论文部分内容阅读
一台福日牌HFC—450G型彩电出现水平一条亮线的故障。查场输出部分的厚膜电路HM6232的①脚电压为60V(正常值是75V),且电流很小。拆下该厚膜集成块检查无损坏元件,续查其外围电路也无元件损坏,进而查出场偏转线圈已断路。该偏转线圈型号为BJ6B。因场偏转线圈难以配到,试将偏转线圈拆下维修。首先焊下场偏转线圈的三个接线端,细细察看场偏转线圈是由上下二块喇叭状磁体拼合而成,中间接口由二片弹性钢带扣央紧,并用胶粘牢。接下来用小型一字型螺丝刀撬开弹性钢夹,小心括云磁体与塑壳连接处的粘胶,用螺丝刀轻轻的撬松两块磁体,小心地取出,取出后发现上下两磁体上的线圈在喇叭口粘胶的地方
A Fu-Hachi HFC-450G-type color TV appearance of a bright line of failure. Check the output part of the thick film circuit HM6232 ① pin voltage is 60V (normal is 75V), and the current is small. Remove the thick film integrated block inspection of non-destructive components, continued to check the external circuit and no component damage, and then check the field deflection coil has been open. The deflection coil model BJ6B. Due to field deflection coil is difficult to allocate, try to remove the deflection coil repair. First of all, there are three terminals of the deflection coil in the field. Carefully inspect the deflection coil of the field. The middle of the deflection coil is composed of two upper and lower trumpet-shaped magnets. The middle interface is tightly pressed by two elastic steel buckles and firmly adhered by glue. Next, with a small flathead screwdriver pry open the elastic steel clip, be careful of the cloud magnet and plastic shell connection Department of glue, with a screwdriver gently pry loose two magnets, carefully remove, remove the upper and lower two magnets Coil in the bell mouth glued place