Denon AVR 900 Service Manual

The Denon AVR 900 is a high-performance audio/video receiver designed for home theater enthusiasts. It supports multiple audio formats, including Dolby Digital and DTS, and features a range of connectivity options for various devices. Below are key sections for safety, features, installation, setup, operation, and troubleshooting.

1. Features at a Glance 2. Installation 3. First-Time Setup 4. Specifications 5. Controls and Settings 6. Connecting Devices 7. Playing Audio/Video Media 8. Accessibility Features 9. Care & Cleaning 10. Regulatory Information 11. Troubleshooting

Features at a Glance

Key components: Multiple HDMI inputs, Dolby Digital and DTS support, built-in AM/FM tuner, remote control, and various audio processing modes.

Feature	Description
HDMI Inputs	For connecting video sources like Blu-ray players and gaming consoles
Audio Formats	Supports Dolby Digital, DTS, and PCM
AM/FM Tuner	Built-in tuner for radio reception
Remote Control	Convenient control of all functions from a distance
Audio Processing Modes	Various modes for enhanced sound experience

Installation

Unpack and inspect contents. Place the receiver on a stable surface.

Connect speakers: Use speaker wire to connect to the appropriate terminals.
Connect video sources: Use HDMI or other inputs for video devices.
Plug into AC power.

WARNING! Ensure all connections are secure to avoid damage.

First-Time Setup

Power on the receiver; follow on-screen prompts to configure settings.

Program channels: Use the remote to access the setup menu.
Set audio preferences: Adjust settings for optimal sound.
Configure video settings: Set resolution and aspect ratio.

CAUTION! Ensure stable surface; avoid overheating.

Specifications

Audio Channels: 5.1 channel surround sound.
Power Output: 100 watts per channel.
Supported Formats: Dolby Digital, DTS, PCM.
Inputs: 4 HDMI, 2 optical, 2 coaxial, 1 USB.
Dimensions: 17.1 x 13.4 x 6.3 inches.
Weight: 22 lbs.
Power Source: 120V AC, 60Hz.

Controls and Settings

Access OSD via remote control. Front Panel: POWER, INPUT SELECTOR, VOLUME.

Remote: POWER, INPUT, VOLUME, MUTE, SETUP.

Audio: Adjust bass, treble, and balance settings. Video: Configure resolution and aspect ratio.

Connecting Devices

Connect devices using HDMI, optical, or coaxial cables.

Turn off the receiver and devices before connecting.
Match cables to ports accordingly.
Select input via remote control.

Tip: Ensure all devices are powered off before making connections.

Playing Audio/Video Media

Supports various audio and video formats.

Insert media: Use appropriate input for playback.
Play: Use remote control to start playback.
Stop: Use STOP button to halt playback.
Skip: Use NEXT/PREV buttons for tracks.

WARNING! Do not force media into the device; eject properly.

Accessibility Features

Closed Captions: Enable in settings menu. Audio descriptions available for select media.

Care & Cleaning

Unplug before cleaning. Use a dry cloth only; avoid liquids.

CAUTION! Do not spray liquids; keep away from heat and moisture.

Regulatory Information

Troubleshooting

Symptom	Possible Cause	Corrective Action
Remote does not work	Obstacles/batteries	Remove obstacles; point at IR sensor; install fresh batteries.
No sound	Connections/mute	Ensure receiver is on; check connections; adjust mute.
Picture not clear	Settings	Adjust video settings in the menu.
Channels not programming	Antenna/menu	Use auto-program in menu; ensure antenna connected.
Media not playing	Media/loading	Ensure media is loaded properly; check for damage.

Reset: Menu > System > Reset if available.

Service: Contact Denon support for assistance.