中国地质大学长城学院
本 科 课 程 设 计
题 目:
模拟电子课程设计
星源919型6管超外差收音机
信息工程系 宋思雨
系 别 学生姓名
专 业 电气工程及其自动化 学 号 指导教师 职 称
04311433 李建勋 高级工程师
2013年 06 月 30 日
模拟电子课程设计
摘 要
现今社会飞速发展，身为学生，我们不能只会用，也要了解它如何工作和维修 通过焊接收音机，我们可以了解它的内部并且掌握它，所以老师布置了我们焊接收的作业。音机电子领域中各种新型电子产品，已经悄然走进千家万户，与人类生活越来越近。作为电气专业的老师和学生不仅要对模拟电子产品的使用和性能要有基本的了解和掌握，更要对其的结构、工作原理、甚至调试和维修也要能初步地掌握。
关键词：模拟电子；元器件；收音机；超外差收音机
ABSTRACT
Nowadays the electronic product is fast developing. And as a student we should not only know how to use it but also know how it work and how to maintain it.
By welding a electronic product we can comprehend the internal of electronic product so teacher let us weld a radio. by welding the radio we practice our manipulative ability and can master the handwork welding technique, let us Complete the simple
electronic product installation, and comprehend the type of the electronic、performance, and the way to maintain it
Key words：Analog Electronics; Standee Radio stet; Radio; Super-heterodyne Radio Set
目 录
ABSTRACT ........................................................................................................................................... 1.课程设计内容 ...................................................................................................................................
1.1设计题目.................................................................................................................................. 1.2设计目的.................................................................................................................................. 1.3设计要求.................................................................................................................................. 1.4主要元器件 ............................................................................................................................. 1.5主要工具、器材： ............................................................................................................... 2.收音机的原理及PCB板电路图 ..................................................................................................
2.1电路原理图 ............................................................................................................................. 2.2超外差收音机的工作原理 .................................................................................................. 3.超外差式收音机的设计 .................................................................................................................
3.1主要元件识别及功能描述 .................................................................................................. 3.2设计过程描述......................................................................................................................... 4.故障排除以及调试 .......................................................................................................................... 4.故障排除以及调试 ..........................................................................................................................
4.1检查电路.................................................................................................................................. 4.2 收音机的调试 ....................................................................................................................... 5.心得体会 ............................................................................................................................................