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北京现代瑞纳导航打不开了怎么回事
更新时间: 2021-05-01 10:20:37  

1、稳压元件故障。

线路板上的稳压元件损坏,导致输出电压不稳定,达不到导航仪启动时所需的电压。解决方法:用万用表检测供电线路部分,更换损坏的元件。

2、线路板元件虚。

元件针脚脱离焊盘,导致信号传输或供电断路.解决方法:用烙铁补焊虚焊点。

关键词: 北京 现代 导航 怎么 回事

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