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1故障现象照像时出现2张白片，像机自检正常，只是荧光屏上无图象，无光栅，且不报任何错误。2分析与检修首先调节HOREBD上的R18，无效，调节亮度Brightness也无图像，怀疑监视器本身有问题，监视器有光栅的必要条件是显像管阴极有电子发射和阳极有高压。通电观察，发现灯丝亮
1 Failure phenomenon There are 2 white films in the camera. The camera self-checks normally, but there is no image on the screen, no grating, and no error is reported. 2 analysis and overhaul First adjust the R18 on the HOREBD, invalid, adjust the brightness Brightness also no image, suspect the monitor itself has a problem, the monitor has a grating if the cathode of the tube has electron emission and the anode has high voltage. Power observation, found that the filament is bright