县级电视电话会议设备原理与维护

Principle and maintenance of County level teleconference equipment

电视电话会议的故障具有突发性,维护工作具有及时性和紧迫感强等特点。只有对系统设备的工作原理、信号流程和接线都非常熟悉,才能在故障发生的极短时间内判断和处理故障,保障正在召开的电视电话会议不中断。文章以江苏南京地区县级分会场设备为例,从电视电话会议系统组成、各部分原理和设备特点入手,找出故障易发位置以及故障判断的方法,最后介绍了几例典型故障分析处理过程。

Troubleshooting of teleconference system is a high-demanding task. To prevent the meeting from interuption, faults must be removed in a very short time, which requires very well understanding of operational principles, signal flow and interconnection of equipment and system. Taking the case of teleconference system for Lishui County in the region of Nanjing as an example, this paper introduces the system configuration, principles and features of equipment, indicates the locations of frequent fault occurance and way to analyse faults, and presents the typical process of troubleshooting.