彩色电视机电容器修复、代换技巧

• 作 者: 扬帆
• 出 处: 家电检修技术
• 发表日期: 2001年01期
• 关键词: 电容器 彩色电视机 电容量 振荡器 检波器 电容 时间常数 滤波电容 光栅 输出管

一、代换时电容器的选择电视机电容器损坏,应根据实际电路进行代换,但对各调谐回路的槽路电容、AFC、APC等具有时间常数的滤波电容以及各种振荡器中的电容,各种检波器高频滤波电容的容量,选择同一规格的,特别是应注意行逆程电容不宜随意改变电容量,如该电容量用的太大,会使光栅幅度增大,甚至无光,如该电容量用得太小,

First, the replacement of the capacitor selection TV capacitor damage should be based on the actual circuit substitution, but the tank circuit of the tuner circuit, AFC, APC and other time-constant filter capacitor and a variety of capacitors in the oscillator, A variety of high-frequency filter capacitance filter capacity, select the same size, in particular, should pay attention to the inverse of the capacitor should not be free to change the capacitance, such as the capacitance is too large, will increase the raster amplitude, or even no light, If the capacity is too small,