Marantz PMD321 Manual

The Marantz PMD321 is a professional portable digital recorder designed for broadcast, field recording, and professional audio applications. It features high-quality recording capabilities, multiple input options, USB connectivity, and durable construction suitable for professional use. Below are key sections covering features, operation, specifications, and troubleshooting.

Features at a Glance

Key components: Professional digital recorder, built-in stereo microphones, XLR inputs, USB port, SD card slot, LCD display, and comprehensive recording controls.

Feature	Description
Built-in stereo mics	High-quality condenser microphones for immediate recording
XLR inputs	Professional balanced inputs with phantom power
USB 2.0 port	For file transfer and computer connectivity
SD card slot	Supports SD/SDHC cards up to 32GB
LCD display	Backlit display for settings and level monitoring
Recording formats	WAV (BWF) and MP3 formats
Sample rates	44.1kHz, 48kHz, 96kHz
Battery power	AA batteries or AC adapter
Headphone output	With volume control for monitoring
Auto record	Voice-activated recording feature

Installation & Setup

Unpack and inspect contents. Prepare for first use.

1. Insert batteries: Open battery compartment, insert 4 AA batteries observing polarity.
2. Install SD card: Insert compatible SD/SDHC card into slot.
3. Connect external mics: Use XLR inputs for professional microphones.
4. Power on: Slide power switch to ON position.

WARNING! Use only recommended power sources. Do not expose to moisture.

Basic Operation

Power on unit; familiarize with basic controls.

1. Select input source: Choose between built-in mics or XLR inputs.
2. Set recording level: Adjust input level using LEVEL controls.
3. Choose file format: Select WAV or MP3 in menu settings.
4. Start recording: Press RECORD button; press STOP to end.

CAUTION! Always monitor recording levels to prevent distortion.

Specifications

• Recording Media: SD/SDHC card (up to 32GB)
• File Formats: WAV (BWF), MP3
• Sample Rates: 44.1kHz, 48kHz, 96kHz
• Bit Depth: 16-bit/24-bit
• Inputs: XLR (balanced), built-in stereo mics
• Outputs: Headphone, USB 2.0
• Power Supply: 4x AA batteries or DC 6V adapter
• Battery Life: Approx. 5 hours (alkaline batteries)
• Dimensions: Professional portable size
• Weight: Lightweight for field use

Controls and Functions

Front panel: POWER switch, RECORD, STOP, PLAY, LCD display, navigation buttons.

Side panel: XLR inputs, PHANTOM POWER switch, LEVEL controls, HEADPHONE output.

Menu system: Access via MENU button for format selection, sample rate, file management, system settings. Recording modes: Manual, auto record, pre-record. Monitoring: Headphone output with level control, peak indicators.

Recording Settings

Configure recording parameters for optimal performance.

1. Access menu: Press MENU button.
2. Select format: Choose WAV (uncompressed) or MP3 (compressed).
3. Set sample rate: 44.1kHz for CD quality, 48kHz for broadcast, 96kHz for high-res.
4. Adjust input level: Use LEVEL knobs while monitoring meters.
5. Enable phantom power: For condenser microphones (48V).

Tip: Use headphones to monitor audio quality during setup.

Playback & File Management

Review recordings and manage files on SD card.

1. Playback: Press PLAY button, use navigation to select files.
2. Fast forward/rewind: Use << and >> buttons during playback.
3. Delete files: Access file management in menu to delete unwanted recordings.
4. Folder organization: Create and manage folders for different projects.
5. Format card: Use menu option to format SD card (erases all data).

WARNING! Backup important files before formatting card.

USB Connectivity

Connect to computer for file transfer and power.

1. Connect USB cable: Use provided USB cable to connect to computer.
2. Select USB mode: Choose between storage mode or audio interface.
3. Transfer files: Drag and drop audio files between devices.
4. Charging: Unit can be powered via USB connection.

Note: Install drivers if required by your operating system.

Maintenance & Care

Keep unit clean and properly maintained.

Use dry cloth for cleaning. Store in protective case when not in use. Regularly check battery contacts. Keep SD card slot clean.

CAUTION! Do not use chemicals or abrasive cleaners. Avoid extreme temperatures.

Regulatory Information

FCC Part 15 compliant. CE marked. Manufactured to professional audio standards. Copyright © Marantz Professional. For technical support, visit www.marantzpro.com or contact authorized service centers.

Troubleshooting

Symptom	Possible Cause	Corrective Action
Unit won't power on	Dead batteries/power issue	Replace batteries; check AC adapter connection.
No recording	SD card issues	Check card insertion; format card; ensure card compatibility.
Poor audio quality	Input levels/mic placement	Adjust input levels; check mic positioning; enable phantom power if needed.
USB not recognized	Driver/cable issues	Install drivers; try different USB cable; check computer USB port.
Distorted audio	Input clipping	Reduce input levels; check for peak indicators.

Reset: Menu > System > Factory Reset if available.

Service: Contact authorized Marantz Professional service center.