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ＹＸＸ－１型医护信号系统是无锡电子技术应用研究所的产品。该系统由ＹＸＸ－１型主机一台，若于只ＣＨＢ－１床头信号器等部分组成，具有床号请求（报警）及双方通话等功能。其系统框图见下图。１．主机电源指示灯不亮，整个系统不工作。检修：可能的原因：①电源保险丝熔断
The YXX-1 medical care signal system is a product of the Wuxi Institute of Electronic Technology. The system consists of a host YXX-1, if it is composed of only the CHB-1 bed head signal, etc., with a bed number request (alarm) and the two sides talking and other functions. The system block diagram is shown in the figure below. 1. The host power indicator is off and the entire system is not working. Maintenance: Possible causes: 1 The power fuse blows