HERTZ HMR-10
Hertz HMR-10 Marine Digital Media Receiver User Manual
Model: HMR-10
Introduction
The Hertz HMR-10 is a marine-grade digital media receiver designed for audio entertainment on boats and other marine vehicles. It features AM/FM radio, USB input, and Bluetooth connectivity, allowing you to stream music from your devices. Its compact gauge-style design integrates seamlessly into marine dashboards. This manual provides detailed instructions for installation, operation, maintenance, and troubleshooting to ensure optimal performance and longevity of your HMR-10 receiver.
Product Overview


Setup and Installation
Proper installation is crucial for the performance and longevity of your HMR-10 receiver. It is recommended to have this unit installed by a qualified marine audio technician.
Mounting Considerations
- Mounting Method: The HMR-10 uses a U-Bracket mounting system.
- Mounting Holes Size: 89.5 mm (3.52 inches) diameter.
- Mounting Depth: 72 mm (2.83 inches) is required behind the mounting surface.
- Unit Size: Diameter 113 mm (4.45 inches) x Depth 96.5 mm (3.79 inches).
- Ensure the mounting location is protected from direct water exposure and excessive heat.
- Allow sufficient space for wiring connections at the rear of the unit.
Wiring Diagram (Refer to Figure 2)
Connect the wiring harness according to the following guidelines. Always disconnect the boat's battery before making any electrical connections.
- Power (Yellow): Connect to a constant 12V power source (battery positive).
- Ground (Black): Connect to a good chassis ground point.
- Accessory/Ignition (Red): Connect to a switched 12V power source (e.g., ignition switch).
- Speaker Outputs (Colored Pairs): Connect to your marine speakers. Ensure correct polarity. The HMR-10 provides 50W x 4 output at 4 Ohms.
- RCA Outputs (Red/White): For connecting to external amplifiers (Front, Rear, Subwoofer if applicable).
- USB Input: For connecting USB storage devices.
- AUX Input: For connecting external audio sources via a 3.5mm jack.
Operating Instructions
Basic Controls (Refer to Figure 1)
- Power Button (⏻): Press to turn the unit ON/OFF.
- Volume Up/Down (VOL + / VOL -): Adjusts the audio output level.
- Source (SRC): Cycles through available audio sources (FM, AM, USB, Bluetooth, AUX).
- Band (BAND): In radio mode, switches between FM and AM bands.
- Seek/Track Buttons (⏮ / ⏴):
- In radio mode: Short press to seek next/previous station.
- In USB/Bluetooth mode: Short press to skip to next/previous track.
- Long press for fast forward/rewind (USB only).
- Play/Pause (⏸): In USB/Bluetooth mode, plays or pauses playback.
- AS (Auto Store): In radio mode, long press to automatically scan and store strong stations.
Bluetooth Operation
- Press the SRC button to select "Bluetooth" mode.
- On your mobile device, enable Bluetooth and search for available devices.
- Select "Hertz HMR-10" from the list to pair.
- Once paired, you can stream audio from your device to the HMR-10. Use the seek/track and play/pause buttons on the HMR-10 or your device to control playback.
USB Playback
- Insert a USB storage device into the USB port.
- Press the SRC button to select "USB" mode.
- The unit will automatically begin playing compatible audio files.
- Use the seek/track and play/pause buttons to control playback.
Auxiliary Input
- Connect your external audio device (e.g., MP3 player) to the AUX input using a 3.5mm audio cable.
- Press the SRC button to select "AUX" mode.
- Audio from your connected device will now play through the HMR-10. Control playback directly from your external device.
Maintenance
To ensure the longevity and optimal performance of your Hertz HMR-10 marine receiver, follow these maintenance guidelines:
- Cleaning: Use a soft, damp cloth to wipe down the unit's exterior. Avoid abrasive cleaners, solvents, or harsh chemicals, as they can damage the finish or internal components.
- Water Exposure: While designed for marine environments, avoid direct high-pressure water spray. Ensure all covers and caps for USB/AUX ports are securely closed when not in use to prevent water ingress.
- Connections: Periodically check all wiring connections for corrosion or looseness. Clean any corroded terminals and ensure connections are secure.
- Storage: If the boat is stored for an extended period, especially in harsh conditions, consider covering the unit or removing it if possible to protect it from extreme temperatures and moisture.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| No power |
|
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| No sound |
|
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| Bluetooth not pairing |
|
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| USB not recognized |
|
|
Specifications
| Feature | Detail |
|---|---|
| Model Number | HMR-10 |
| Max Power Output | 50W x 4 (@ 4 Ohms) |
| Unit Size (Diameter x Depth) | 113 mm (4.45 in) x 96.5 mm (3.79 in) |
| Mounting Holes Size (Diameter) | 89.5 mm (3.52 in) |
| Mounting Depth | 72 mm (2.83 in) |
| Mounting Method | U-Bracket |
| Connectivity Technology | Auxiliary, USB, Bluetooth |
| Controller Type | Mechanical knob, Bluetooth |
| Special Feature | Equalizer |
| Audio Encoding | Stereo |
| Audio Output Mode | Stereo |
| Surround Sound Channel Configuration | 2 |
| Item Weight | 1.83 pounds |
| Product Dimensions | 2.83 x 4.45 x 2.83 inches |
Warranty and Support
Hertz products are manufactured to the highest quality standards. For specific warranty terms and conditions, please refer to the warranty card included with your product or visit the official Hertz website.
For technical support, troubleshooting assistance beyond this manual, or warranty claims, please contact Hertz customer service or your authorized Hertz dealer. You can find contact information on the official Hertz website: www.hertzaudiovideo.com
Please have your product model number (HMR-10) and purchase details ready when contacting support.
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