Okay, here is the translation following your instructions: Note: Press Enter to go to a new line (do not translate this part), return as is. All other Chinese text must be translated into English. Title Translation: Plastic Injection Machine Circuit Repair (Second Edition)

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Features: This book introduces the basic knowledge of electronic and electrical circuits, the microcomputer and electrical control systems of injection molding machines, the mechanical, hydraulic, and electrical control of injection molding machines, common troubleshooting methods for robotic arms, injection molding machine maintenance skills, the repair and fabrication of injection molding machine circuit boards, as well as simple devices and debugging methods for testing electronic circuit boards. Injection molding machine circuit maintenance involves a wide range of specialties and high complexity. To accurately diagnose and troubleshoot faults, one must master the operation and calibration of injection molding machines, the principles and wiring of circuit systems, the performance of electrical and electronic components, as well as the working processes of mechanical parts and hydraulic systems. This book compiles the author's years of practical experience and accumulated materials in this field, providing numerous circuit diagrams, wiring diagrams, component location diagrams, and structural diagrams of mechanical and hydraulic components. It includes fault diagnosis processes and maintenance methods and techniques summarized by the author during work, making it an indispensable reference book for those engaged in injection molding machine application and maintenance. To cater to the readership level of this book, the second edition has strengthened the introduction of electronic and electrical component and circuit foundation knowledge, and added information on common machine models. This book is suitable for reference use by injection molding machine maintenance technicians and can also serve as a training textbook for advanced technical workers.