关于LED显示屏，LED条屏的维修资料。LED显示屏常见故障及解决方法。比如595,138,4953等IC功能等等。资数收到来源www.3gQueue.com 排队机应用上，LED条屏都很实用的资料。-On the LED display, LED screen be repair information. Common Faults and LED display solutions. 595,138,4953 functions such as IC and so on and so on.

1.了解电路的工作原理 2.掌握电路的调试方法 3.学习电路的装配方法 4.学会解决电路中的故障 -1. To understand the working principle of circuit 2. Master debug circuit 3. Learning circuit assembly 4. Learn to solve the fault circuit

vxworks系统启动问题的故障处理步骤，和解决方法-troubleshooting procedures and solutions for vxworks system booting problems