At present, the lamp box has become a very important part of the development of enterprises and an indispensable part of daily life. Because of the great function of light box, they are inseparable with daily life. However, the advertising light box industry will also encounter such problems: if the light box suddenly doesn't open, what are the specific reasons? How to maintain and test it? Here, Jinan light box manufacturer will introduce to you how to do when the light box suddenly doesn't light up.
First of all, all the light boxes are not on. First of all, think about why the light boxes are not on all of a sudden. Are they directly connected to the 220V voltage power supply? Or are you mistaken about the power supply?
Then carry out self inspection, check whether the direct contact point between the power supply and the light box is loose or falling off, then check the current of the power supply, and check whether the power supply is burnt. Finally, check whether the LED light source of the light box is short circuited.
Finally, consult the manufacturer again. Generally speaking, the normal manufacturer's delivery has a certain period of warranty on the light source, so the manufacturer will make the most reasonable decision based on your situation by reflecting the situation on site. Under normal circumstances, the reason why the light box doesn't work is that almost all direct contacts with 220V power supply, the power supply is burnt out, so the problem of the light box itself is almost nonexistent.
The second case is that the light box part is not on. In this case, it is usually necessary to check whether the single power control part is loose or the power operation indicator is abnormal. In addition, it can be tested by replacing the power supply. If the power supply is damaged, it can be replaced directly.
The above is how Jinan light box manufacturers deal with the problem of light box not on. The overall size of the light box is large, which will cost a lot of manpower and material resources in the maintenance process. Many times, people who have problems want to find a manufacturer to solve them, but generally speaking, the time may be delayed and they can't provide on-site service, so they can only repair on their own.