Denon DCD 620 Service Manual

The Denon DCD 620 is a high-performance CD player designed to deliver exceptional audio quality. It features advanced digital-to-analog conversion technology, a precision transport mechanism, and a variety of playback options including CD, CD-R, and CD-RW. 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 CD Media 8. Accessibility Features 9. Care & Cleaning 10. Regulatory Information 11. Troubleshooting

Features at a Glance

Key components: High-precision CD transport, Digital-to-Analog Converter (DAC), Remote Control, Optical and Coaxial digital outputs.

Feature	Description
High-Precision Transport	Ensures accurate playback of audio CDs
Digital-to-Analog Converter	Converts digital audio signals to analog for high-quality sound
Remote Control	Convenient control of playback functions from a distance
Optical Output	For connecting to external DACs or receivers
Coaxial Output	Alternative digital output for audio connection
Playback Options	Supports CD, CD-R, and CD-RW formats
Repeat Function	Allows for repeating tracks or entire discs
Program Function	Customizable playback order of tracks

Installation

Unpack and inspect contents. Place the CD player on a stable surface.

Connect to power: Plug the power cord into an AC outlet.
Connect audio outputs: Use optical or coaxial cables to connect to your audio system.
Ensure proper ventilation: Leave space around the unit for airflow.

WARNING! Handle with care to avoid damage. Ensure all connections are secure.

First-Time Setup

Power on the CD player; follow on-screen prompts if applicable.

Select output format: Choose between PCM and Bitstream if applicable.
Adjust settings: Use the menu to set preferences for playback.
Test playback: Insert a CD to ensure proper functioning.

CAUTION! Ensure stable surface; avoid placing near heat sources.

Specifications

Audio Output: 2-channel analog, Optical and Coaxial digital outputs.
Supported Formats: CD, CD-R, CD-RW.
Frequency Response: 20 Hz - 20 kHz.
Dynamic Range: 100 dB.
Signal-to-Noise Ratio: 110 dB.
Power Consumption: 15W (Standby: 0.5W).
Dimensions: 17.1 x 12.2 x 3.3 inches.
Weight: 5.5 lbs.

Controls and Settings

Access settings via the front panel or remote control. Key controls include PLAY, PAUSE, STOP, and SKIP.

Remote: POWER, PLAY, PAUSE, STOP, SKIP, REPEAT, PROGRAM.

Audio settings: Adjust volume and balance through your audio system. Playback settings: Use the menu for repeat and program functions.

Connecting Devices

Connect to your audio system using optical or coaxial cables. Ensure all devices are powered off before connecting.

Turn off all devices before making connections.
Match cables to ports (e.g., optical to optical).
Power on the CD player and select the appropriate input on your audio system.

Tip: Ensure connections are secure to avoid audio issues.

Playing CD Media

Supports playback of audio CDs, CD-R, and CD-RW.

Insert disc: Press OPEN/CLOSE, load the CD.
Play: Press PLAY; select tracks using SKIP buttons.
Stop: Press STOP to halt playback; eject with OPEN/CLOSE.
Repeat: Press REPEAT to loop a track or entire disc.
Program: Use PROGRAM to set a custom track order.

WARNING! Do not force discs into the player; eject properly.

Accessibility Features

Remote control provides easy access to all functions. Ensure visibility of controls for ease of use.

Care & Cleaning

Unplug before cleaning. Use a soft, dry cloth to clean the exterior; avoid liquids.

CAUTION! Do not use abrasive cleaners; keep away from moisture.

Regulatory Information

This device complies with FCC Part 15 regulations. 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 audio system is on.
Disc not playing	Disc/loading	Ensure disc is loaded properly; check for damage.
Skipping tracks	Dirty lens	Clean the lens with a CD lens cleaner.

Reset: Refer to the manual for reset instructions if available.

Service: Contact Denon support for further assistance.