SANSUI AU-D33 AU-D22 Service Manual

Introduction: Welcome to the official service manual for the SANSUI AU-D33 and AU-D22 integrated amplifiers. This comprehensive manual is meticulously crafted to provide technicians and service personnel with detailed information essential for diagnosing, repairing, and maintaining these classic audio amplifiers. With comprehensive schematics, troubleshooting procedures, and step-by-step repair instructions, this manual serves as an indispensable resource for ensuring optimal performance and longevity of the SANSUI AU-D33 and AU-D22 models.

Chapter 1: Introduction to SANSUI AU-D33 & AU-D22 Integrated Amplifiers

• Overview: Detailed description of the features, specifications, and design ethos behind the SANSUI AU-D33 and AU-D22 amplifiers.
• Technical Specifications: Comprehensive listing of technical specifications including power output, frequency response, and harmonic distortion.

Chapter 2: Installation and Setup

• Installation Guidelines: Step-by-step instructions for proper installation and setup of the integrated amplifiers, including connections to speakers and audio sources.
• Electrical Connections: Guidance on electrical wiring, grounding, and connection to power sources.

Chapter 3: Operation and Maintenance

• Operating Instructions: Detailed guide on operating the integrated amplifiers, including input selection, tone controls, and volume adjustment.
• Maintenance Schedule: Recommendations for routine maintenance tasks to ensure optimal performance and reliability.
• Cleaning and Care: Instructions for cleaning the exterior and interior components of the amplifiers to prevent dust accumulation and ensure proper ventilation.

Chapter 4: Troubleshooting and Diagnosis

• Troubleshooting Guide: Comprehensive list of common issues, symptoms, and potential causes.
• Diagnostic Procedures: Step-by-step instructions for diagnosing problems using test equipment and troubleshooting techniques.
• Error Code Reference: Explanation of error codes and indicators, along with recommended solutions.

Chapter 5: Disassembly and Repair

• Disassembly Instructions: Detailed procedures for disassembling the amplifiers for repair or component replacement.
• Component Replacement: Step-by-step instructions for replacing major components such as transistors, capacitors, and potentiometers.
• Assembly Guidelines: Guidance on reassembling the amplifiers after repair or maintenance tasks.

Chapter 6: Circuit Diagrams and Schematics

• Circuit Diagrams: Detailed schematics and circuit diagrams for each section of the amplifiers, including the preamplifier, power amplifier, and protection circuitry.
• Component Layout: Visual representation of the layout and connections of internal components.

Chapter 7: Parts List and Exploded Views

• Parts Identification: Comprehensive parts list with part numbers, descriptions, and illustrations.
• Exploded Views: Detailed diagrams showing the assembly of the amplifiers and the relationship between components.