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故障现象:小光栅,无图像、无伴音。仔细观察屏幕,光栅长和宽大约为整个屏幕长和宽的一半左右,并且光栅上有较淡的噪波点,键控、遥控操作正常。自动
Symptoms: small grating, no image, no sound. Careful observation of the screen, the grating length and width of about the entire screen length and width of about half, and the grating on the lighter noise point, keying, remote control is operating normally. automatic