How to learn electronic circuit to won't check breakdown to do? Old electrician teachs 10 your meth

Personnel of electric power technology knows, the application with wide circuit of electrical engineering electron was in among the control that electric automation and intelligence turn, a bit none exaggerated says: Electronic circuit has very main effect in the development of industrial automation, understanding and familiar and commonly used electronic circuit breakdown are the main demand of staff of work of each electric power, to old electrician, the platoon checks breakdown to may be nodded simply a little, but differred the master worker that studies electronic circuit to firm introduction, facing thickly dotted circuit board, to various electronic circuit element, unavoidable the meeting is dizzy, more do not carry a breakdown that checks electronic circuit, actually the platoon checks breakdown have regular method, the breakdown platoon that mastered appropriate method to be able to let us examines get twice the result with half the effort, the breakdown platoon that we see electronic circuit middling use today with respect to the key investigates a method: