Daakro ZK-MT21 2.1 Channel Bluetooth Ampliifier Board Instruction Manual

Introduction

This manual provides detailed instructions for the setup, operation, and maintenance of your Daakro ZK-MT21 2.1 Channel Bluetooth Amplifier Board. Designed for DIY audio enthusiasts, this board offers high-fidelity sound with versatile input options and comprehensive protection features. Please read this manual thoroughly before use to ensure proper functionality and longevity of your device.

Кутуда эмне бар

Пакетти ачканда, бардык компоненттер бар экенин текшериңиз:

• Ampкөтөргүч такта
• Screwdriver (for wiring connections)
• DC Power адаптер туташтыргычы
• Knobs (5 pieces)
• Орнотуу жабдуулары (бурамалар, тирөөчтөр)

Image: The Daakro ZK-MT21 amplifier board and included accessories, including a screwdriver, DC power connector, knobs, and mounting hardware.

Негизги өзгөчөлүктөрү

• Dual HiFi Chip Technology: Utilizes two HiFi amplifier chips with PurePath technology for ultra-high resolution, ultra-low distortion, and high-fidelity sound.
• 2.1-Channel Configuration: Supports left channel (50W), right channel (50W), and subwoofer output (up to 100W) for an immersive sound experience.
• Dual Audio Input Modes: Features both Bluetooth 5.0 for wireless connectivity and a traditional AUX input for wired audio sources.
• Wide Application Voltage: Compatible with DC 9V to 24V power supplies, suitable for 30-200W, 4-8Ω speakers.
• Комплекстүү коргоо: Камтылган ашык-томtage, томдун астындаtage, over-temperature, short-circuit, and reverse connection protection mechanisms ensure device safety.

Орнотуу нускамалары

Follow these steps to correctly set up your ZK-MT21 ampкөтөргүч такта:

1. Speaker Connections

1. Identify the speaker terminals on the amplifier board. There are terminals for Left (L), Right (R), and Subwoofer (S) channels, each with positive (+) and negative (-) connections.
2. Connect your speakers to the corresponding terminals. Ensure correct polarity (positive to positive, negative to negative) for optimal sound quality.
3. Use the provided screwdriver to securely fasten the speaker wires into the terminals.

Image: A detailed diagram illustrating the connection points for the subwoofer, right channel, left channel, Bluetooth 5.0 antenna, AUX input, and DC 12-24V power input on the ZK-MT21 amplifier board. Key components like the low noise front stagэ оперативдуу amplifier, large-capacity energy storage capacitor, and heat sinks are also labeled.

2. Электр кубатын кошуу

1. Connect a DC power supply (9V-24V) to the DC 12-24V input terminal. The provided DC power adapter connector can be used for this purpose.
2. кубат менен камсыз кылуу Voltage requirements of your speakers and the amplifier board for optimal performance.

Маанилүү: Optimal audio output requires the correct combination of adequate audio input with appropriate power supply voltage and current. Different loudspeaker impedances affect relative sound power. A loudspeaker with a higher impedance will produce less relative sound power with sufficient voltage and current. Please be aware of these factors to optimize your audio experience.

3. Аудио киргизүү

The ZK-MT21 supports two audio input modes:

• Bluetooth 5.0: For wireless connection, ensure the Bluetooth antenna is properly connected (if external).
• AUX киргизүү: Connect your audio source (e.g., phone, TV, laptop) using a 3.5mm audio cable to the AUX-IN port.

Image: The ZK-MT21 amplifier board with icons representing Bluetooth 5.0 input and 3.5mm AUX input, along with devices like a tablet, mobile phone, and computer, illustrating its versatile connectivity.

4. Attaching Knobs

Gently push the provided knobs onto the control shafts for Subwoofer Frequency, Subwoofer Volume, R&L Treble, R&L Bass, and Main Volume.

Image: The ZK-MT21 amplifier board shown with all five control knobs attached, highlighting the main volume, R&L bass, R&L treble, subwoofer volume, and subwoofer frequency controls.

Видеону орнотуу

Watch this video for a visual guide on connecting the speakers and power to the ampкуткаруучу такта.

