| 故障表现为：黑屏 分析与检修：拆开机器检查发现背光板上的D801烧糊，再测Q802损坏，拆掉Q802,再测量U801 MP3389EF各脚阻值变小，更换上述元件，故障机修到这里，终于修好值得探讨。。 |
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