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故障现象开机能正常自检 ,按下曝光按钮后有时能照相有时不能照相 ,但CRT组件能正常走位。近期故障加剧 ,有时干脆就不能照相了。故障检修打开照相机右侧板去掉显象管暗箱的栓锁 ,可以清楚的看到光栅 ,说明显像管控制电路 ,高压电路均正常 ,排除了显像管系统本身故障的可能性。
Symptom boot normal self-test, press the exposure button sometimes photographed sometimes can not take pictures, but CRT components can walk normally. Recent problems worsened, and sometimes simply can not be photographed. Troubleshooting Open the right side of the camera to remove the lock of the CRT dark box, you can clearly see the grating, indicating tube control circuit, high-voltage circuits are normal, ruled out the possibility of kinescope system itself failure.