🏷️ Basic Information Identification Make: Denon Model: AVR-3803/1083/AVC-3570 Year: Unknown Generation: N/A 📋 Manual Details Documentation Manual Type: Service Manual Language: English Page Count: Unknown Format: PDF Availability: Downloadable Content Intended Audience: Technicians and Repair Professionals Scope: Repair, troubleshooting, schematics, parts 🔧 Maintenance Troubleshooting Common Issues: Power supply failures, sound distortion, no audio output Diagnostics Diagnostic Modes: Self-diagnostic functions accessible via service menu Repair Key Components: Power supply board, main DSP board, amplifier output stages 📄 Technical Specs Audio Processing Decoder Formats: Dolby Digital EX, DTS-ES Discrete 6.1, DTS Neo:6, Dolby Pro Logic IIx Surround Modes: Numerous virtual surround modes Amplification Channels: 7.1 Power Output Per Channel: 120W (at 8 ohms, 20 Hz-20 kHz, THD 0.05%) Connectivity Digital Inputs: Coaxial, Optical Analog Inputs: Component, Composite, S-Video, RCA Hdmi Ports: None (for these models) Pre Outs: 7.1 channel pre-outs Video Processing Video Upscaling: Analog to Component (likely) Video Conversion: Composite/S-Video to Component Networking Ethernet: No Wi Fi: No