1. Introduction
Thank you for choosing the Caliber RMD020 Car Radio. This manual provides essential information for the proper installation, operation, and maintenance of your new car audio system. Please read this manual thoroughly before using the product to ensure optimal performance and safety.
The Caliber RMD020 is a car radio designed without a CD player, featuring USB and SD card playback capabilities (supporting up to 32GB). It includes an FM tuner with 18 preset station memory, RCA output for external amplifiers, and an integrated ISO connector for simplified installation. The unit delivers a maximum power output of 4 x 55 Watts and offers a 3.5mm stereo auxiliary input. Its ultra-shallow depth of 35mm allows for versatile mounting options.
2. Safety Information
- Installation: Ensure the unit is installed by a qualified professional to prevent damage to the vehicle or the unit itself. Incorrect wiring can cause fire or electrical shock.
- Power Supply: Connect the unit only to a 12V DC car battery with a negative ground.
- Volume Level: Do not operate the unit at excessively high volume levels, as this may impair your ability to hear external traffic sounds and could lead to hearing damage.
- Moisture: Keep the unit away from moisture and water. Exposure to water can cause electrical shock or malfunction.
- Cleaning: Use a soft, dry cloth for cleaning. Do not use abrasive cleaners or solvents.
- Disassembly: Do not attempt to disassemble or modify the unit. This can lead to electric shock, damage, or void the warranty.
3. Product Overview
The following image illustrates the front panel of the Caliber RMD020 car radio, highlighting its key controls and features.
Image Description: Front view of the Caliber RMD020 car radio. The unit features a central rotary knob for volume and menu navigation. To the left of the knob are buttons for power, mode, and band selection. To the right are track skip/seek buttons. A blue LCD display shows current status, such as 'FM 50'. On the far right, there is a USB port and an SD card slot, along with an auxiliary input jack.
Front Panel Features:
- Power/Mode Button: Press to turn on/off, short press to change mode (FM/USB/SD/AUX).
- Rotary Knob: Adjusts volume. Press to access menu options.
- Band Button: Selects FM band (FM1, FM2, FM3).
- Seek/Track Buttons: Skips tracks or seeks radio stations.
- USB Port: For connecting USB storage devices (up to 32GB).
- SD Card Slot: For inserting SD memory cards (up to 32GB).
- AUX Input: 3.5mm jack for connecting external audio devices.
- LCD Display: Shows current status, frequency, track information, etc.
4. Setup
4.1. Installation
The Caliber RMD020 features an ultra-shallow depth of 35mm, making it suitable for various vehicle dashboards. It is designed for standard DIN mounting.
- Ensure the vehicle's ignition is off and the negative terminal of the battery is disconnected before starting installation.
- Mount the unit securely into the dashboard using the provided mounting sleeve and brackets.
- Ensure adequate ventilation around the unit to prevent overheating.
4.2. Wiring
The unit comes with an integrated ISO connector for simplified wiring. Connect the wiring harness according to the diagram provided with your vehicle's wiring or consult a professional installer.
- Power Wires: Connect the yellow wire (constant 12V) to the vehicle's constant 12V supply, the red wire (switched 12V) to the ignition switch, and the black wire (ground) to a good chassis ground point.
- Speaker Wires: Connect the speaker wires to your vehicle's speakers, ensuring correct polarity for each speaker. The unit supports 4 speakers.
- Antenna: Connect the vehicle's FM antenna to the antenna input on the rear of the unit.
- RCA Output: If using an external amplifier, connect RCA cables from the unit's RCA output to the amplifier's input.
5. Operating Instructions
5.1. Power On/Off
- Press the Power/Mode button to turn the unit on.
- Press and hold the Power/Mode button to turn the unit off.
5.2. Volume Control
- Rotate the Rotary Knob clockwise to increase volume.
- Rotate the Rotary Knob counter-clockwise to decrease volume.
5.3. Source Selection
- Press the Power/Mode button repeatedly to cycle through available sources: FM, USB, SD, AUX.
5.4. FM Tuner Operation
- Band Selection: In FM mode, press the Band button to switch between FM1, FM2, and FM3 bands.
- Automatic Seek: Press and hold the Seek/Track buttons to automatically search for the next strong station.
- Manual Seek: Short press the Seek/Track buttons to manually tune the frequency step by step.
- Preset Stations: The unit can store 18 FM preset stations (6 for each band). To store a station, tune to the desired frequency, then press and hold one of the numeric preset buttons (if available, or use the rotary knob menu) until you hear a beep.
5.5. USB/SD Playback
- Insert a USB drive into the USB Port or an SD card into the SD Card Slot. The unit will automatically switch to USB/SD mode and begin playback.
- Use the Seek/Track buttons to skip to the next or previous track.
- Press the Rotary Knob to access playback options (e.g., Play/Pause, Folder navigation).
5.6. Auxiliary Input (AUX)
- Connect an external audio device (e.g., smartphone, MP3 player) to the 3.5mm AUX Input using a stereo audio cable.
- Select AUX mode using the Power/Mode button.
- Control playback from the connected external device.
6. Maintenance
- Cleaning the Unit: Use a soft, dry cloth to wipe the front panel. For stubborn stains, dampen the cloth lightly with water. Never use harsh chemicals, solvents, or abrasive cleaners.
- USB/SD Card Care: Ensure USB drives and SD cards are handled carefully and inserted/removed correctly to prevent damage to the ports or the media.
- Preventing Overheating: Ensure the unit has adequate ventilation and is not obstructed by objects that could block airflow.
7. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| No power | Incorrect wiring; Blown fuse; Vehicle battery issue | Check power connections (yellow, red, black wires). Check the fuse. Ensure vehicle battery is charged. |
| No sound | Volume too low; Mute activated; Incorrect speaker wiring; Incorrect source selected | Increase volume. Check if mute is active. Verify speaker connections. Select the correct audio source. |
| Poor FM reception | Antenna not connected; Weak signal area; Damaged antenna | Ensure antenna is securely connected. Try tuning to a stronger station. Inspect antenna for damage. |
| USB/SD not playing | Unsupported file format; Corrupted media; Media not inserted correctly; Capacity exceeded | Ensure audio files are in a supported format (e.g., MP3). Try a different USB/SD card. Re-insert media. Ensure media size is within 32GB limit. |
| Unit gets hot | Inadequate ventilation; Speaker impedance mismatch | Ensure unit has proper airflow. Verify speaker impedance matches unit specifications. |
8. Specifications
- Model: RMD020
- Brand: Caliber
- Connectivity Technology: Auxiliary, USB
- Compatible Devices: Speaker
- Number of Channels: 5 (likely refers to audio processing, not speaker outputs)
- Control Method: Remote Control (Note: Remote control not explicitly mentioned in product description, but listed in specs)
- Max Power Output: 4 x 55 Watts
- Media Playback: USB, SD (up to 32GB)
- Tuner: FM with 18 preset stations
- Inputs: USB, SD, 3.5mm AUX Jack
- Outputs: RCA
- Installation: Integrated ISO connector
- Depth: 35 mm (ultra-shallow)
- ASIN: B01H7NDBZ8
9. Warranty and Support
For warranty information and technical support, please refer to the documentation provided with your purchase or visit the official Caliber website. Keep your proof of purchase for any warranty claims.
Information regarding spare parts availability and software updates is not available at this time.
