1. Introduzione
This manual provides detailed instructions for the installation, operation, and maintenance of your Zerone 12V Car Audio Bluetooth MP3 Decoder Board. This module is designed to upgrade conventional audio equipment, enabling playback of MP3, WMA, and WAV formats through multiple input options.
Le caratteristiche principali includono:
- Bluetooth 5.0 per lo streaming audio wireless.
- Support for USB, TF Card, and AUX input.
- Funzione radio FM integrata.
- Digital color screen display for easy monitoring.
- Infrared remote control for convenient operation.
- Power-off memory function to resume playback.

Immagine 1.1: anteriore view of the Zerone Bluetooth MP3 Decoder Board, showing the display, USB port, TF card slot, AUX input, and control buttons.
2. Contenuto della confezione
Si prega di verificare che tutti gli articoli siano presenti nel pacco:
- 1 x Zerone MP3 Decoder Module
- 1 x telecomando
- 4 x Wiring Cables

Image 2.1: The Zerone MP3 Decoder Board, its remote control, and included wiring cables.
3. Configurazione e cablaggio
Careful wiring is essential for proper function. Ensure the device is powered off before making any connections.
3.1 Collegamento dell'alimentazione
- The module requires a DC 6V-12V power supply.
- Connect the positive pole of the power supply to VCC(+) and the negative pole to GND(-).
3.2 Connessioni di ingresso/uscita audio
- Uscita audio: Connect L-OUT (Left Output) and R-OUT (Right Output) to your audio amplifier or speakers. AGND is the audio ground.
- Ingresso audio (AUX): For external audio sources, connect L-IN (Left Input) and R-IN (Right Input) to the audio output of your external device.
3.3 Collegamento dell'antenna FM
- Connect an appropriate FM antenna to the designated FM Antenna port for optimal radio reception.

Image 3.1: Detailed wiring diagram showing connections for power, audio input, audio output, and FM antenna.

Image 3.2: Diagram illustrating input power (DC5V-12V) and audio output connections to an amppiù vivace.
4. Istruzioni per l'uso
The decoder board can be operated using the onboard buttons or the included infrared remote control.
4.1 Accensione/spegnimento
- Connect the power supply to turn on the module. Disconnect to power off.
4.2 Selezione della modalità
- Press the 'MODE' button on the board or remote to cycle through available modes: Bluetooth, USB, TF Card, FM Radio, and AUX.
4.3 Associazione Bluetooth
- Switch the module to Bluetooth mode. The display will indicate 'BT' or similar.
- On your mobile device, search for Bluetooth devices and select 'BT-SPEAKER'.
- Una volta effettuata l'associazione, puoi riprodurre in streaming l'audio in modalità wireless dal tuo dispositivo.

Image 4.1: Illustration of pairing a smartphone with the 'BT-SPEAKER' device to play music.
4.4 Riproduzione tramite scheda USB/TF
- Insert a USB drive or TF card containing MP3, WMA, or WAV audio files into the respective slot. The module will automatically switch to the corresponding mode and begin playback.
4.5 Radio FM
- In FM mode, press the 'SCAN' button to automatically search and save available radio stations.
- Use the 'VOL-' and 'VOL+' buttons (or previous/next track buttons on the remote) to navigate between saved stations.
4.6 Ingresso AUX
- Connect an external audio device (e.g., smartphone, MP3 player) to the AUX input port using a 3.5mm audio cable.
- Switch the module to AUX mode.
4.7 Controllo del volume
- Adjust the volume using the 'VOL-' and 'VOL+' buttons on the board or the remote control.
4.8 Memoria di spegnimento
- The module retains the last played song and volume level when powered off, resuming from that point upon restart.

Image 4.2: Visual representation of the multi-function capabilities including music player, USB player, AUX audio input, FM radio, and TF card support.
5. Manutenzione
To ensure the longevity and optimal performance of your decoder board, follow these maintenance guidelines:
- Mantenere il dispositivo asciutto. Evitare l'esposizione a umidità o liquidi.
- Pulire la superficie con un panno morbido e asciutto. Non utilizzare prodotti chimici aggressivi o detergenti abrasivi.
- Avoid exposing the module to extreme temperatures or direct sunlight for extended periods.
- Handle the wiring connections carefully to prevent damage.
6. Risoluzione Dei Problemi
If you encounter issues with your Zerone MP3 Decoder Board, refer to the following common problems and solutions:
- Nessun potere:
- Check all power connections to ensure they are secure and correctly wired (VCC+ to positive, GND- to negative).
- Verificare che l'alimentatore fornisca la tensione correttatage (CC 6V-12V).
- Nessuna uscita audio:
- Ensure the audio output cables (L-OUT, R-OUT, AGND) are correctly connected to your amplifier o altoparlanti.
- Check the volume level on both the decoder board and your connected audio system.
- Confirm that the correct input mode (Bluetooth, USB, TF, AUX, FM) is selected.
- Bluetooth Not Connecting/Pairing:
- Ensure the decoder board is in Bluetooth mode.
- Make sure your mobile device's Bluetooth is enabled and within the 15-meter receiving distance.
- Cercare 'BT-SPEAKER' in your device's Bluetooth settings.
- Try restarting both the decoder board and your mobile device.
- Ronzio:
- A buzzing sound can sometimes indicate power supply issues or grounding problems. Ensure proper grounding.
- Verificare il volume immessotage is stable and within the recommended DC 6V-12V range. In some cases, a lower voltage (e.g., around 3V-5V) might reduce noise, but this is outside the specified operating range and may affect performance.
- La scheda USB/TF non funziona:
- Assicurare il files on the USB drive or TF card are in a supported format (MP3, WMA, WAV).
- Check that the USB drive or TF card is inserted correctly and fully.
- Prova un'altra unità USB o una scheda TF per escludere problemi multimediali.
7. Specifiche
| Caratteristica | Specificazione |
|---|---|
| Numero di modello | Zerone0esoq1dkuv |
| Versione Bluetooth | 5.0 |
| Distanza di ricezione | Fino a 15 metri (49.21 piedi) |
| Alimentazione elettrica | CC 6V-12V |
| Formati audio supportati | Formato MP3, WMA, WAV |
| Opzioni di connettività | Bluetooth, USB, TF Card, AUX, FM Radio |
| Dimensioni (L x P x A) | Circa 92 x 41 x 21 mm (3.62 x 1.61 x 0.83 pollici) |
| Peso dell'articolo | 1.41 once |
| Produttore | Zerone |
8. Garanzia e supporto
For warranty information and technical support, please refer to the documentation provided at the point of purchase or contact your retailer. The manufacturer is Zerone.