高校有线电视系统无信号现象分析与处理

高校有线电视系统故障影响正常的教学和生活秩序.维持设备的正常运作有着重要意义.通过仪器检修、替换和统计归纳等方法发现"无信号"现象一般有四种情形:整个系统无信号、整个系统收不到某一频道信号、部分用户无信号和个别用户无信号.对于这些故障,正确的维修思路和有效的处理方法可以提高工作效率,并减少故障率.

How to examine the breakdown when the CATV of university has no signal

University cable television system failures affecting the normal teaching and living order.So,to main- tain the normal operation of the equipment is of great significance.Through the repair,replacement and statis- tical methods,we can findno signalfailure including four cases:(a)the entire system without signal;(b)the whole system can not get a signal channel;(c)part of the users had no signal;(d)individual user had no signal. For these failures,the effective ideas of how to repair deal with can increase th...