故障现象一条水平亮线，检修步骤，测ＩＣ３０１，ＬＡ７８４０６脚２７Ｖ２脚０Ｖ，很显然ＬＡ７８４０坏，换一ＬＡ７８４１开机正常，为防后患把Ｃ３２５１００ＵＦ/３５ＶＣ６１０，Ｃ６０９５０Ｖ４７ＵＦ同时换新． |
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