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41.XTV-ZHD54系列医用摄像机故障现象1:主、副监视器荧光屏均无图像。故障原因:摄影机扫描电路:测IC1⑧、⑨脚无脉冲信号输出,查双D触发器IC1(74LS74)内部不良。
41. XTV-ZHD54 Series Medical Camera Failure Symptom 1: The main and sub monitor screens have no image. Cause of failure: Camera scan circuit: Test IC18, 9-pin no pulse signal output, check double D flip-flop IC1 (74LS74) internal bad.