Denon DRA-835R Service Manual

The Denon DRA-835R is a high-performance stereo receiver designed for audiophiles. It features advanced circuitry, multiple input options, and a robust power output to deliver exceptional sound quality. 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 Media 8. Accessibility Features 9. Care & Cleaning 10. Regulatory Information 11. Troubleshooting

Features at a Glance

Key components: High-fidelity audio output, multiple input options, remote control, and advanced sound processing capabilities.

Feature	Description
Multiple Inputs	Supports various audio sources including CD, phono, and auxiliary inputs.
High Power Output	Delivers robust sound with minimal distortion.
Remote Control	Convenient control of all functions from a distance.
Advanced Sound Processing	Includes features like tone control and balance adjustment.
Headphone Jack	For private listening.
Speaker Outputs	Connects to multiple speaker systems.
FM/AM Tuner	Built-in tuner for radio listening.

Installation

Unpack and inspect contents. Place on a stable surface.

Connect speakers: Use appropriate speaker wire for connections.
Connect audio sources: Use RCA cables for CD, phono, and auxiliary inputs.
Plug into AC power.

WARNING! Ensure all connections are secure to avoid damage.

First-Time Setup

Power on the receiver; follow on-screen prompts.

Set up radio stations: Use the tuner to scan and save stations.
Adjust audio settings: Use the remote to access sound settings.
Connect additional devices as needed.

CAUTION! Ensure stable surface; avoid overheating.

Specifications

Power Output: 70 watts per channel (8 ohms).
Frequency Response: 20 Hz - 20 kHz.
Input Sensitivity: 150 mV for line inputs.
Signal-to-Noise Ratio: 100 dB.
Dimensions: 17.1 x 5.5 x 14.2 inches.
Weight: 20.5 lbs.
Power Supply: 120V AC, 60Hz.

Controls and Settings

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

Remote: POWER, INPUT, VOLUME, TONE, MUTE, and preset station buttons.

Audio: Adjust bass, treble, and balance. Install: Language settings and auto-tuning for radio.

Connecting Devices

Connect audio sources using RCA cables. Ensure proper matching of inputs and outputs.

Turn off the receiver and devices before connecting.
Match cables to ports (e.g., RCA to CD).
Select input via remote control.

Tip: Ensure the receiver is off before connecting cables.

Playing Audio Media

Supports CD, vinyl, and auxiliary audio sources.

Insert disc: Load CD into the tray.
Play: Press PLAY; select tracks using the remote.
Stop: Press STOP to halt playback.
Skip: Use PREV/NEXT for tracks.

WARNING! Do not force discs; handle with care.

Accessibility Features

Remote control allows for easy access to all functions. Volume control is accessible for hearing-impaired users.

Care & Cleaning

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

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.
Sound distortion	Volume too high	Lower volume; check speaker connections.
Channels not programming	Input selection/menu	Ensure correct input is selected; use auto-tune.

Reset: Menu > System > Reset if available.

Service: Contact Denon support for assistance.