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行幅变化是学生调试、维修电视机常碰到的问题,本文通过实验探索行频、逆程电容、S校正电容引起的行幅变化,以及对行逆程脉冲、中压、行输出级电流的影响,对行幅变化的原因进行了较深入的分析,并对《电视机维修技术》教材的有关分析提出不同的看法。
The change of line width is a common problem that students debug and repair TV sets. This paper explores the changes of line width, line reversal capacitance and S correction capacitance, as well as the effects of line reverse pulse, medium voltage, line output current The paper analyzes the reason of the change of the traveling pattern and puts forward different opinions on the analysis of the textbook of TV repair technique.