1. 서론
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.
주요 특징은 다음과 같습니다.
- 무선 오디오 스트리밍을 위한 Bluetooth 5.0.
- Support for USB, TF Card, and AUX input.
- FM 라디오 기능이 내장되어 있습니다.
- Digital color screen display for easy monitoring.
- Infrared remote control for convenient operation.
- Power-off memory function to resume playback.

이미지 1.1: 앞면 view of the Zerone Bluetooth MP3 Decoder Board, showing the display, USB port, TF card slot, AUX input, and control buttons.
2. 패키지 내용
패키지에 모든 품목이 들어 있는지 확인하세요.
- 1 x Zerone MP3 Decoder Module
- 1 x 원격 제어
- 4 x Wiring Cables

Image 2.1: The Zerone MP3 Decoder Board, its remote control, and included wiring cables.
3. 설정 및 배선
Careful wiring is essential for proper function. Ensure the device is powered off before making any connections.
3.1 전원 공급 장치 연결
- 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 Audio Input/Output Connections
- 오디오 출력: Connect L-OUT (Left Output) and R-OUT (Right Output) to your audio amplifier or speakers. AGND is the audio ground.
- 오디오 입력(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 FM 안테나 연결
- 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 amp리퍼.
4. 사용 설명서
The decoder board can be operated using the onboard buttons or the included infrared remote control.
4.1 전원 켜기/끄기
- Connect the power supply to turn on the module. Disconnect to power off.
4.2 모드 선택
- Press the 'MODE' button on the board or remote to cycle through available modes: Bluetooth, USB, TF Card, FM Radio, and AUX.
4.3 블루투스 페어링
- 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'.
- 페어링이 완료되면 기기에서 무선으로 오디오를 스트리밍할 수 있습니다.

Image 4.1: Illustration of pairing a smartphone with the 'BT-SPEAKER' device to play music.
4.4 USB/TF 카드 재생
- 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 FM 라디오
- 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 AUX 입력
- 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 볼륨 조절
- Adjust the volume using the 'VOL-' and 'VOL+' buttons on the board or the remote control.
4.8 전원 끄기 메모리
- 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. 유지관리
To ensure the longevity and optimal performance of your decoder board, follow these maintenance guidelines:
- 기기를 건조한 곳에 보관하세요. 습기나 액체에 노출되지 않도록 하세요.
- 부드럽고 마른 천으로 표면을 닦으십시오. 독한 화학 약품이나 연마성 세척제를 사용하지 마십시오.
- Avoid exposing the module to extreme temperatures or direct sunlight for extended periods.
- Handle the wiring connections carefully to prevent damage.
6. 문제 해결
If you encounter issues with your Zerone MP3 Decoder Board, refer to the following common problems and solutions:
- 전원 없음:
- Check all power connections to ensure they are secure and correctly wired (VCC+ to positive, GND- to negative).
- 전원 공급 장치가 올바른 전압을 공급하는지 확인하십시오.tag(DC 6V-12V).
- 오디오 출력 없음:
- Ensure the audio output cables (L-OUT, R-OUT, AGND) are correctly connected to your ampliifier 또는 스피커.
- 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.
- 블루투스 연결/페어링 안 됨:
- Ensure the decoder board is in Bluetooth mode.
- Make sure your mobile device's Bluetooth is enabled and within the 15-meter receiving distance.
- 검색 'BT-SPEAKER' in your device's Bluetooth settings.
- Try restarting both the decoder board and your mobile device.
- 윙윙거리는 소리:
- A buzzing sound can sometimes indicate power supply issues or grounding problems. Ensure proper grounding.
- 입력 볼륨 확인tage 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.
- USB/TF 카드가 인식되지 않습니다:
- 확인하십시오 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.
- 미디어 문제인지 확인하기 위해 다른 USB 드라이브나 TF 카드를 사용해 보세요.
7. 사양
| 특징 | 사양 |
|---|---|
| 모델 번호 | Zerone0esoq1dkuv |
| 블루투스 버전 | 5.0 |
| 수신 거리 | 최대 15미터(49.21피트) |
| 전원 공급 장치 | 직류 6V-12V |
| 지원되는 오디오 형식 | MP3, WMA, WAV |
| 연결 옵션 | 블루투스, USB, TF 카드, AUX, FM 라디오 |
| 치수(길이 x 너비 x 높이) | 약 92 x 41 x 21mm(3.62 x 1.61 x 0.83인치) |
| 품목 무게 | 1.41 온스 |
| 제조업체 | 제론 |
8. 보증 및 지원
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.
