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本例彩色拖尾故障是典型的显像管老化,依本人经验只有激活才能使显像管正常显示图像。一、几种激活方法的比较激活显像管的方法已有不少文章介绍,归纳起来有以下五种: 1.高压激活法。用黑白电视机高压包产生的高压在栅—阴极之间放电激活激活时灯丝加热否均可,但加热效果更好些。 2.电容放电激活法。用300V左右的直流电源向
This case of color tailing failure is a typical tube aging, according to my experience only to activate the tube to display the normal image. First, the comparison of several activation methods Activation of the CRT method has been a lot of articles, summed up in the following five: 1. High-voltage activation method. High-voltage black-and-white TV kits generate discharge between the gate and cathode Activation of the filament during heating Activation No No, but heating is better. 2 capacitor discharge activation method. Use about 300V DC power supply