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有线电视是个庞大的系统工程,一旦出现故障将影响千家万户,维修技术人员必须及时排除发生的故障,确保系统处于安全、可靠的运行状态之中。笔者将有线电视常见的故障检修实例总结成文,供各地同行作参考。 1.信号源引起的故障信号源的质量是有线电视系统质量的先决条件,一旦其出现故障将危及全系统的信号质量,必须对信号源引起的故障有足够的重视! (1)调制器前信号接收设备的故障。有线电视的信
Cable television is a huge system engineering. Once a fault occurs, it will affect thousands of households. Maintenance technicians must promptly eliminate the fault and ensure that the system is in safe and reliable operation. The author will cable troubleshooting common troubleshooting examples written for colleagues around for reference. 1. Signal source caused by the failure of the quality of the signal source is the quality of the cable system prerequisite for the event of failure of its system-wide signal quality will have to signal the cause of the failure have enough attention! (1) before the modulator Signal receiving equipment failure. Cable letter