广告牌上有个字不亮了怎么修
一、What is the reason why the lights behind the large billboard display do not light up?
The reason why the lights behind the large billboard recruitment display are on indicates his status. If the lights are not on, it means he has been turned off.
1. Be sure to check the power connection and switch:
If the LED light box billboard does not light up, you first need to check the power connection and switch . Make sure the power plug is plugged in and the power switch is on. Also make sure the power cord is not damaged or unplugged, try re-plugging it to make sure the connection is OK. In addition, you also need to check whether the switch on the billboard is turned on. Sometimes the switch may not be turned on, causing the light box to not light up.
2. Check whether the LED light tube needs to be replaced:
The LED light box billboard does not light up, which may also be caused by damage to the LED light tube. LED lamps have a limited life span. When the lamps are aged or damaged, the light box will often not light up. At this time, the lamp needs to be replaced. Generally speaking, replacing the lamp can solve this problem. Please make sure to choose the appropriate type of lamp and follow the correct installation method when replacing it.
If none of the above methods solve the problem, or you are not sure how to repair it, it is recommended to contact a professional LED light box billboard repairman. They have rich maintenance experience and professional equipment, and can quickly locate and solve light box failures. Keep in mind that doing repairs yourself may lead to more serious problems, so it's best to seek professional help if you're unsure.
If the LED light box billboard does not light up, you first need to check the power connection and switch . Make sure the power plug is plugged in and the power switch is on. Also make sure the power cord is not damaged or unplugged, try re-plugging it to make sure the connection is OK. In addition, you also need to check whether the switch on the billboard is turned on. Sometimes the switch may not be turned on, causing the light box to not light up.
2. Check whether the LED light tube needs to be replaced:
The LED light box billboard does not light up, which may also be caused by damage to the LED light tube. LED lamps have a limited life span. When the lamps are aged or damaged, the light box will often not light up. At this time, the lamp needs to be replaced. Generally speaking, replacing the lamp can solve this problem. Please make sure to choose the appropriate type of lamp and follow the correct installation method when replacing it.
If none of the above methods solve the problem, or you are not sure how to repair it, it is recommended to contact a professional LED light box billboard repairman. They have rich maintenance experience and professional equipment, and can quickly locate and solve light box failures. Keep in mind that doing repairs yourself may lead to more serious problems, so it's best to seek professional help if you're unsure.