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求助,九音导航仪问题

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Post time: 2019-5-2 15:08:35
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九音导航仪开始不开机,检查后小板的电源脚与大板的电池电源虚焊所致,连好后开机出现开机画面,后出现无信号的界面,面板按钮不起作用。倒车影像功能正常。是什么原因出现此现象?请帮忙。



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Post time: 2019-5-3 10:39:39
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刷机试试,方易通5000方案
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 Author| Post time: 2019-5-5 15:05:15
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谢谢帮忙,已经解决问题了,还是小板的虚焊导致的问题,拖焊了一遍,猜是虚焊问题致使核心板读不了TF卡上的文件才产生无信号问题。
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