来电显示电话机和对讲机的装配调试.docx

来电显示电话机和对讲机的装配调试（陕西理工学院物理与电信工程学院通信1201班，陕西 汉中 723001）指导教师：龙光利 [摘 要]学习对讲机和来电显示电话机的工作原理,了解整机安装的一般 步骤,并掌握焊接元件的操作程序.对讲机就是把从天线接收到的高频信号经检波还原成音频信号,送到耳机变成音波。电话通信是实现声能与电能相互转换的用户设备。由送话器、受话器和发送、接收信号的部件组成。发话时，由送话器 把话音转换成电信号，沿线路发送到对方；受话时，由受话器把接收到的电信号还原成话音。本次实习完成了对讲机和来电显示功能的电话机的装配，并能正常工作。本次试验通过单人单组装配一台对讲机和来电显示功能的电话机，焊接调试，排除遇到的故障。[关 键 词]?对讲机；显示电话机；焊接[中图分类号]TN858 [文献标志码]AAssembly and commissioning of telephone caller ID and walkie talkie(Grade12,Class1,Major of Communication Engineering，School of Physics and telecommunicationEngineering of Shaanxi University of Technology, Hanzhong 723001,China)Tutor:Long Guangli[Abstract]Learning radio and telephone caller ID works, to understand the general steps to install the machine and a welding torch component of operating procedures. Radio is the high frequency from the antenna to restore the audio signal by the detector signal to the headphones into Sound waves. Telephone communication is to achieve sound energy and energy conversion of the user equipment. By the transmitter, receiver and transmit, receive signal components. Speaker, by the transmitter converts the voice signal, is sent to each other along the way; by words, by the receiver to restore the received voice signal. The internship completed radio and telephone caller ID function of the assembly, and can work properly. Through this experiment, one group assembled for a single radio and telephone caller ID function, weld testing, preclude the failure encountered.[Key words]?radio; telephone; welding目录1. 绪 论11.1课题背景11.2电话机的简介及发展历史11.3收音机的简介及发展简史22. 焊接技术简介42.1焊料与焊剂42.2焊锡机理42.3手工烙铁焊剂技术53. 来电显示和电话机的装配73.1 对比元器件清单核对元器件数目及规格73.2 元器件的插装73.3来电显示和电话机的原理73.4 来电显示电话的组装及调试93.4.1 来电显示电话机的组装93.5 总装113.6 来电显示电话的调试114. 对讲机的装配124.1 对照元器件清单核对元器件124.2 识别各种元器件以及其作用124.3 对讲机调频调幅的工作原理134.3.1 对讲机原理134.3.2 FM工作原理144.4 对讲机的组装144.5 调试144.5.1 调整静态工作点144.5.2 调整中频频率154.5.3 统调154.5.4 调整频率范围154.5.5 各主要元器件的常见故障排除15总 结17致 谢19参考文献19附 录20附录一：收音、对讲机材料清单20附录二：电话机材料清单21附录三：收音机电原理图23附录四：收音机印制板及连线示意图24附录五：电话机