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机型:凯歌4D17U 故障现象:如图所示的光栅:屏幕中间为一条垂直亮线,且比其它任何部分都亮,亮线两侧光栅成V形对称形状,斜线上部光栅亮度正常,但往上闪烁不定,斜线下两部分有较暗的闪烁状亮光,无正常光栅。由于亮线部分比其它部分光栅亮,故亮度开关关小以后,就只
Model: Kai Ge 4D17U Symptom: As shown in the grating: the middle of the screen is a vertical bright line, and more than any other part of the bright line on both sides of the grating into a V-shaped symmetry, the upper ramp grating normal brightness, but Up blinking indefinitely, two parts under the slash have a dark flashing light, no normal grating. Bright part of the light than other parts of the grating light, so after the brightness switch off small, only