显示器维修
中宇牌 KT-170.M757II型.指示灯不亮.检测电源部分.-12V.+12V.+5V.+80V皆低.后.逐级断负载.当断到LM2469TA时,个电压恢复正常.
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2009-7-10 21:51:02统计:[]
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