Denon DRW 660 Service Manual

The Denon DRW 660 is a dual cassette deck designed for high-quality audio playback and recording. It features advanced tape transport mechanisms, Dolby B and C noise reduction, and various playback modes including normal, high-speed dubbing, and auto-reverse. 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 Tapes 8. Accessibility Features 9. Care & Cleaning 10. Regulatory Information 11. Troubleshooting

Features at a Glance

Key components: Dual cassette mechanism, Dolby B/C noise reduction, Auto-reverse, High-speed dubbing, RCA input/output jacks.

Feature	Description
Dual cassette mechanism	Allows playback and recording on two tapes simultaneously
Dolby B/C noise reduction	Reduces tape hiss for clearer sound
High-speed dubbing	Copies audio from one tape to another quickly
Auto-reverse	Automatically plays the other side of the tape
RCA input/output jacks	For connecting to other audio devices
Playback modes	Normal, High-speed dubbing, Auto-reverse
Power indicator	Shows when the unit is powered on
Volume control	Adjusts the output level

Installation

Unpack and inspect contents. Place on a stable surface.

Connect audio sources: Use RCA cables to connect to your audio system.
Plug into AC power.
Ensure all connections are secure before powering on.

WARNING! The unit is heavy; lift with care to avoid injury.

First-Time Setup

Power on the unit; follow the on-screen prompts if available.

Set the tape type: Select the appropriate tape type using the controls.
Adjust audio settings: Use the menu to configure sound settings.
Test playback: Insert a tape and check playback functionality.

CAUTION! Ensure stable surface; use two people for handling if necessary.

Specifications

Type: Dual cassette deck.
Noise Reduction: Dolby B/C.
Playback Modes: Normal, High-speed dubbing, Auto-reverse.
Input/Output: RCA jacks for audio input/output.
Power Supply: AC 120V, 60Hz.
Dimensions: Standard rack mount size.
Weight: Approximately 10 lbs.

Controls and Settings

Access controls via the front panel. Key controls include POWER, PLAY, RECORD, STOP, and REW/FF buttons.

Remote: If available, includes controls for playback, recording, and volume adjustments.

Connecting Devices

Connect to audio sources using RCA cables. Ensure all devices are powered off before connecting.

Match cables to ports (e.g., RCA to audio output).
Power on the devices after connections are made.

Tip: Ensure all connections are secure to avoid audio issues.

Playing Audio Tapes

Supports standard audio cassettes.

Insert tape: Press OPEN to load the cassette.
Play: Press PLAY to start playback.
Stop: Press STOP to halt playback.
Fast Forward/Rewind: Use REW/FF buttons as needed.
Record: Press RECORD to start recording from the input source.

WARNING! Do not force tape into the deck; ensure it is loaded correctly.

Accessibility Features

Ensure all controls are easily accessible. Consider using labels for visually 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

This device complies with FCC regulations for Class B 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; point at IR sensor; install fresh batteries.
No sound	Connections/mute	Ensure the unit is on; check connections; adjust mute.
Tape not playing	Tape loading	Ensure tape is loaded properly; eject and reload if necessary.
Recording issues	Input source	Check input connections; ensure the source is active.

Reset: If available, refer to the manual for reset instructions.

Service: Contact Denon support for service inquiries.