Mobile Phone Principles and Maintenance

Author: Chen Liang
Publisher:
Publish Date: 2004-09-01
Features: This book is compiled based on the National Vocational Skill Qualification Standard "Mobile Phone Repair Technician." The main content includes: basic principles of mobile communication, such as GSM and CDMA communication networks, multiple access technologies, voice coding technologies, modulation and demodulation technologies, SIM cards and UIM cards; basic circuits of mobile phones, such as various basic unit circuits, receiving/transmitting circuits, frequency synthesizers, logic-audio circuits, and power circuits; analysis of the complete circuit of mobile phones, such as the complete circuit analysis of new GSM dual-frequency phones, GPRS phones, and CDMA phones; basic methods of mobile phone repair, such as the use of repair instruments and tools, identification and testing methods of components, and methods of fault analysis and handling; common fault repair techniques for typical GSM, GPRS, and CDMA mobile phones; and an introduction to the circuit analysis, fault analysis, and repair of PHS (Portable Handy System) phones. This book can be used as a teaching material for vocational and technical colleges in communication, applied electronics, and information technology. It can also be referenced by relevant engineering technicians. This book is accompanied by an electronic teaching plan. Teachers who need it can contact the publisher to request it for free. This book systematically introduces the basic principles of mobile communication, the basic circuits of mobile phones, conducts complete circuit analysis of mobile phones, introduces basic repair methods for mobile phones, and provides common fault repair techniques for typical mobile phones.