Denon AVR-486 User Manual (English)

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Questions and Answers:

M
martinmariaJul 29, 2025
Why is my Denon AVR-486 display lit but no sound is produced?
- C
  Clifford WatkinsJul 29, 2025
  There are several possible reasons: * The speaker cables might not be securely connected, so ensure they are. * The INPUT SELECTOR knob could be improperly set; adjust it to a suitable position. * The volume control might be set to minimum; increase the volume to a suitable level. * MUTING may be activated; switch it off. * If you've selected digital input, ensure digital signals are being input, or select the correct input terminals.
L
Larry SchwartzAug 3, 2025
How to fix a Denon AVR-486 Stereo Receiver when the display is not lit and no sound is produced?
- T
  Thomas RuizAug 3, 2025
  First, ensure the power supply cord is securely plugged in. If that doesn't work, turn the POWER switch on and then use the remote control to turn the power on.
D
denise12Aug 8, 2025
How to stop howling noise when volume is high on Denon AVR-486?
- M
  moorejimmyAug 8, 2025
  Howling noise at high volumes can occur if the speaker systems are too close together; try separating them as much as possible. Also, if the floor is unstable and vibrates easily, use cushions to absorb speaker vibrations transmitted by the floor.
J
Jason RodriguezAug 13, 2025
What to do if the display is not lit and the power indicator is flashing rapidly on my Denon AVR-486?
- A
  anthonyjonesAug 13, 2025
  This usually indicates a problem that requires immediate attention. The issue could be: 1. Speaker terminals are short-circuited: Switch the power off, connect the speakers properly, and then switch the power back on. 2. The ventilation holes are blocked: Turn off the power, ventilate well, and allow the unit to cool down before turning it back on. 3. The unit is operating at continuous high power with inadequate ventilation: Turn off the power, ventilate well, and allow it to cool before turning it back on.
S
Scott BrownAug 18, 2025
Why is sound only produced from one channel on my Denon AVR-486?
- J
  Jared HoffmanAug 18, 2025
  This issue typically arises from incomplete connections. Check that both the speaker cables and the input/output cables are securely connected.
S
Shawn AguirreAug 23, 2025
What causes instruments to sound reversed during stereo playback on my Denon Stereo Receiver?
- P
  patelsamanthaAug 23, 2025
  This problem is likely due to reversed connections of either the left and right speakers or the left and right input/output cables. Check these connections to ensure they are correct.

Denon AVR-486 Specifications

General

Brand	Denon
Model	AVR-486
Category	Stereo Receiver
Language	English

Summary

Safety Precautions

General Safety Warnings

Covers CAUTION and WARNING statements regarding electrical hazards and environmental exposure.

Safety Instructions

Numbered list of essential safety guidelines for operating the product safely and correctly.

System Setup

Speaker Configuration

Set speaker types and sizes for optimal signal composition and frequency response.

Delay Time

Input speaker distances to set the delay time for accurate surround playback timing.

Setting the Speaker Configuration

Set speaker types and sizes for optimal signal composition and frequency response.

Subwoofer Mode and Crossover Frequency

Configure subwoofer operation and set the frequency below which bass signals are sent to the subwoofer.

Setting the Delay Time

Input speaker distances to set the delay time for accurate surround playback timing.

Test Tone

Adjust playback levels between channels for equal volume output.

Setting Speaker Parameters

Configure surround back speaker settings and subwoofer presence for optimal surround effects.

Digital In Assignment

Assign digital input terminals (Coaxial, Optical) for different input sources.

Setting the Subwoofer Mode and Crossover Frequency

Configure subwoofer operation and set the frequency below which bass signals are sent to the subwoofer.

Auto Surround Mode

Set the unit to automatically select the surround mode based on the last used input signal.

Setting the Test Tone

Ext. In Subwoofer Level

Set the playback level for analog input signals connected to the EXT. IN terminal.

Setting the Digital In Assignment

Power Amp Assignment

Switch the power amplifier for the surround back channel to ZONE2 use.

Setting the Auto Surround Mode

Setting the Ext. In Subwoofer Level

Setting the Power Amp Assignment

Easy Operation

Basic System Layout

Speaker Connections

Detailed instructions on how to connect speaker systems to the receiver terminals.

Speaker Impedance and Protection

Explains speaker impedance requirements and the unit's protection circuit function.

Connecting a DVD Player and Monitor TV

Connecting the Power Supply Cord

Turning On the Power

Playing the Input Source

Select the audio or video source to be played and choose the desired surround mode.

Selecting Play Modes

Explains how to choose between different playback modes like STEREO, DIRECT, or surround modes.

Basic Operation

Playback

Select input source, surround mode, start playback, and adjust volume levels.

Playback Using External Input Terminals

Input Mode Selection

Selecting AUTO, PCM, and DTS Modes

Selecting Analog Mode

Surround Playback Modes

Direct and Stereo Modes

Dolby Pro Logic IIx Mode

Detailed setup and parameter adjustment for Dolby Pro Logic IIx surround sound.

DTS NEO:6 Mode

Configuration and parameter settings for DTS NEO:6 surround sound playback.

Surround Parameter Settings

Surround Parameter Controls

DENON Original Surround Modes

Surround Modes and Their Features

DSP Surround Simulation

Channel Level Adjustment

Troubleshooting

Common Troubleshooting Issues

Addresses problems like sound distortion, remote control failure, display errors, and connection issues.

Additional Information

Optimum Surround Sound for Different Sources

Dolby Digital Compatible Media and Playback

Information on media compatible with Dolby Digital and how to play them.

Dolby Pro Logic II

Details on Dolby Pro Logic II technology and its multi-channel playback capabilities.

DTS Digital Surround

Explanation of DTS digital surround format and its playback characteristics.

DTS Compatible Media and Playback Methods

Information on media compatible with DTS and playback procedures.

DTS-ES Extended Surround

Overview of DTS-ES Extended Surround format and its features.

DTS Neo:6 Surround

Explanation of DTS Neo:6 surround modes for 6.1 channel playback.

DTS 96/24

Details on DTS 96/24 format for high-resolution audio playback.

Surround Modes and Parameters Overview

Specifications

Audio Section Specifications

Detailed specifications for the power amplifier, input sensitivity, and frequency response.

Tuner Section Specifications

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