basic knowledge
Understand the performance and function of basic components such as capacitors, resistors, inductors, diodes and triodes. Familiar with the principle and function of oscillation signal generation. Master the principle and practical application of various amplification circuit diagrams. Master the working principle of single chip microcomputer and its application in mobile phone. Master the principle and application of integrated circuits in mobile phones. Master the scientific use of various maintenance tools and instruments.
Mobile network knowledge
Understand all kinds of knowledge of mobile network and the development of various networks. Understand the relationship between network and mobile terminal. Understand the use and function of various functions of mobile phones.
Analysis of mobile phone principle
Master the working principle and fault analysis of common models of Motorola, Nokia, Samsung, Amoi, Eastcom, Bird and Philips. Master the working principle and fault analysis of common CDMA and PHS models. Analyze the examples of mobile phone maintenance and directly master the maintenance methods of common faults.
Practical training
Familiar with soldering iron, skilled in using air gun to remove BGAIC. Familiar with using multimeter to judge and check all kinds of faulty parts. Familiar with BGAIC planting technology. Familiar with all kinds of shell disassembly and replacement methods, and all kinds of cable replacement methods.