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采用长虹TDA机芯的机型彩电有:D2962、D2525、D2963、D2965等。长虹TDA机芯彩电,易出现光栅收缩故障,即显示“蓝屏”时,上部分出现几条虚线,有信号时,图像收缩闪动,同时扬声器中发出“扑扑”声。故障原因:是行输出级供电滤波电容C411(10μF/250V)电解液干涸所致,只需更换此电容后故障便可排除。但一年以后故障又现,这是因为C411在行
Using Changhong TDA movement models of color TV are: D2962, D2525, D2963, D2965 and so on. Changhong TDA movement color TV, prone to grating contraction failure, that is, “blue screen”, the upper part of the emergence of several dotted lines, a signal, the image shrinks flashing, while the speaker issued a “flutter” sound. Fault reason: Line output power supply filter capacitor C411 (10μF / 250V) electrolyte dry up, just replace the capacitor fault can be ruled out. But one year after the fault again, it is because C411 in the line