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管理、维护人员除要熟悉卫星电视接收系统与有线数字机顶盒的基本原理外,还应对接收系统与机顶盒出现的各种故障作出正确分析、判断,迅速查出故障部位,及时排除故障。一、卫星电视接收系统的检修基本方法1.检修卫星电视接收系统的一般步骤卫星电视接收系统出现故障以后,要根据故障现象,确认故障发生在室外单元还是室内单元,然后按照“先观察后测量,先重点后一般,先主要部位后一般部位”的原则进行检修,卫星电视接收系统的一般检修步骤主要有如下几种。
In addition to being familiar with the basic principles of satellite TV receiving systems and cable digital STBs, management and maintenance personnel should also correctly analyze and judge the various faults that occur on the receiving system and the set-top box, quickly detect the fault location and promptly eliminate the fault. First, the basic methods of satellite TV reception system maintenance 1. General steps to repair satellite TV reception system Satellite TV reception system failure, according to the failure phenomenon, to confirm the failure occurred in the outdoor unit or indoor unit, and then follow the “first observation Measurement, the first focus after the general, the first part of the general position after the main part of the ”overhaul, satellite TV receiving system, the general inspection steps are as follows.