单片机电路板焊接实习报告.pdf

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1、机械与车辆学院电子工艺实习报告（2010-2011学年第一学期）实习题目：GWL-100 单片机学习开发板的制作姓名：李*学号：080402021036班级：08 交通 2 班指导老师：赵*实习时间：12 月 6 日12 月 12 日成绩：一：实习目的目前单片机上网技术是一个热门技术，很多高校学生选择与此相关的毕业设计，同时高校也有与此相关的项目。通过对一只正规产品GWL-100 单片机学习开发板的安装、焊接、调试、了解电子产品的装配全过程，训练动手能力，掌握元器件的识别，简易测试，及整机调试工艺，从而有助于我们对理论知识的理解，帮助我们学习专业的相关知识。培养理论联系实际的能力，提高分析解决

2、问题能力的同时也培养同学之间的团队合作、共同探讨、共同前进的精神。本周实习具体目的如下：1、学习并掌握 Protel 99 SE软件，在实操过程中能灵活使用该软件。2、熟悉手工焊锡的常用工具的使用及其维护与修理。3、基本掌握手工电烙铁的焊接技术，能够独立的完成简单电子产品的安装与焊接。熟悉电子产品的安装工艺的生产流程。4、熟悉常用电子器件的类别、型号、规格、性能及其使用范围。5、了解电子产品的焊接、调试与维修方法。二：实习内容和要求实习内容:1、对照原理图讲述整机工作原理；2、对照原理图看懂装配接线图；3、了解图上符号，并与实物对照；4、根据技术指标测试各元器件的主要参数；5、讲解焊接的操作方

3、法和注意事项；6、焊接练习；7、分发与清点零件；文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 Z

4、R9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档

5、编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T

6、4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7

7、 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3

8、文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A

9、7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q38、万用表的工作原理及其分类；9、讲解元器件的类别、型号、使用范围和方法以及如何正确选择元器件。10、讲解如何使用工具测试元器件11、组装、焊接与调试GWL-100 单片机学习开发板实习要求:熟悉运用 Protel

10、99 SE软件，学习理解并绘制万用表电原理图，认真细致地安装焊接，排除安装焊接过程中出现的故障以在规定时间内完成正规GWL-100 单片机学习开发板的安装、焊接、调试及使用。1、了解 GWL-100 单片机学习开发板特点和发展趋势。2、熟悉万用表装配技术的基本工艺过程。3、认识液晶显示器件。4、根据技术指标测试数字万用表的主要参数。5、安装制作 GWL-100 单片机学习开发板。三：实习设备及材料(1)电烙铁：由于焊接的元件多，所以使用的是外热式电烙铁，功率为30 w，烙铁头是铜制。(2)吸锡工具，镊子，螺丝批等必备工具。(3)锡丝：由于锡它的熔点低，焊接时，焊锡能迅速散步在金属表面焊接牢固，

11、焊点光亮美观。GWL-100 单片机学习板的主要硬件资源有：1）8路高亮 LED 发光管可做交通灯、流水灯、信号输出指示等实验。2）4位一体集成 LED 数码管可做动态扫描及静态显示实验，做时钟、温度、数值显示等实验。3）8个独立按键键盘检测、按键控制实验。4）蜂鸣器模块可做各种发声、音乐、闹钟提醒及报警实验。文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D

12、2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2

13、R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:C

14、M7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU

15、1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9

16、O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码

17、:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4

18、HU1D2D6N6E7 ZR9O2R4O10Q35）一路继电器继电器是工控最常用器件之一，可以弱电控制强电器件，系统留有2路断闭触头输入输出接口，可方便对接外部可控信号的输入和输出。6）DS18B20 温度传感器可做温度测量显示和温度检测控制器等实验。7）DS1302 时钟芯片可做万年历、定时器、闹钟等。8）EEPROM芯片AT24C02 可学习I2C总线的读写、12C 总线的程序编写、可存储数据的存取。9）一体化红外线遥控接收头可练习编写单片机的精确延时程序，可以做红外线解码实验、红外遥控实验（键值显示、遥控开关、红外线遥控器等。）10）字符显示接口 LCD1602液晶显示模块可显示两行字符

19、，可实现字符移动、闪烁显示。11）文字图形显示接口 LCD12864液晶显示模块可显示英文、中文汉字、图形及图片。12）ISP接口支持AT公司的下载线，可以在线烧写多种 MCU 程序，无需拔下芯片即可把程序固化到 MCU 内部的 EEPROM中，支持多种品牌芯片在线烧写。13）MAX232 串口通讯模块可以与计算机串行通信，同时也可对STC单片机下载程序，还可以实现主从系统中多机互连，一口多用。其他元件包括以下(1)电烙铁：由于焊接的元件多，所以使用的是外热式电烙铁，功率为30 w，烙铁头是铜制。(2)螺丝刀、镊子等必备工具。(3)锡丝：由于锡它的熔点低，焊接时，焊锡能迅速散步在金属表面焊接牢

