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彩电中的行脉冲包括行同步脉冲和行逆程脉冲。行同步脉冲是指从彩电全电视信号中的同步脉冲经同步分离电路分离出来的复合同步信号,再经微分电路选出的行同步脉冲。行逆程脉冲是指行输出管导通时储存在偏转线圈中的磁场能在输出管截止时对逆程电容充电形成的脉冲。当这两种行脉冲信号丢失后将会引起多种故障现象。下面根据本人在实际维修中所遇到的情况加以说明,以供参改。
The line pulse in color TV includes line synchronization pulse and line inversion pulse. Line sync pulse refers to the TV signal from the TV sync pulse sync separation circuit separated by the composite sync signal, and then differentiated by the differential circuit line synchronization pulse. Line reverse pulse refers to the line output tube turn-on stored in the deflection coil magnetic field can be in the output tube cut-off capacitor formed on the reverse charge pulse. When these two kinds of line pulse signal loss will cause a variety of symptoms. The following according to my actual situation in the maintenance of the situation to be described for the reference.