一、微控制器常见故障的维修微控制器常见故障现象及维修方法介绍如下:1.无规律“花屏”、“死机”主要检测微处理器的基本工作条件是否正常,供电电压是否稳定,复位电路元器件、晶振性能有无不良。另外,微控制器本身损坏或存储器资料丢失,也会造成“死机”。如果微控制器一切正常,需要检查SCALER电路、液晶屏等。2.按键失灵首先检查按键接插件是否接触良好,有无开焊断 First, the common fault of micro-controller maintenance Microcontroller common fault phenomena and maintenance methods are described below: 1. No rules “Huaping ”, “Death ” The main test microprocessor basic working conditions are normal, the supply voltage Is stable, reset circuit components, crystal performance with or without defects. In addition, the microcontroller itself is damaged or memory data is lost, can also cause “crash ”. If the microcontroller everything is normal, you need to check the SCALER circuit, LCD screen and so on. 2 key failure First check the key connector is in good contact, with or without welding