Marantz HD/CD Recorder CDR420 Manual

The Marantz HD/CD Recorder CDR420 is a professional-grade audio recording device featuring hard disk recording capabilities, CD recording functionality, digital signal processing, multiple input/output options, and advanced editing features. This high-fidelity recorder supports various audio formats, offers real-time recording and playback, and includes professional connectivity options for studio and live applications. Below are key sections covering features, installation, operation, specifications, and troubleshooting.

1. Features at a Glance 2. Installation 3. First-Time Setup 4. Specifications 5. Controls and Settings 6. Connecting Devices 7. Recording and Playback 8. Editing Features 9. Care & Maintenance 10. Regulatory Information 11. Troubleshooting

Features at a Glance

Key components: Hard disk drive, CD recorder mechanism, Digital signal processor, Front panel controls, LCD display, Multiple input/output connectors.

Feature	Description
Hard Disk Recording	Up to 40GB storage capacity for extended recording sessions
CD Recording	CD-R/RW recording capability with various audio formats
Digital Inputs/Outputs	S/PDIF coaxial and optical digital connections
Analog Inputs	RCA and XLR balanced inputs for professional audio
LCD Display	Backlit display showing track information and settings
Editing Functions	Track division, combine, delete, and digital editing
Sampling Rates	44.1kHz, 48kHz, 96kHz supported
Remote Control	Full-function infrared remote included
Sync Recording	Automatic recording start with input signal detection
Power Supply	Internal switching power supply

Installation

Unpack and inspect contents. Place on stable, vibration-free surface.

Connect audio sources: Use digital or analog inputs for recording sources.
Connect audio outputs: Route to amplifiers, mixers, or monitoring systems.
Connect control devices: Use RS-232 or MIDI connections if required.
Plug into AC power using supplied power cord.

WARNING! Ensure proper ventilation; do not block cooling vents. Use stable power source.

First-Time Setup

Power on unit; initialize hard disk if first use.

System initialization: Follow on-screen prompts to format hard disk.
Input configuration: Set input levels and recording parameters.
Clock setting: Set internal clock for time-stamped recordings.
Default settings: Configure preferred recording quality and format.

CAUTION! Initial formatting will erase all data. Backup important files first.

Specifications

Recording Media: Internal hard disk (40GB), CD-R/RW
Audio Formats: WAV, MP3 (optional), Linear PCM
Sampling Rates: 44.1kHz, 48kHz, 96kHz
Bit Depth: 16-bit, 24-bit
Frequency Response: 20Hz-20kHz (±0.5dB)
Signal-to-Noise: >95dB
Total Harmonic Distortion: <0.05%
Inputs: Analog (RCA/XLR), Digital (coaxial/optical)
Outputs: Analog (RCA), Digital (coaxial/optical), Headphone
Power Requirements: 120V/230V AC, 50/60Hz

Controls and Settings

Front Panel: POWER, RECORD, PLAY, STOP, PAUSE, EJECT, Navigation buttons, LEVEL controls.

Remote Control: All transport functions, numeric entry, menu navigation, input selection.

Recording Settings: Input level adjustment, recording format selection, sync mode, pre-recording buffer. Playback Settings: Repeat modes, shuffle play, program play, fade in/out. System Settings: Clock, display contrast, auto power-off, default recording settings.

Connecting Devices

Audio Sources: Digital (coaxial/optical) or analog (RCA/XLR) inputs. Monitoring: Analog outputs to amplifier/monitors.

Turn off all devices before making connections.
Use quality cables appropriate for signal type.
Set input levels using front panel meters.
Verify signal flow before recording.

Tip: Use balanced connections for long cable runs to reduce noise.

Recording and Playback

Supports real-time recording to hard disk or CD.

Select input source: Choose analog or digital input.
Set recording levels: Adjust using front panel controls and meters.
Start recording: Press RECORD; unit will begin recording to hard disk.
Monitor recording: Use front panel display and output monitoring.
Stop recording: Press STOP to end recording session.
Playback: Select recorded tracks from library for playback.
CD burning: Transfer selected tracks from hard disk to CD.

WARNING! Do not interrupt power during recording or CD burning process.

Editing Features

Digital editing capabilities for professional audio production.

Track division: Split long recordings into separate tracks.
Track combine: Merge multiple tracks into single file.
Delete function: Remove unwanted tracks or sections.
Fade in/out: Add professional fade effects to tracks.
Title editing: Name tracks for easy identification.

Care & Maintenance

Keep unit clean and dust-free. Use approved cleaning discs for laser lens.

CAUTION! Do not use solvents or abrasive cleaners. Keep away from magnetic fields.

Regulatory Information

FCC Part 15 Class B compliant. CE marked for European compliance. Copyright © Marantz. For technical support, visit www.marantz.com or contact authorized service centers. Unit contains laser product - do not disassemble.

Troubleshooting

Symptom	Possible Cause	Corrective Action
No power	Power cord/power switch	Check power connection; ensure power switch is on.
No audio input	Connections/input selection	Verify cable connections; check input source selection.
Recording error	Disk space/disk error	Check available disk space; run disk diagnostics.
CD not recognized	Disc type/dirty lens	Use compatible CD-R/RW; clean laser lens if needed.
Poor audio quality	Input levels/cables	Adjust input levels; check cable quality and connections.

Reset: System menu > Factory Reset if available.

Service: Contact authorized Marantz service center for repairs.