This chapter mainly explains
Crystal oscillator parameter identification
Identification of crystal oscillator in the drawing
Common crystal oscillator models and fault phenomena
Judgement and substitution of crystal oscilla
Inductor parameters identification
Inductor types and parameters identification
Inductor quality judgement
Inductor substitution principle
Resistor identification
Parameters and applications of resistors
Applications of resistors
Division, judgment and replacement of resistors
Capacitor identification
Capacitor parameters identification
Capacitor quality judgment
Diodes introduction
Characteristics and working conditions of diodes
Diode code and parameter identification
Judgment and replacement of diodes
Polarities and functions of MOS tube
Conduction conditions, judgment and replacement of MOS tube