20、固，焊点光亮美观。(4)电路板上的元件：二极管，三极管，电阻（排阻），电容（瓷片电容、电解电容），晶振，电位器，按键，数码管，自锁开关，USB 座，电源座，串行口，蜂鸣器，继电器，芯片，红外线收头，ISP 下载座,单双排插针，芯片插座，跳线帽，USB电源器，串口线等等。文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文

21、档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7

22、T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E

23、7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q

24、3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5

25、A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N

26、6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O1

27、0Q3四：设计原理分析GWL-100 是一款具有编程、设计、调试、ISP下载等功能的单片机学习系统，可以支持 ATMEL 89S 系列、89C 系列等以 51为内核的单片机编程和实验。GWL-100全面适应和满足初学者的需求，可以使初学者在最短的时间里掌握单片机的基本编程、设计、调试等开发技术。同时也是工程开发技术人员开发产品和项目的好帮手，是一款功能强、扩展方便的学习单片机应用技术和调试开发的好工具。系统功能特点GWL-100 学习板上集成了丰富的实验硬件资源和常用的接口电路：LED、数码管、字符显示、汉字及图像显示接口、键盘接口、串口通讯、串行FLASHI2C 读写、蜂鸣器、继电器、温度传

28、感器、红外遥控、电源电路，另外还可以扩展各种功能模块。具体各零件有着其特殊功能，如蜂鸣器，单片机工作电压为5V。一般使用USB接口供电，直接从USB 接口获取 5V电源。当电压小于下限电压值或大于上限电压值时，蜂鸣器将报警。其他如加一个11.0592MHZ的晶振是为了以后做串口通信时和 PC有相同的波特率。可用短路帽切换。在板上除了最小系统外还有键盘输入、数码管、LCD、I2C 存储器。它们的数据接口和电源接口也是完全独立的。其它的功能都准备在以后通过上方的接口另外用板子扩展。文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 H

29、U1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR

30、9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编

31、码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4

32、 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7

33、ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文

34、档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7

35、T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3电路板的正面如图：在该电路板是接上相应的零件和芯片就可以实现跑马灯和计数等功能了。五：原理图LED灯电路连接文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7

36、T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E

37、7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q

38、3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5

39、A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N

40、6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O1

41、0Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7

42、Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3按键电路设计更多其他功能电路图如下：文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:

43、CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 H

44、U1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR

45、9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编

46、码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4

47、 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7

48、ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3文档编码:CM7V7Z5A7T4 HU1D2D6N6E7 ZR9O2R4O10Q3六：焊接过程装配工作中，焊接技术很重要。万用表元件的安装，主要利用锡焊，它不但能固定零件，而且能保证可靠的电流通路，焊接质量的好坏，将直接影响收音机质量。1、烙铁是焊

49、接的主要工具之一，焊接收音机应选用30W-35W 电烙铁。新烙铁使用前应用锉刀把烙铁头两边修改成如（图1-1）所示形状。并将烙铁头部倒角磨光，以防焊接时毛刺将印刷电路板焊盘损坏。如采用长命烙铁头（图1-2）则无须加工。烙铁头上沾附一层光亮的锡，烙铁就可以使用了2、烙铁温度和焊接时间要适当焊接时应让烙铁头加热到温度高于焊锡溶点，并掌握正确的焊接时间。一般不超过 3 秒钟。时间过长会使印刷电路板铜铂跷起，损坏电路板及电子元器件。3、焊接方法一般采用直径 1.0-1.2mm 的焊锡丝。焊接时左手拿锡丝，右后拿烙铁。在烙铁接触焊点的同时送上焊锡丝，焊锡的量要适量。太多易引起搭焊短路，太少元件又不牢固。

50、焊接时不可将烙铁头在焊点上来回移动或用力下压，要想焊得快，应加大烙铁和焊点的接触面。增大传热面积焊接也快。特别注意的是温度过低烙铁与焊接点接触时间太短，热量供应不足，焊点锡面不光滑，结晶粗脆，象豆腐渣一样，那就不牢固，形成虚焊和假焊。反之焊锡易流散，使焊点锡量不足，也容易不牢，还可能出现烫坏电子元件及印刷电路板。总之焊锡量要适中，即将焊点零件脚全部浸没，其轮廓又隐约可见。焊点焊好后，拿开烙铁，焊锡还不会立即凝固，应稍停片刻等焊锡凝固，如未凝固前移动焊接件，焊锡会凝成砂状，造成附着不牢固而引起假焊。焊接结束后，首先检查一下有没有漏焊，搭焊及虚焊等现象。虚焊是比较难以发现的毛病。造成虚焊的因素很多