This comprehensive service manual provides detailed technical information for the Onkyo DX-3800 audio receiver. The manual includes schematics, block diagrams, component layouts, part numbers, troubleshooting guides, and repair procedures. It covers all aspects of the receiver's operation, including its power supply, amplifiers, tuners, and audio processing circuitry. Whether you are a professional technician or an experienced DIY enthusiast, this manual is an essential resource for understanding and repairing the Onkyo DX-3800. With its detailed diagrams and clear instructions, this manual will equip you with the knowledge and tools necessary to diagnose and resolve any issues that may arise with your receiver.