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故障现像：监示器闪烁屏中心黑暗无图像同时影像增强器附近可听到继电器交替吸合声。 分析与检修：打开影像增强器保护罩观察发现声音是由ＩＶＣ－５影像增强器电源供给电路继电器ＲＹ２交替工作产生的，电阻Ｒ４６表面发热变黑、电容Ｃ５０、Ｃ４９温度过高，观察影像增强?
Fault phenomenon: monitor scintillation screen center dark no image At the same time, the relay alternately sounds in the vicinity of the image intensifier. Analysis and Maintenance: Open the image intensifier protection cover and observe that the sound is generated by the alternating operation of the IVC-5 image intensifier power supply circuit relay RY2. The surface of the resistor R46 is heated to black, and the temperature of the capacitors C50 and C49 is too high. Observe the image enhancement.