| 行幅抖得厉害机型：Haier 25T8-K现象：行幅抖得厉害修理过程：用户送来对我讲："刚开机时不显像.发出牛叫‘哞哞’响.耐心等待几分钟.渐渐声像才正常.”经测dianyuan电源有【故障】.换上模块看图像【此机遭过雷电击.那是模块按上去.算算时间到今天.正常使用已两年】.行幅抖动声正常.不知哪里出【故障】.莫非电压不合适.机子又没带图纸.只好调调试一试.先调高到130.还是发抖没有变.后调低到110.行幅稳定没问题. |
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