Introduction
This manual provides detailed instructions for the safe and efficient operation of your Trevi CMP 512 DAB Portable CD Boombox. Please read this manual thoroughly before using the device and retain it for future reference.

Front view of the Trevi CMP 512 DAB Portable CD Boombox in turquoise, showing the CD compartment, display, and control buttons.
Product Overview
The Trevi CMP 512 DAB is a versatile portable stereo system designed for various audio playback options.
Key Features:
- CD Player: Supports MP3, CD, CD-R/RW formats.
- Digital Radio Receiver: DAB / DAB+ waveband for digital radio stations.
- High-Readability Display: Dot Matrix display with blue backlight.
- USB Input: Direct playback of MP3 files from USB devices.
- AUX-IN Input: For connecting external audio sources.
- Headphone Jack: For private listening.
- Adjustable Telescopic Antenna: For optimal radio reception.
- Remote Control: Included for convenient operation.
- Power Options: Operates on 230V ~ 50Hz AC power or 4 'C' (UM2) batteries.

Angled front view of the boombox, highlighting the stereo speakers and central control panel.
Setup
Power Connection:
- AC Power: Connect the AC power cord to the AC inlet on the unit and then to a standard 230V ~ 50Hz wall outlet.
- Battery Power: For portable use, open the battery compartment on the bottom of the unit. Insert 4 'C' (UM2) batteries, ensuring correct polarity (+/-). Close the compartment securely.
Antenna Setup:
Extend the telescopic antenna fully for optimal DAB/DAB+ and FM radio reception. Adjust its position for the best signal quality.
Initial Power On:
Press the POWER button (usually labeled "FUN" or a power symbol) to turn on the unit. The display will light up.
Operating Instructions
CD Playback:
- Open the CD compartment cover.
- Place a CD (MP3, CD, CD-R/RW) onto the spindle with the label side facing up.
- Close the CD compartment cover.
- Press the MODE or FUNCTION button to select "CD" mode.
- Press the PLAY/PAUSE button to start playback.
- Use the SKIP buttons (<< / >>) to navigate between tracks.
- Adjust volume using the VOL- / VOL+ buttons.
DAB/DAB+ Radio Operation:
- Extend the telescopic antenna.
- Press the MODE or FUNCTION button to select "DAB" mode.
- The unit will automatically scan for available DAB/DAB+ stations on first use or if no stations are stored.
- Use the PRESET or TUNE buttons to browse through available stations.
- Press ENTER to select a station.
- Adjust volume using the VOL- / VOL+ buttons.
FM Radio Operation:
- Extend the telescopic antenna.
- Press the MODE or FUNCTION button to select "FM" mode.
- Press and hold the TUNE buttons (<< / >>) to auto-scan for the next available station. Briefly press to fine-tune.
- Adjust volume using the VOL- / VOL+ buttons.
USB Playback:
- Insert a USB flash drive containing MP3 files into the USB port.
- Press the MODE or FUNCTION button to select "USB" mode.
- The unit will automatically begin playing MP3 files.
- Use the SKIP buttons (<< / >>) to navigate between tracks.
- Adjust volume using the VOL- / VOL+ buttons.
AUX-IN Connection:
- Connect an external audio device (e.g., smartphone, MP3 player) to the AUX-IN port using a 3.5mm audio cable (not included).
- Press the MODE or FUNCTION button to select "AUX" mode.
- Playback is controlled from the connected external device.
- Adjust volume using the VOL- / VOL+ buttons on the boombox, and also on the external device.
Headphone Use:
Plug standard 3.5mm headphones into the headphone jack for private listening. Speakers will be muted automatically.
Remote Control:
The included remote control allows for convenient operation of most functions from a distance. Ensure the remote has working batteries and is pointed towards the front of the boombox.
Maintenance
- Cleaning: Use a soft, dry cloth to clean the exterior of the unit. Do not use abrasive cleaners or solvents.
- CD Lens Care: If CD playback issues occur, use a commercially available CD lens cleaner disc. Do not touch the CD lens directly.
- Storage: When not in use for extended periods, remove batteries and store the unit in a cool, dry place away from direct sunlight and extreme temperatures.
- Antenna: Handle the telescopic antenna with care to prevent bending or breakage.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Unit does not power on. | No AC power or depleted batteries. | Check AC power connection or replace batteries. |
| No sound from speakers. | Volume too low, headphones connected, or incorrect source selected. | Increase volume, disconnect headphones, or select the correct input source (CD, DAB, FM, USB, AUX). |
| CD does not play or skips. | CD is dirty, scratched, or inserted incorrectly. | Clean the CD, try another CD, or reinsert the CD correctly. |
| Poor radio reception. | Antenna not extended or poor signal area. | Fully extend and adjust the telescopic antenna. Try moving the unit to a different location. |
| USB playback issues. | USB drive not formatted correctly, unsupported file type, or drive not inserted properly. | Ensure USB drive is FAT32 formatted and contains MP3 files. Reinsert the USB drive. |
| Remote control not working. | Batteries depleted or remote not pointed at the unit. | Replace remote control batteries. Ensure line of sight to the unit's sensor. |
Specifications
| Brand | Trevi |
| Model Number | CMP 512 DAB |
| Color | Turquoise |
| Connectivity Technology | USB |
| Speaker Type | Stereo |
| Dimensions (L x W x H) | 24 x 23 x 13 cm |
| Power Source | AC (230V ~ 50Hz) / Battery (4 x 'C' (UM2) batteries) |
| Supported Standards | MP3 |
| Compatible Devices | Portable multimedia devices |
| Bluetooth Compatibility | No |
Warranty and Support
For warranty information, please refer to the documentation provided with your purchase or contact Trevi customer support directly.
Information regarding spare parts availability and guaranteed software updates is not available in the provided product details. For specific inquiries, please contact Trevi customer service.





