彩色显像管的偏转线圈非但起扫描作用,还起动会聚校正的作用,所以偏转线圈是在显像管厂安装并经精细调试好的。一旦偏转线圈损坏后,一定要更换同型号的,并要进行复杂的调整,才能正常工作。如果更换的型号不对,或是调整不当,则会破坏色纯与会聚。但只要修理方法得当,大部分损坏的偏转线圈都可修复。下面举例介绍彩电偏转线圈的修复技术。 The deflection coil of color picture tube not only plays the role of scanning but also starts the convergence correction function. Therefore, the deflection coil is installed in the tube factory and fine-tuned. Once the deflection coil is damaged, be sure to replace the same model, and to make complex adjustments in order to work properly. If the replacement of the wrong model, or improper adjustment, it will destroy the color purity and convergence. However, as long as the repair method is correct, most of the damaged deflection coils can be repaired. The following example describes the color TV deflection coil repair techniques.