彩电接触不良故障的分析和维修

Analysis and Maintenance of Color TV Set Poor Contact and Failure

彩电中接触不良故障占整机故障的50％以上，一旦出现接触不良故障，很难找到故障部位．通过分析接触不良故障类型及产生原因，采用敲击振动检查法、电烙铁点焊检查等常用的检查方法并掌握了一定技巧和规律，达到事半功倍的效果．

Poor contact and failure of color TV set accounts for above 50%. Once a poor contact occurs, it is difficult to find its fault. By analyzing the types and causes of poor contact, impact excitation inspection method and iron spot welding inspection methods are proposed to yield twice the result with half the effort.