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显像管是电视机的一个重要部件,其价格一般占电视机总价的40％左右。因此,依照显像管的故障,分析显像管修复可能性及方法是有一定的实用意义。一、衰老显像管衰老后,表现的故障现象是电视机接通电源后要过一段时间才有光栅,且亮度较暗,图像变淡,开大亮度则聚焦变坏,几分钟后,图像才逐渐好转,若是彩管中一个或两个阴极衰老,还会造成偏色,白平衡
Picture tube is an important part of the television set, the price of which generally accounts for about 40% of the total TV set. Therefore, in accordance with the CRT failure, analysis of the possibility of CRT repair and methods have some practical significance. First, aging The aging tube, the performance of the fault phenomenon is that after the power on the TV to have a raster only after a period of time, and the brightness is dark, the image fades, open the large brightness of the focus becomes bad, a few minutes later, the image gradually Improved, if one or two cathodes in the CPT aging, but also cause color cast, white balance