Denon AVR-688 Manual PDF

The Denon AVR-688 is a versatile 7.1 channel AV receiver designed to deliver high-quality audio and video performance. It supports various audio formats, including Dolby Digital, DTS, and more, providing an immersive home theater experience. The receiver features multiple HDMI inputs, allowing for easy connectivity with various devices, and includes advanced features such as Audyssey room correction, which optimizes sound based on your room's acoustics. 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: 7.1 channel surround sound, multiple HDMI inputs, Audyssey room correction, remote control, and various audio format support.

Feature	Description
HDMI Inputs	Multiple inputs for connecting various devices
Audyssey Room Correction	Optimizes sound based on room acoustics
Dolby Digital & DTS Support	Supports various audio formats for immersive sound
Zone 2 Output	Allows for multi-room audio setup
On-Screen Display	Easy navigation through settings and options
Remote Control	Convenient control of receiver functions

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 component video cables.
Plug into AC power.
Connect to TV: Use HDMI output for video connection.

WARNING! Ensure all connections are secure to avoid damage.

First-Time Setup

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

Set up speakers: Use the Audyssey setup microphone for calibration.
Configure inputs: Assign names to HDMI inputs for easy identification.
Adjust audio settings: Use the menu to set audio preferences.

CAUTION! Ensure stable surface; avoid overheating.

Specifications

Channels: 7.1 channel surround sound.
Power Output: 75 watts per channel (8 ohms).
HDMI Inputs: 6 HDMI inputs, 1 HDMI output.
Audio Formats: Supports Dolby Digital, DTS, and more.
Weight: 20.5 lbs (9.3 kg).
Dimensions: 17.1 x 13.4 x 6.3 inches.
Power Consumption: 300 watts (maximum).

Controls and Settings

Access settings via the on-screen display or front panel controls. Key controls include power, volume, input selection, and menu navigation.

Remote: Power, volume, input selection, and setup options.

Connecting Devices

Connect devices using HDMI, optical, or analog inputs.

Turn off the receiver and devices before connecting.
Match cables to ports (e.g., HDMI to HDMI).
Select input via remote or front panel.

Tip: Ensure all devices are powered off during connections.

Playing Audio/Video Media

Supports various audio and video formats.

Power on the receiver and connected devices.
Select the desired input source.
Play media using the connected device's controls.

WARNING! Ensure proper connections to avoid damage.

Accessibility Features

Supports closed captions and audio descriptions for enhanced accessibility.

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

Complies with FCC regulations for digital devices. 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 in the menu.
Channels not programming	Antenna/menu	Use auto-program in menu; ensure antenna is connected.
Device not recognized	Connection issue	Check cable connections; restart devices.

Reset: Menu > System > Reset if available.

Service: Visit www.denon.com or call customer service.