Иштөө нускамалары

Бир жолу amplifier board is set up, follow these steps to operate it:

1. Күйгүзүү

Flip the power switch to the "ON" position. A blue indicator light will illuminate, indicating the board is powered on.

2. Bluetooth Жупташтыруу

1. Ensure your audio source device (e.g., smartphone) has Bluetooth enabled.
2. Издөө жеткиликтүү Bluetooth түзмөктөрү. amplifier board will appear as "BT SZM" or a similar identifier.
3. Жупташтыруу үчүн түзмөктү тандаңыз. Туташтырылгандан кийин, аудиону зымсыз агылта аласыз.

Image: The ZK-MT21 amplifier board wirelessly connected to a smartphone via Bluetooth, demonstrating the range of up to 16.4 feet (5 meters).

3. AUX киргизүүсүн колдонуу

If using the AUX input, simply connect your audio device with a 3.5mm cable. The board will automatically switch to AUX mode if a cable is detected.

4. Adjusting Audio Controls

• Негизги көлөмү: Жалпы чыгаруу көлөмүн тууралайт.
• R&L Bass/Treble: Controls the bass and treble levels for the left and right channels.
• Subwoofer Volume/Frequency: Adjusts the subwoofer's volume and crossover frequency.

Experiment with these controls to achieve your desired sound profile.

Operation Video Guide

This video demonstrates the operation of the amplifier board, including power-on, Bluetooth pairing, and adjusting the various audio controls.

Техникалык шарттар

Image: A table detailing the power output of the ZK-MT21 amplifier board based on input voltage and speaker impedance for both R&L channels and the subwoofer output. For example, at 24V with 4Ω speakers, R&L channels output 50W each, and the subwoofer outputs 100W.

Проблемаларды чечүү

If you encounter issues with your ZK-MT21 amplifier board, refer to the following common troubleshooting steps:

• Кубат жок:
  • Ensure the power supply is correctly connected and within the 9V-24V DC range.
  • Кубат өчүргүчтүн "ON" абалында экенин текшериңиз.
  • Кубат адаптери туура иштеп жатканын текшериңиз.
• Үн чыгышы жок:
  • Confirm speaker wires are securely connected to the correct terminals with proper polarity.
  • Check if the audio source is playing and its volume is turned up.
  • камсыз кылуу amplifier's main volume knob is turned up.
  • If using Bluetooth, verify the device is successfully paired and connected.
  • AUX колдонулуп жаткан болсо, кабелдин толук киргизилгендигин жана иштешин текшериңиз.
• Бурмаланган үн:
  • Аудио булагыңыздан келген киргизүү үнүн азайтыңыз.
  • төмөндөтүңүз amplifier's main volume.
  • Check speaker impedance compatibility (4-8Ω).
  • Ensure the power supply is stable and provides sufficient current.
• Bluetooth ажыратуу:
  • Ensure the audio source device is within the Bluetooth range (up to 16.4 feet/5 meters).
  • Bluetooth сигналына тоскоол болушу мүмкүн болгон тоскоолдуктардан алыс болуңуз.
  • Түзмөктү жупташып, кайра жупташып көрүңүз.

Техникалык тейлөө

To ensure the longevity and optimal performance of your ZK-MT21 ampкөтөргүч тактасын тейлөө боюнча төмөнкү көрсөтмөлөрдү аткарыңыз:

• Тазалоо: Use a soft, dry cloth to wipe the surface of the board. Avoid using liquid cleaners or solvents, as they may damage the components.
• Вентиляция: камсыз кылуу amplifier board is placed in a well-ventilated area to prevent overheating. Do not block the heat sinks.
• Сактагыч: When not in use for extended periods, store the board in a cool, dry place away from direct sunlight and extreme temperatures.
• Байланыштары: Мезгил-мезгили менен бардык зымдарды байланыштарды текшерип туруңуз, алар бекем жана коррозиядан таза.

Кепилдик жана колдоо

Daakro is committed to providing high-quality audio-visual systems. Your ZK-MT21 amplifier board comes with a 30-day warranty. For any questions, technical assistance, or support, please contact our online customer service. We aim for 100% customer satisfaction and are available to assist you within 24 hours.

For more information and to explore other Daakro products, visit the Daakro Store on Amazon.