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有线电视机顶盒是电视数字化和因特网快速发展基础上出现的以电视机为显示终端的,能够处理和接收数字信息的设备。近年来,电视数字化的趋势明显增强,数字电视凭借其强大优越性深受用户青睐。数字电视机顶盒将实现模拟电视向数字电视的过渡,而有线电视机顶盒将成为我国数字电视机顶盒中的主导产品。因此,对有线数字电视机顶盒的分析与研究具有重要的实际意义。本文从有线电视机顶盒的基本原理入手,简单分析了现阶段机顶盒常出现的故障,提出了一系列的保养措施。
Cable TV set-top boxes are devices that can handle and receive digital information by presenting the television as a display terminal based on the rapid development of television digitization and the Internet. In recent years, the trend of digital television has been significantly enhanced, digital television by virtue of its strong superiority favored by users. Digital TV set-top box will achieve the transition from analog TV to digital TV, and cable TV set-top box will become the leading product in China’s digital TV set-top box. Therefore, the analysis and research of cable digital TV set-top box has important practical significance. This article starts with the basic principle of cable TV set-top boxes, briefly analyzes the faults that often appear in set-top boxes at this stage, and proposes a series of maintenance measures.