Denon AVR-485 Service Manual

The Denon AVR-485 is a high-performance audio/video receiver designed for home theater enthusiasts. It features advanced processing capabilities, multiple audio formats, and a variety of connectivity options to enhance your entertainment experience. 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: Multi-channel amplifier, HDMI inputs, digital audio processing, remote control, and various audio formats support.

Feature	Description
HDMI Inputs	For connecting high-definition video sources
Multi-channel Amplifier	Delivers powerful audio output for immersive sound
Digital Audio Processing	Supports various audio formats including Dolby Digital and DTS
Remote Control	Convenient control of all functions from a distance
Zone 2 Output	Allows audio playback in a separate room

Installation

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

Connect speakers: Use appropriate speaker wire for connections.
Connect video sources: Use HDMI or composite inputs as needed.
Plug into AC power.

WARNING! Ensure all connections are secure to avoid damage.

First-Time Setup

Power on the receiver; follow on-screen prompts for initial configuration.

Program channels: Use the setup menu to scan for available channels.
Set audio preferences: Adjust settings for optimal sound quality.
Configure video output: Set resolution and aspect ratio according to your display.

CAUTION! Ensure stable surface; avoid overheating.

Specifications

Power Output: 100W per channel (8 ohms).
Audio Formats: Supports Dolby Digital, DTS, PCM.
HDMI Version: HDMI 1.3 with 3 inputs and 1 output.
Weight: 20 lbs.
Dimensions: 17.1 x 13.4 x 5.9 inches.
Power Consumption: 350W (maximum).

Controls and Settings

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

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

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

Connecting Devices

Connect video sources via HDMI or composite inputs. Connect audio sources using optical or coaxial cables.

Turn off the receiver and devices before connecting.
Match cables to ports accordingly.
Select input via the 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 the appropriate input for your media source.
Play: Use the remote control to start playback.
Stop: Press STOP to halt playback.
Skip: Use the NEXT/PREV buttons to navigate tracks.

WARNING! Do not force connections; handle media with care.

Accessibility Features

Closed Captions: Enable in the setup menu. Audio descriptions available for supported content.

Care & Cleaning

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

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

Regulatory Information

FCC Part 15: Class B digital device; complies with interference limits for residential use. For support, visit www.denon.com or contact customer service.

Troubleshooting

Symptom	Possible Cause	Corrective Action
Remote does not work	Obstacles/batteries	Remove obstacles; replace batteries.
No sound	Connections/mute	Check connections; ensure mute is off.
Picture not clear	Settings	Adjust video settings for clarity.
Channels not programming	Antenna/menu	Use auto-program in menu; check antenna connection.
Device not responding	Power issue	Unplug and replug the device.

Reset: Menu > System > Reset if available.

Service: Contact customer support for assistance.