彩电“三无”(无光栅·无图象-无伴音)是一常见故障。对家庭业余修理者来说,因一没有专用测试仪器,二不能在故障原因未明确之前就买新的器件进行替换试机,所以难度较大;如果没有清晰的维修思路和必需的检修技巧,很难解决问题。作者在业余条件下,借助一只万用表,采用正确的检修方法,顺利地解决了 Color TV “three no ” (no raster · no image - no sound) is a common fault. For amateur repair home, because there is no dedicated test equipment, two can not fail to explain the reasons for the failure to buy a new device to replace the test machine, so difficult; if there is no clear idea of ​​maintenance and necessary maintenance skills, Difficult to solve the problem. The author in amateur conditions, with a multimeter, using the correct method of maintenance, successfully resolved