故障现象 :开机透视 ,监视器图像上部出现横幅黑影遮挡 ,有图像部分清晰 ;随着机架的左右转动 ,黑影逐渐扩大到遮住 1/ 2图像。故障分析 :从故障现象情况看 ,引起故障的部件应该固定在机架上 ;Ｘ线球管、影像增强器或摄像头。检修步骤与方法 :1 打开影像增强与摄像头相连部分的 Symptoms: On startup perspective, shadows appear on the upper part of the monitor image, and parts of the image are clear. As the rack rotates left and right, the shadows gradually expand to cover 1/ 2 images. Fault Analysis: From the perspective of fault phenomena, the component that caused the fault should be fixed on the rack; X-ray tube, image intensifier or camera. Maintenance procedures and methods : 1 Open the part of the image enhancement connected to the camera