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上门维修一台彩电,到用户家后,发现是一台西湖牌54CD6型(21英寸)彩电,故障为“三无”。据用户称:该机是在播放中机内发出几声“卟卟“声后变为”三无“的。根据经验,该机型的易损件为电源厚膜块N80(1STR5412)击穿,引起保护二极管VD80(6SR2M)击穿,2A熔丝烧断。拆开机器,测量上述
Home repair a color TV, to the user’s home, found to be a West Lake brand 54CD6 (21 inch) color TV, the fault is “three no.” According to the user said: This machine is playing in the machine issued a few times after the “porphyrin porphyrin” sound into “three noes.” According to experience, the model of wearing parts for the power film N80 (1STR5412) breakdown, causing the protective diode VD80 (6SR2M) breakdown, 2A fuse blown. Open the machine and measure above