Marantz PMD 720 User Manual

The Marantz PMD 720 is a professional portable digital recorder featuring high-quality audio recording capabilities, built-in stereo microphones, XLR inputs with phantom power, USB connectivity, SD card storage, and multiple recording formats. Designed for field recording, interviews, and professional audio applications. 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. Recording Operations 8. Playback Features 9. Care & Maintenance 10. Regulatory Information 11. 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 control buttons.

Feature	Description
Built-in stereo microphones	High-quality condenser microphones for immediate recording
XLR inputs	Professional audio inputs with phantom power (48V)
USB connectivity	For file transfer and computer connection
SD card slot	Expandable storage up to 32GB
LCD display	Backlit screen for menu navigation and status
Recording formats	WAV (16/24-bit) and MP3
Power source	AA batteries or AC adapter
Headphone output	For monitoring and playback
Line input/output	For external audio connections
Digital limiter	Prevents audio clipping during recording

Installation

Unpack and inspect contents. Prepare for first use.

Insert batteries: Open battery compartment, install 4 AA batteries observing polarity.
Install SD card: Insert compatible SD card into slot until it clicks.
Connect AC adapter: Use provided power adapter for extended use.
Attach accessories: Connect headphones or external microphones as needed.

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

First-Time Setup

Power on device; configure initial settings.

Set date and time: Access SYSTEM menu to configure clock settings.
Format SD card: Use FORMAT function in menu for new cards.
Configure recording settings: Set default format (WAV/MP3), sample rate, and bit depth.
Test recording: Perform brief recording to verify functionality.

CAUTION! Always format new SD cards in the device for optimal performance.

Specifications

Recording formats: WAV (16-bit/44.1kHz to 24-bit/96kHz), MP3 (32-320kbps)
Storage: SD/SDHC cards up to 32GB
Inputs: 2 XLR/TRS combo jacks, stereo mini jack
Outputs: Headphone, line out, USB
Phantom power: 48V for condenser microphones
Frequency response: 20Hz - 20kHz
Signal-to-noise ratio: >90dB
Power consumption: 4W typical
Operating time: Approx. 4 hours with alkaline batteries
Dimensions: 165 x 68 x 40 mm
Weight: 280g (without batteries)

Controls and Settings

Front panel: POWER, RECORD, STOP, PLAY, MENU, navigation buttons. Side panel: Input level controls, headphone volume.

Menu system: Access via MENU button; navigate with arrow keys.

Recording settings: Format selection, sample rate, input source (internal mics/XLR/line), limiter on/off. System settings: Date/time, display contrast, auto power-off, button lock. Playback settings: Play mode, file management, marker functions.

Connecting Devices

External microphones: XLR inputs with phantom power. Line devices: Use line input/output jacks. Computer: USB for file transfer.

Connect microphones: Plug XLR cables into inputs, enable phantom power if needed.
Line connections: Use appropriate cables for audio interfaces or mixers.
USB connection: Connect to computer for file management and charging.
Headphones: Connect for monitoring during recording and playback.

Tip: Always check input levels before recording important material.

Recording Operations

Professional recording with multiple source options.

Select input source: Choose internal mics, XLR inputs, or line input.
Set recording levels: Adjust input controls while monitoring levels.
Start recording: Press RECORD button (press again to pause).
Create markers: Press MARKER during recording for easy navigation.
Stop recording: Press STOP to end and save recording.
Monitor recording: Use headphones to monitor audio quality.
Check levels: Ensure meters show adequate level without clipping.

WARNING! Always monitor recording levels to prevent distortion.

Playback Features

Comprehensive playback and file management.

Select files: Navigate file list using arrow keys.
Play audio: Press PLAY to begin playback.
Navigate markers: Use FF/REW to jump between markers.
File operations: Delete, protect, or rename files in menu.
USB transfer: Connect to computer for file backup.

Care & Maintenance

Keep device clean and properly stored.

Clean exterior with dry, soft cloth. Store in protective case when not in use. Regularly backup recordings to computer. Keep connectors clean and free from debris.

CAUTION! Do not use solvents or abrasive cleaners. Avoid extreme temperatures and humidity.

Regulatory Information

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

Troubleshooting

Symptom	Possible Cause	Corrective Action
No power	Batteries/AC adapter	Check battery installation; verify AC adapter connection
Recording not starting	SD card issues	Ensure card is properly inserted and formatted
No audio input	Input selection/settings	Verify input source selection; check cable connections
Distorted recording	Input levels too high	Reduce input levels; enable limiter function
USB not recognized	Driver/connection	Reconnect USB cable; install drivers if required
Poor battery life	Battery type/age	Use fresh alkaline or rechargeable batteries

Reset: Menu > System > Factory Reset if experiencing persistent issues.

Service: Contact authorized Marantz Professional service center for repairs.