🏷️ Basic Information Identification Make: Denon Model: AVR-1911 / AVR-791 Year: N/A (Service Manual) Generation: N/A (Service Manual) 📋 Manual Details Description Manual Type: Service Manual / Repair Guide Language: English Page Count: 147 Format: PDF Availability: Instant Download 🔧 Maintenance Cleaning Exterior Cleaning: Wipe with a soft, dry cloth Ventilation: Ensure adequate airflow around the unit 📄 Product Category Classification Category: Home Audio Receiver Subcategory: AV Receiver 📄 Technical Specifications Audio Processing Surround Sound Formats: Dolby Digital, DTS, Dolby Pro Logic II Audio Decoding: DTS-HD Master Audio, Dolby TrueHD Amplification Number Of Channels: 7 Power Output Per Channel: 100W (at 8 ohms) Connectivity Hdmi Ports: 4 HDMI In, 1 HDMI Out Digital Audio Inputs: 2 Optical, 2 Coaxial Analog Audio Inputs: Multiple RCA inputs Usb Ports: 1 (for firmware updates/playback) Networking Ethernet Port: Yes Internet Radio: Yes Video Processing Video Upscaling: Yes (up to 1080p) Power Consumption Typical Power Consumption: Approx. 400W Dimensions Width: 434 mm Height: 171 mm Depth: 387 mm Weight: 10.8 kg 📄 Troubleshooting Common Issues No Sound: Check speaker connections, input selection, and volume levels No Video: Verify HDMI connections and ensure correct input is selected on TV Unit Turns Off Automatically: Check for overheating, ensure proper ventilation, or potential power supply issue