🏷️ Basic Information Identification Make: Denon Model: AVR-1909, AVR-789, AVC-1909 Year: Not Specified Generation: Not Specified 📋 Manual Details Document Information Manual Type: Service Manual & Repair Guide Language: English Page Count: 161 Format: PDF Delivery Download Availability: Instant Download ⚙️ Engine Specifications Audio Processing Amplifier Type: AV Surround Receiver Channels: 7.1 Channel Surround Power Output Per Channel: 120 Watts (6 ohms, 1 kHz, 0.7% THD) Frequency Response: 10 Hz - 100 kHz (+0 dB, -3 dB) Signal To Noise Ratio: 100 dB (IHF-A) Digital Audio Decoding: Dolby TrueHD, Dolby Digital Plus, Dolby Digital EX, DTS-HD Master Audio, DTS ES, DTS 96/24, Cinema DSP Connectivity Hdmi Ports: 4 In / 1 Out (HDMI 1.3a with Deep Color, x.v.Color, CEC) Component Video Inputs: 3 In / 1 Out Digital Audio Inputs: 2 Optical, 2 Coaxial Analog Audio Inputs: Multiple RCA Inputs 🔧 Transmission Internal Operation Processing Architecture: DSP (Digital Signal Processing) Analog To Digital Conversion: 24-bit/192kHz DAC Digital To Analog Conversion: 24-bit/192kHz DAC 📐 Dimensions Physical Size Width: 17.1 inches Height: 6.7 inches Depth: 16.5 inches Weight: 24.3 lbs 🔧 Maintenance Cleaning Cleaning Recommendation: Use a soft, dry cloth; avoid abrasive cleaners Ventilation Ventilation Requirements: Ensure adequate ventilation to prevent overheating Troubleshooting Common Issues Covered: Power issues, audio distortion, connection problems, remote control malfunctions Diagnostic Tools Required Tools: Basic electronics tools (multimeter, soldering iron, screwdrivers)