AC6921

Kebidu 12V LCD MP3 Decoder DAC Bluetooth V5.0 Audio Receiver User Manual

Model: AC6921 | Brand: Generic

1. Producte acabatview

The Kebidu 12V LCD MP3 Decoder is a multi-functional digital audio player designed for car and vehicle electronics. It integrates Bluetooth 5.0 for stable wireless connections, an MP3/WMA/WAV/FLAC/APE decoder, FM radio, and a recording function. The unit supports USB drives and TF/SD cards up to 32GB for media playback and features an AUX input for external audio sources. A clear LCD screen displays information, including synchronized lyrics, and a remote control is included for convenient operation.

Kebidu 12V LCD MP3 Decoder with remote control and wiring harnesses

Figure 1.1: The Kebidu 12V LCD MP3 Decoder unit, its remote control, and included wiring harnesses.

Diagram showing key features of the Bluetooth 5.0 car kit: Music Player, USB player, AUX audio input, Bluetooth, FM radio, TF memory

Figura 1.2: Mésview of the multi-functional features including Bluetooth 5.0, USB, TF, AUX, and FM radio capabilities.

2. Especificacions tècniques

IC de control principalAC6921
IC BluetoothAC6921
Versió Bluetooth5.0
Formats de música compatiblesMP3 / WMA / WAV / FLAC / APE (lossless)
Freqüència de ràdio FM87.5-107.5 MHZ
USB/TF Card SupportMàxim 32 GB
Font d'alimentacióDC 12V
Dimensions del panell112 mm (llargada) x 62 mm (amplada)
Board Depth22 mm
Dimensions del producte11.2 x 6.2 x 2.2 cm
MaterialPlàstic, metall

3. Components i controls

3.1 Main Unit Interface

Labeled diagram of the Kebidu MP3 Decoder main unit with numbered components

Figure 3.1: Front panel layout and numbered functions.

  1. IR: Infrared receiver module for remote control.
  2. MIC: Microphone for call and recording functions.
  3. Interfície USB: Connect to a U disk (maximum support 32GB).
  4. Pantalla LCD: Displays synchronized lyrics and operational information.
  5. Ranura per a targeta SD: Connect to an SD memory card (maximum support 32GB).
  6. Interfície AUX: Audio input interface for external devices.
  7. Pom de volum: Controls the audio output volume.
  8. REC: Long press to start recording. Press again to stop recording and play the recorded file. Requires a storage device (U disk or TF card).
  9. REPETIR: Press once for single song repeat. Press again to cancel and play sequentially.
  10. PREV/: Short press for previous song. Long press for rewind.
  11. REPRODUCCIÓ/PAUSA: Short press to toggle play/pause. Long press for FM radio automatic station scan.
  12. SEGÜENT: Prem breument per a la següent cançó. Premeu llargament per avançar ràpidament.
  13. Mode: Switches between USB / TF / FM / AUX / BLUETOOTH modes.

3.2 Control remot

The included remote control provides convenient access to all major functions of the decoder unit from a distance.

Hand holding the remote control for the Kebidu MP3 Decoder

Figure 3.2: The remote control unit.

4. Configuració i instal·lació

4.1 Esquema de cablejat

Refer to the diagram below for proper connection of power and audio signals. Ensure all connections are secure before powering on the device.

Wiring diagram for the Kebidu MP3 Decoder showing power input, audio input, and audio output connections

Figure 4.1: Back panel wiring connections.

4.2 Muntatge

The panel is surrounded by screw holes for easy mounting into a compatible enclosure or dashboard. The board depth is 22mm, so ensure sufficient space for installation.

5. Instruccions de funcionament

5.1 Funcionament bàsic

5.2 Canvi de mode

Premeu el botó MODE button on the front panel or remote control to cycle through available modes: USB → TF → FM → AUX → BLUETOOTH.

Reproducció de targetes USB/TF de 5.3

5.4 Funcionament Bluetooth

5.5 Ràdio FM

Kebidu MP3 Decoder display showing FM radio mode with 91.1MHz frequency

Figure 5.1: LCD screen displaying FM radio frequency.

5.6 Funció d'enregistrament

5.7 Lyrics Display

The LCD screen supports synchronized lyrics display for compatible audio files. Ensure your audio files have embedded lyrics for this feature to work.

6. Manteniment

7. Solució De Problemes

ProblemaCausa possibleSolució
Sense poderIncorrect power connection; insufficient voltage.Check 12V DC power supply and wiring connections. Ensure correct polarity.
Sense sortida de soIncorrect audio output connection; volume too low; wrong mode selected.Verify audio output wiring. Increase volume. Press MODE button to select correct source.
Bluetooth no connectatUnit not in Bluetooth mode; device not discoverable; interference.Switch to Bluetooth mode. Ensure Bluetooth is enabled on your device and it's in pairing mode. Move closer to the unit.
USB/TF card not readingUnsupported format; card/drive corrupted; capacity exceeded.Assegureu-vos files are MP3/WMA/WAV/FLAC/APE. Check card/drive for errors. Ensure capacity is not over 32GB.
Mala recepció de ràdio FMNo antenna connected; weak signal.Connect an external FM antenna. Try repositioning the antenna or the unit.

8. Garantia i Suport

This product is covered by a standard manufacturer's warranty against defects in materials and workmanship. Please retain your proof of purchase for warranty claims.

For technical support, troubleshooting assistance, or warranty inquiries, please contact your retailer or the manufacturer's customer service department. Refer to the product packaging or retailer's weblloc web per obtenir informació de contacte específica.

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