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故障现象:该机从购置使用两年之后,就出现了画面水平幅度逐渐增大的毛病。在收视日照电视台时,其屏幕的左上角所显示的台标“RZTV”只能看到“ZTV”字样,而“R”字母看不到。开机检查场幅正常,但行幅过大,在接收电视信号发生器的圆盘信号时,屏幕所显示电子图的图形左右两边拉长,呈压偏状。
Symptom: The aircraft from the purchase of two years after the use, there has been a gradual increase in the level of the picture of the problems. When viewing the Rizhao TV station, the station logo “RZTV” displayed in the upper left corner of the screen can only see the words “ZTV”, and the letters “R” can not be seen. Boot check the normal range, but the line is too large, in the reception of television signal generator disc signal, the screen shows the electronic map on both sides of the drawing on both sides of the elongated, was partial pressure.