Mr. Wang Wenzhong is the founder of Shenzhen Industrial Control Technology Co., Ltd. and also a training course for circuit board maintenance. Mr. Wang Wenzhong is the founder of Shenzhen Industrial Control Technology Co., Ltd. and the lecturer of circuit board maintenance training class.

Mr. Wang has more than 20 years' experience in industrial circuit board maintenance, and has published three best-selling industry books: Deep Mastery of Industrial Circuit Board Maintenance Technology, From Getting Started to Mastering Industrial Circuit Board Chip-level Maintenance, and Color Map of Industrial Circuit Board Chip-level Maintenance. He is one of the few technical experts in the industry who can combine practical technology with theoretical knowledge in circuit board maintenance.

Outline of industrial circuit board maintenance training course: 1, selection and use of circuit board maintenance tools, testing methods and skills of electronic components; 2. Topological structure and maintenance methods of various power supplies; 3. Analysis and maintenance methods of comparator and operational amplifier circuit: 4. Analysis and maintenance of digital logic circuit and single chip microcomputer circuit; 5. Principles and maintenance methods of frequency converters and drivers; 6, circuit board maintenance methods and skills summary, maintenance business discussion and guidance; 7. Instruct the trainees to repair their own circuit boards and answer the technical questions raised by the trainees.