🏷️ Basic Information Identification Make: Denon Model: AVR-1601/681 Year: N/A Generation: N/A 📋 Manual Details Description Manual Type: Service Manual Language: English Format: PDF Availability Downloadable: True 🔧 Maintenance Troubleshooting Common Issues: Power supply failures, speaker output issues, audio processing errors Diagnostic Procedures: System self-test, signal path tracing, component testing Repair Replacement Parts: Capacitors, transistors, ICs, power supply modules Cleaning Cleaning Instructions: Dust removal from heatsinks and ventilation, contact cleaning 📄 Product Info Category Product Type: Audio/Video Receiver Features Channels: 5.1 Channel Power Output Per Channel: 80 Watts Surround Sound Formats: DTS, Dolby Digital, Dolby Pro Logic Connectivity Hdmi Ports: 0 Digital Optical Inputs: 2 Digital Coaxial Inputs: 1 Analog Audio Inputs: 5 Component Video Inputs: N/A Composite Video Inputs: 3 Power Power Consumption: N/A Dimensions Width: 434 mm Height: 150 mm Depth: 372 mm Weight Weight: 9.7 kg