The Marantz PMD670 is a professional portable solid-state recorder featuring high-quality audio recording capabilities, built-in XLR inputs with phantom power, USB connectivity for file transfer, compact flash card storage, multiple recording formats including WAV and MP3, balanced analog inputs/outputs, digital I/O, and rechargeable battery operation. Below are key sections for operation, features, setup, specifications, and troubleshooting.
Key components: Professional audio recorder, XLR inputs with phantom power, Compact Flash storage, USB interface, LCD display, transport controls.
| Feature | Description |
|---|---|
| XLR Inputs | Professional balanced microphone/line inputs with +48V phantom power |
| Compact Flash Slot | For digital audio storage using CF cards |
| USB Port | For computer connection and file transfer |
| LCD Display | Shows recording status, levels, and menu information |
| Recording Formats | WAV (16/24-bit) and MP3 (32-320kbps) |
| Digital I/O | S/PDIF digital input and output |
| Analog Outputs | Balanced XLR and unbalanced 1/4" outputs |
| Power Supply | Rechargeable battery pack or AC adapter |
| Headphone Output | With independent level control |
| Transport Controls | Play, Stop, Record, Pause, FF, REW |
Unpack and inspect contents. Prepare for first use.
WARNING! Use only approved power supplies. Handle CF cards with care to avoid damage.
Power on unit; navigate menus using front panel controls.
CAUTION! Always monitor recording levels to prevent distortion.
Front Panel: POWER, TRANSPORT controls, MENU navigation, LCD display, level meters.
Input Section: XLR connectors, gain controls, phantom power switch, input selectors. Output Section: Level controls, headphone output, monitor selectors.
Menu System: Recording setup, file management, system settings, format utilities. Display: Shows recording status, levels, time code, battery status, file information.
Professional audio recording with multiple input options.
Tip: Use headphones to monitor audio quality during recording.
Playback and organization of recorded audio files.
WARNING! Always stop playback before removing CF card to prevent data corruption.
Computer connection for file transfer and remote control.
Multiple power options for portable operation.
Battery operation: Use rechargeable battery pack for portable use. AC power: Connect AC adapter for extended stationary operation. Battery charging: Charge battery while unit is powered off. Power management: Automatic power save features to extend battery life.
CAUTION! Use only approved Marantz power supplies and batteries.
Regular maintenance for optimal performance.
Clean exterior with dry cloth only. Keep connectors clean and free of debris. Store in protective case when not in use. Regular firmware updates when available.
CAUTION! Do not use liquids or aerosols for cleaning. Avoid extreme temperatures and moisture.
| Symptom | Possible Cause | Corrective Action |
|---|---|---|
| No power | Battery/AC adapter | Check battery charge; verify AC adapter connection; ensure power switch is on. |
| No audio input | Connections/phantom power | Check microphone connections; enable phantom power for condenser mics; verify input selection. |
| Recording failure | CF card/format | Ensure CF card is properly inserted; format card if necessary; check available space. |
| Distorted audio | Input levels | Reduce input gain; monitor levels to prevent clipping; check microphone placement. |
| USB not recognized | Cables/drivers | Check USB cable connection; ensure proper USB mode selection; install drivers if required. |
Reset: Menu > System > Reset to factory defaults if needed.
Service: Contact authorized Marantz service center for technical support.