故障表现为:不定时跳菜单 检修及分析:机器不定时跳菜单,拆机把按键拔掉试机,故障不再次出现。怀疑是按键坏,换掉所有的按键试机故障依旧,最后发现是按键板是的D2二极管漏电,换了以后长时间试机一切正常。 |
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