电脑主板开机电路的检测及维修毕业论文.doc

毕 业 论 文 电脑主板开机电路的检测及维修 姓 名： 黄楚葵 学 号： 206320103 指导老师： 肖忠良 系 名： 电子信息工程系 专 业： 计算机系统维护 班 级： 06计维大一 二零零八 年 十二月 十 日 摘要 21世纪随着科学技术的飞跃发展，互联网以成为个人、企业、国家生存的重要组成部分，伴随而来的是电脑的普及，电脑主板使用的大众化。但随之而来的电脑主板故障却成为许多电脑爱好者的烦脑。与此同时主板维修技术也成为一个逐渐升温的技术领域，在此基础上主板维修开始像电脑一样开始新一轮的技术普及，首先主板维修可分为：开机电路维修、CPU无主电源供电电路维修、时钟电路维修、复位电路维修、接口类故障维修等五部分。本文介绍的是主板维修当中最基础也是必不可少的电路维修那就是开机电路维修。 论文首先对什么是主板？对主板的分类、组成进行具体的分析，使我们更加了解主板有利于下面对主板的分析及维修。接着，对主板上常见元器件的作用好坏判断及替换原则进一步分析有利于我们在维修过程当中故障的判断和替换。接下来对主板开机电路的组成、原理及维修实例进行具体的图文分析，使我们了解什么是主板开机电路？它是怎么工作的以及维修当中我们要注意些什么？其维修的工作流程是什么？明确了这些步骤可以让我们在日常生活中可以自己解决一些主板中出现的常用故障，使我们在学习、工作可以充分的利用电脑的各项功能为我们服务。 论文主要介绍了本课题的背景，电脑开机电路的具体分析与维修过程，重点分析开机电路的分类、组成、工作原理以及故障实例的检修。 关键词：主板维修、开机电路、时钟电路、复位电路、接口类故障 Abstract 21 With the rapid development of science and technology, the Internet has become to individuals, businesses, the survival of the country an important part of it is accompanied by computers, computer motherboard used by the mass. However, the resulting computer motherboard failure of many computer enthusiasts are tired of the brain. At the same time, board maintenance technology as a gradual warming of the technology on the basis of which started as a computer motherboard repair as the beginning of a new round of the popular technology, first of all main board maintenance can be divided into: maintenance boot circuit, CPU without the main power supply Circuit maintenance, repair circuit clock, reset circuit maintenance, repair, and other interface types of failure in five parts. In this paper, the board is among the most basic maintenance is essential for the maintenance of the circuit that is maintenance-boot circuit. This article first of what is the motherboard? On the classification board to form the specific analysis, our board will help to better understand the following analysis on the main board and maintenance. Then, on the main board on the role of common c