Repair Academy
How to Repair Outdoor LED Module P3.9
www.ledfixlab.com
Lesson Summary
In this video, I show how to repair an outdoor LED screen module P3.9 when the PCB middle layer has a short circuit. This tutorial covers troubleshooting, soldering, testing, and practical maintenance tips for LED technicians, repair engineers, installers, and anyone working with outdoor LED screens.
Tool Recommendation
Soldering； Solder Wire； Flux； Tweezers； Multimeter； PCB Scraper / Precision Knife； Desoldering Braid； Hot Air Rework Station； Magnifying Glass / Microscope； LED Module Tester； Novastar Control Software； Novastar Sending Card； Novastar Receiving Card； Network Cable； Power Supply； Power Cable； Test Pattern Software；