Daakro ZK-502L Bluetooth Amplifier Board Benutzerhandbuch

1. Einleitung

The Daakro ZK-502L is a high-fidelity 2.0 channel Bluetooth amplifier board designed for DIY audio projects. It delivers 50W + 50W output power, features dual audio input modes (Bluetooth 5.0 and AUX), and operates within a wide DC 9-24V voltage range. This manual provides detailed instructions for the proper setup, operation, and maintenance of your amplifier-Board.

2. Produktmerkmale

• Dual HiFi Chip: Utilizes two HiFi amplifier chips with PurePath technology for ultra-high resolution, low distortion, and high-fidelity sound.
• 2.0-Kanal-Ausgang: Supports left and right channel configuration, providing 50W output power per channel for an immersive sound experience.
• Dual Audio Input Modes: Seamlessly switch between Bluetooth 5.0 for wireless connectivity and traditional AUX input for wired audio sources.
• Breites Volumentage Reichweite: Compatible with DC 9-24V power supplies, allowing flexibility with 9V, 12V, 19V, or 24V sources.
• Lautsprecherkompatibilität: Suitable for 20-200W, 4-8Ω speakers, ensuring broad compatibility with various speaker sizes.
• Umfassender Schutz: Built-in mechanisms include over-voltage, unter-voltage, over-temperature, short-circuit, and reverse connection protection for device safety.
• Lautstärkeregelung: Integrated volume knob for easy adjustment of audio output.

3. Packungsinhalt

Bitte überprüfen Sie, ob alle unten aufgeführten Artikel in Ihrem Paket enthalten sind:

• ZK-502L Amplifier-Board
• Top and Bottom Acrylic Plates
• Mounting Hardware (Screws, Spacers, Nuts)
• Volume Knob Cap
• Gleichstromkabel
• Kleiner Schraubendreher

4. Komponentenidentifikation

Familiarize yourself with the various components and connection points on the ampVerstärkerplatine:

• Stromeingang (DC 9-24V): Connect your DC power supply here.
• Left Channel Output (-L +): Connect the left speaker here.
• Right Channel Output (-R +): Connect the right speaker here.
• Lautstärkeregelung: Drehknopf zur Einstellung des Audioausgangspegels.
• Bluetooth-Anzeige: LED-Leuchte zur Anzeige des Bluetooth-Status.
• AUX-Eingang: 3.5-mm-Klinkenbuchse für kabelgebundene Audioverbindung.

5. Technische Daten

6. Power Output Guidelines

The actual output power varies depending on the input voltage and speaker impedance. Refer to the table below for typical power output values:

Bitte beachten Sie: Optimal audio output requires sufficient audio input combined with appropriate power supply voltage and current. A higher voltage and current generally result in higher power output. For the same conditions, a smaller speaker impedance will yield greater power.

7. Einrichtungsanweisungen

Follow these steps to set up your Daakro ZK-502L ampVerstärkerplatine:

1. Montieren Sie das Casing (Optional): If your board came with acrylic plates, use the provided screws and spacers to assemble the protective casing around the amplifier-Board.
2. Lautsprecher anschließen: Connect your passive speakers to the Left Channel Output (-L +) and Right Channel Output (-R +) terminals. Ensure correct polarity (+ to + and - to -).
3. Stromversorgung anschließen: Connect a DC 9-24V power adapter (not included) to the Power Input jack. Ensure the power supply meets the voltage and current requirements for your desired output.
4. Anfangslautstärkeeinstellung: Turn the volume control knob counter-clockwise to its minimum position before powering on.

8. Bedienungsanleitung

The ZK-502L amplifier board supports two audio input modes:

8.1. Bluetooth-Modus

1. Einschalten: Stellen Sie sicher, dass amplifier board is powered on. The Bluetooth indicator LED will blink, indicating it is in pairing mode.
2. Paarung: On your audio source device (e.g., smartphone, tablet, PC), enable Bluetooth and search for available devices. Select "ZK-502L" from the list.
3. Verbindungsbestätigung: Once successfully paired, the Bluetooth indicator LED will stop blinking and remain solid.
4. Audio abspielen: Start playing audio on your connected device. Adjust the volume using the amplifier board's volume knob and your source device's volume controls.

8.2. AUX-Eingangsmodus

1. AUX-Kabel anschließen: Insert a 3.5mm audio cable (not included) into the AUX Input jack on the amplifier board. Connect the other end to your audio source device's headphone or audio output jack.
2. Automatische Umschaltung: Der amplifier board will automatically switch to AUX input mode when a cable is detected.
3. Audio abspielen: Start playing audio on your connected device. Adjust the volume using the amplifier board's volume knob and your source device's volume controls.

9. Sicherheitsvorkehrungen

• Stellen Sie sicher, dass die Stromversorgungslautstärketage is within the DC 9-24V range. Using an incorrect voltagDies kann zu Schäden am Gerät führen.
• Die Lautsprecherausgänge und den Stromeingang dürfen nicht kurzgeschlossen werden.
• Vermeiden Sie es, die Platine Feuchtigkeit, extremen Temperaturen oder direkter Sonneneinstrahlung auszusetzen.
• Handle the board with care to prevent damage to components.
• Vor dem Anschließen oder Trennen von Verbindungen die Stromzufuhr unterbrechen.
• Do not attempt to modify the circuit board, as this will void the warranty and may cause damage.

10. Fehlerbehebung

• Kein Ton:
  • Prüfen Sie, ob das Netzteil korrekt angeschlossen ist und die richtige Spannung liefert.tage.
  • Verify speaker connections for correct polarity and secure contact.
  • Stellen Sie sicher, dass der Lautstärkeregler an beiden Geräten aufgedreht ist. amplifier board and the audio source device.
  • If using Bluetooth, ensure the device is paired and connected. If using AUX, ensure the cable is fully inserted.
• Verzerrter Klang:
  • Verringern Sie die Lautstärke an beiden Stellen. ampVerstärker und Quellgerät.
  • Ensure the power supply can provide sufficient current for the desired output power.
  • Check speaker impedance compatibility (4-8Ω).
• Bluetooth-Trennung:
  • Ensure the audio source device is within the 16.4 feet (5 meters) Bluetooth range.
  • Vermeiden Sie Hindernisse, die das Bluetooth-Signal stören könnten.
  • Versuchen Sie, das Gerät zu entkoppeln und anschließend erneut zu koppeln.
• Power Indicator Not On:
  • Check the power supply connection and ensure it is functioning.
  • Verify that the power input terminals are correctly wired.

11. Garantie und Support

Daakro provides the following support for your ZK-502L ampVerstärkerplatine:

• 30 Tage Garantie: Für Ihr Produkt gilt eine 30-tägige Garantie ab Kaufdatum.
• 24 Hours Online Customer Service: For any inquiries or technical assistance, please contact Daakro customer support.
• 100% Kundenzufriedenheit: Daakro is committed to ensuring your satisfaction with their products.

For further assistance, please visit the official Daakro store or contact their customer service team.