Analysis of quality inspection process for ruiguan indoor advertising machine LED display screen (B)
May .11.2026
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In the production process of SMT placement, welding, module assembly, etc. for indoor advertising machine LED display screens, corresponding testing must be carried out for each key process completed:
1. Indoor advertising machine LED display screen SMT surface mount inspection
By using AOI optical inspection equipment, the accuracy of the placement and solder joint morphology of indoor advertising machine LED display screens can be checked, and problems such as wrong parts, missing parts, and virtual soldering can be detected in a timely manner to avoid problems from flowing into the next process.
2. Indoor advertising machine LED display screen module lighting detection
After the welding of each indoor advertising machine's LED display screen LED module is completed, it will be powered on and lit up to check for dead lights, dim lights, color differences, and other issues. Unqualified products will be directly returned for repair.
3. Aging test of indoor advertising machine LED display screen module
The individual module of indoor advertising machine LED display screen will undergo at least 4 hours of continuous power aging, exposing early failed components in advance and reducing the probability of failure after leaving the factory.
During the aging process, the working temperature and display stability will be checked regularly.
Comprehensive testing of indoor advertising machine LED display screen assembly after completion
After assembling all indoor advertising machine LED display screen modules into a complete screen, a comprehensive inspection of the finished product is carried out:
1. Full screen illumination test
The LED display screen of the indoor advertising machine is powered on and lit up, and the overall brightness uniformity and color consistency are checked.
Check for dead lights point by point, and test whether the display of each grayscale level is normal.
2. Long term aging test of indoor advertising machine LED display screen
Indoor advertising machine LED display screen undergoes continuous power aging for more than 24 hours, tests the heat dissipation performance and long-term stability of the entire screen, monitors parameters such as working current and temperature, and ensures continuous operation without abnormalities.
3. Appearance structure inspection of indoor advertising machine LED display screen
Check whether the splicing gap of the indoor advertising machine LED display screen box is uniform, whether there are scratches or paint peeling on the appearance, and whether the structural installation holes meet the design requirements to ensure smooth on-site installation.
4. Functional testing of indoor advertising machine LED display screen control system
Indoor advertising machine LED display screen debugging sending card, receiving card, testing signal transmission stability, checking whether video switching, brightness adjustment and other functions are running normally.
Final inspection of indoor advertising machine LED display screen before leaving the warehouse
After the indoor advertising machine LED display screen product passes the inspection, it enters the packaging process, and after the packaging is completed, it will undergo final sampling inspection:
Verify that the indoor advertising machine LED display screen product model, quantity, and order are consistent
Check if the packaging protection is intact and if the labeling is clear
Attached are quality inspection records and installation instructions for indoor advertising machine LED display screen
Conclusion
A complete quality inspection process is the foundation for ensuring the quality of indoor advertising machine LED display screens. Ruiguan strictly implements testing standards at every step from raw materials to finished products through multiple links and layers of control, with the aim of delivering stable and reliable indoor advertising machine LED display screen products to customers, reducing later use failures, lowering maintenance costs of indoor advertising machine LED display screens, and making customers feel more at ease using them.
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