions based on customer's requirement.
4. Some guiding for the installation on site.
5.CAD drawing can be provided if necessary.
6.installation video will be provided.
7.Manual provided,customer can learn it in advance.
1. Follow each process of the production.
2. modules test 2days,48hours.
display test 3 days,72hours
3. Photos and videos as per customer's requirement.
4. All orders with 3%-10% spare parts on different project.
1. Lifetime free maintenance and upgrade.
2. Complaint respond period not exceed 24 hours; maintenance guidance and problem solution supplied in 48 hours.
3. Customer satisfaction tracking report.
4. Free technician training.
5. Full set of documents free of charge, which including installation guidance, software operation manual, easy maintenance manual and control system software CD and so on.
6. Special service for big project, such as stadium, exhibitions, squares and so on.
7. On-line support: teamviwer+Skype.
8.On site service: Our engineer can go to your place to help you.
They can speak English directly.
Video led display Notice:
1. Switching sequence: When opening the screen, start the computer first, then open the screen. When shutting down the screen: shut down the screen first, then shut down. (Turn off the computer without the display screen first, it will cause the screen to appear high bright spot, burning the lamp tube, the consequences are serious. )
2. When switching on and off the LED display screen, the interval time should be more than 5 minutes.
3. Only when the computer enters the engineering control software can the screen be turned on.
4. Avoid opening the screen in full-white screen state, because the impact current of the system is the largest at this time.
5. Avoid opening the screen when it is out of control, because the impulse current of the system is the largest at this time. (Because the computer does not enter the control software and other programs; the computer is not powered on; the power supply of the control part is not turned on.)
6. When the ambient temperature is too high or the heat dissipation condition is not good, we should pay attention not to open the screen for a long time.
7. When one line of LED display body appears very bright, attention should be paid to shutting down the screen in time. In this state, it is not appropriate to open the screen for a long time.
8. The power switch tripping of the display screen often occurs. The screen body should be checked or the power switch should be replaced in time.
9. Check the firmness of the joint regularly. If there is loosening phenomenon, pay attention to timely adjustment, reinforcing or updating lifting parts.
10. According to the environment of the display body and the control part, insect bites should be avoided and rodenticides should be placed when necessary.
11. Thunderstorm and damp weather should be handled promptly.