1. Introduction
This manual provides detailed instructions for the safe and effective use of your Olympus DM-620 Digital Voice Recorder. The DM-620 features a TRESMIC 3 microphone system for wide stereo sound capture, 4GB of built-in memory, a microSD card slot for expanded storage, and supports PCM (WAV), MP3, and WMA recording formats. Please read this manual thoroughly before using the device to ensure optimal performance and longevity.
2. Product Overview
Key Features:
- TRESMIC 3 Microphones: For enhanced stereo sound recording.
- 4GB Built-In Memory: Ample storage for recordings.
- MicroSD Card Slot: Expandable memory for extended recording times.
- Multiple Recording Formats: Supports PCM (WAV), MP3, and WMA.
- Scene Selection: Optimize recording settings for various environments.
- Voice Guidance: Provides audible feedback for menu navigation and operations.
Device Layout:
This image displays the front of the Olympus DM-620 Digital Voice Recorder. At the top, two prominent microphone grilles are visible, indicating the stereo microphone setup. Below the "OLYMPUS" branding, the model name "DIGITAL VOICE RECORDER DM-620" is clearly printed. The central part features a monochrome LCD screen displaying recording information such as file name (DM620037), recording format (PCM 48/16), remaining recording time (3H27m46s), current recording duration (0H31M57S), and audio level meters (L and R channels with dB indicators). Below the screen are two function buttons, F1 and F2, labeled "SCENE" and "INDEX" respectively. A "MENU" button is centrally located above the main control cluster. To the left of the menu button is a "STOP" button (square icon), and to the right is a "REC" button (red circle). The main navigation is a circular control pad with "OK" in the center, surrounded by directional arrows (rewind, fast forward, play/pause, stop). Below this, to the left, is an "ERASE" button (orange circle) and to the right, a "LIST" button. The bottom of the device features labels "3 MICROPHONES", "4GB", and "+ microSD", highlighting key specifications.
3. Setup
3.1 Battery Installation
- Locate the battery compartment cover on the back of the device.
- Slide the cover open.
- Insert two AAA batteries, ensuring correct polarity (+/-) as indicated inside the compartment. (Two AAA batteries are included with the device).
- Close the battery compartment cover securely.
Note: Use only alkaline or rechargeable Ni-MH AAA batteries. Do not mix old and new batteries or different types of batteries.
3.2 Powering On/Off
- To power on, slide the Power switch (usually on the side) upwards.
- To power off, slide the Power switch downwards and hold until the device shuts down.
3.3 Initial Settings (Date/Time)
Upon first use or after battery replacement, you may be prompted to set the date and time. Follow the on-screen instructions using the navigation buttons and the OK button to confirm.
3.4 Inserting a MicroSD Card
The DM-620 has a microSD card slot for additional storage. Locate the slot (typically on the side), insert the microSD card with the contacts facing down until it clicks into place. To remove, push the card in gently until it springs out.
4. Operating Instructions
4.1 Recording
- Select Recording Scene: Press the F1 (SCENE) button to choose an optimal recording scene (e.g., Lecture, Conference, Meeting, Dictation) for your environment. This adjusts microphone sensitivity and other settings.
- Start Recording: Press the REC button (red circle). The recording indicator will illuminate, and the display will show the elapsed recording time.
- Pause Recording: During recording, press the REC button again to pause. Press it once more to resume.
- Stop Recording: Press the STOP button (square icon) to end the recording. The file will be saved automatically.
Recording Formats: The DM-620 supports PCM (WAV), MP3, and WMA formats. You can select your preferred format through the device's menu settings. PCM offers the highest quality, while MP3 and WMA provide more recording time with smaller file sizes.
4.2 Playback
- Access Files: Press the LIST button to view your recorded files. Use the navigation buttons to scroll through the list.
- Select and Play: Highlight the desired file and press the OK button to start playback.
- Adjust Volume: Use the VOL (+/-) buttons to increase or decrease playback volume.
- Fast Forward/Rewind: During playback, press and hold the fast forward (>>) or rewind (<<) buttons on the navigation pad.
- Pause/Stop Playback: Press the OK button to pause, and the STOP button to stop playback.
Voice Guidance: The device offers voice guidance for menu operations and file playback, enhancing accessibility. This feature can be enabled or disabled in the system settings.
Indexing: During recording or playback, you can add index marks by pressing the F2 (INDEX) button. These marks allow for quick navigation to specific points within a recording.
4.3 File Management
- Transferring Files to PC: Connect the DM-620 to your computer using a USB cable. The device will appear as a removable disk drive, allowing you to drag and drop files.
- Erasing Files: Select the file you wish to erase from the file list and press the ERASE button. Confirm your selection when prompted.
5. Maintenance
- Cleaning: Wipe the device with a soft, dry cloth. Do not use liquid cleaners or solvents.
- Battery Care: Remove batteries if the device will not be used for an extended period to prevent leakage.
- Storage: Store the recorder in a cool, dry place away from direct sunlight and extreme temperatures.
6. Troubleshooting
Common Issues and Solutions:
- Device does not power on:
- Check if batteries are inserted correctly with proper polarity.
- Replace with fresh batteries.
- Ensure the power switch is in the ON position.
- No sound during playback:
- Increase the volume using the VOL (+) button.
- Ensure headphones are properly connected if using them.
- Check if the file is corrupted.
- Computer does not recognize the device:
- Ensure the USB cable is securely connected to both the recorder and the computer.
- Try a different USB port or cable.
- Restart the computer and the recorder.
- Poor recording quality:
- Select an appropriate recording scene (F1 (SCENE)) for your environment.
- Ensure microphones are not obstructed.
- Check microphone sensitivity settings in the menu.
If you encounter issues not covered here, please refer to the official Olympus support website or contact customer service.
7. Specifications
| Feature | Detail |
|---|---|
| Model Number | DM-620 (142665) |
| Brand | Olympus (OM SYSTEM) |
| Memory Storage Capacity | 4 GB (Built-in) |
| Expandable Memory | MicroSD Card Slot |
| Recording Formats | MP3 Audio, WAV (PCM), WMA |
| Microphone Form Factor | Built-In (TRESMIC 3 Microphones) |
| Hardware Interface | MicroSD, USB |
| Compatible Devices | Personal Computer |
| Headphones Jack | 3.5 millimeters |
| Batteries | 2 AAA batteries (included) |
| Item Weight | 1.6 ounces |
| Product Dimensions | 2.4 x 5.1 x 6.2 inches |
| Manufacturer | Olympus |
| Date First Available | March 15, 2011 |
8. Warranty and Support
The Olympus DM-620 Digital Voice Recorder comes with a standard manufacturer's warranty. For specific warranty terms, registration, and technical support, please visit the official Olympus website or contact their customer service department. Keep your proof of purchase for warranty claims.
For the most up-to-date information and additional resources, please refer to the manufacturer's official support channels.
