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光栅压缩为一条水平亮带,位于屏幕上半部,如图1所示。调整场频、场幅、上线性和下线性都不能使光栅拉开占满屏幕。经检查有关晶体管、电阴、电容等元伯未发现有开路或短路故障,后用电容并联检查法终于发现电解电容3C_8
The grating is compressed into a horizontal band, located on the top half of the screen, as shown in Figure 1. Adjusting the field frequency, field amplitude, on-line and off-line can not make the raster fill the screen. Upon examination of the transistor, cathode, capacitor, etc. Uncle found no open or short circuit fault, after the capacitor parallel test method finally found electrolytic capacitor 3C_8