中国古代易经之精华四柱八字之研究和实践

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KEDA杂牌机有时能开机有时不能开机

2009-08-06 10:35:24| 分类：默认分类 | 标签： |举报 |字号大中小订阅

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查CPU电源5V正常，时钟，数据线电压也正常，更换新的晶振，故障依旧，怀疑CPULC863524B复位电路有问题，检查复位电路也正常，估计故障在CPU，更换CPU故障排除。

结论：杂牌机易受雷击，又因CPU电源供给过于简单，当雷电电压过高时就会损坏CPU。

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