同洲NV7700机顶盒原理与检修

›› 2012, Vol. 25 ›› Issue (10): 81-.

同洲NV7700机顶盒原理与检修

祁刚

(邳州市广播电视台技术服务中心,江苏邳州 221300)

出版日期:2012-10-15 发布日期:2012-11-29
作者简介:祁刚(1973—),男,工程师。研究方向:广播电视技术。

Working Principle and Recondition of Tongzhou NV7700 STB

QI Gang

(Technology Service Center,Pizhou Radio and Television Station,Pizhou 221300,China)

Online:2012-10-15 Published:2012-11-29

摘要/Abstract

摘要：

同洲NV7700是一种常见的数字电视标清机顶盒,多用于城乡普通有线电视用户,但在使用过程中常出现死机、升级不成功、搜索节目困难等问题。文中从该型机顶盒的原理入手,阐述了该机顶盒的工作原理,并将常见的故障原理进行了分类说明,为日常使用维修提供了参考。

关键词: 机顶盒, 维修, 同洲电子

Abstract:

The NV7700 set-top box is a common digital television SDTV set top box.It is used mainly by urban and rural users.The popularization of digital TV and sharp increase of its market share lead to the frequent occurrence of such problems as TV collapse as well as unsuccessful upgrade and search.This article introduces the principle of the set-top box,elaborates the working principle of two NV7700 set-top boxes,and classifies the common fault principles.It is a reference for the daily use and maintenance of set top boxes.

Key words: STB;maintenance;COSHIP

中图分类号:

TN76

祁刚. 同洲NV7700机顶盒原理与检修[J]. , 2012, 25(10): 81-.

QI Gang. Working Principle and Recondition of Tongzhou NV7700 STB[J]. , 2012, 25(10): 81-.

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