早期进口的德律风根牌56cm彩电,在社会上拥有一定数量,随着使用年限的增加,各种故障频繁出现,个别的甚至难以修复。该机电路比较特殊,元器件紧缺,检修难度较大。笔者在检修中总结出以下三点经验,供同行参考。一、故障多发部位该机型因印制线路较密较细,焊盘面积过小,牢固程度比较差。随着使用年限的延长,电源电路、行输出电路、水 Earlier imported Telefunken brand 56cm color TV, in the community have a certain number, with the increase of the service life, a variety of failures occur frequently, individual or even difficult to repair. The circuit is rather special, shortage of components, maintenance more difficult. The author summed up the following three points in the maintenance experience for peer reference. First, the fault prone parts of the model due to the printed circuit is more dense and thin, pad area is too small, less solid. With the extension of life, power circuits, line output circuit, water