Wuzhi Audio ZK-1001B
Wuzhi Audio ZK-1001B Mono Amplifier Board User Manual
Model: ZK-1001B
Introduction
This manual provides detailed instructions for the installation, operation, and maintenance of your Wuzhi Audio ZK-1001B Mono Amplifier Board. Please read this manual thoroughly before using the product to ensure proper function and to prevent damage. The ZK-1001B is a high-power mono amplifier board featuring a TPA3116 chip, 100W output, and versatile input options including Bluetooth, USB, and AUX.
Safety Information
Observe the following safety precautions to prevent electric shock, fire, or damage to the device:
- Ensure the power supply voltage is within the specified range of 9-24V DC.
- Do not expose the amplifier board to moisture or extreme temperatures.
- Avoid short-circuiting the output terminals.
- Disconnect power before making any connections or adjustments.
- Keep out of reach of children.
- This device is designed for DIY audio projects; proper enclosure and ventilation are recommended.
Package Contents
Verify that all items are present in your package:
- Wuzhi Audio ZK-1001B Mono Amplifier Board x 1
- Screwdriver x 1
- DC Adapter Plug x 1
Note: The power amplifier board requires self-assembly of the DC adapter plug and speaker wires.
Product Overview
The Wuzhi Audio ZK-1001B is a compact and powerful mono amplifier board designed for various audio applications. It features multiple input options and robust protection functions.
Image: Detailed view of the ZK-1001B amplifier board highlighting key components such as the TPA3116D2 chip, heat sink, power input, speaker terminals, USB input, AUX input, and multifunction knob.
Key Features:
- High-Power Mono Amplifier: Equipped with an authentic TPA3116 amplifier chip, delivering up to 100W output power.
- Wide Voltage Input: Supports a 7-24V DC input voltage.
- TWS Pairing: Effortless True Wireless Stereo (TWS) pairing for syncing two amplifier boards for left/right channel sound.
- Triple Input Modes: Bluetooth 5.0 for wireless streaming, USB for direct playback (supports MP3/Wav/Wma/Flac/Ape), and 3.5mm AUX for wired devices.
- Protection Functions: Includes over-voltage, under-voltage, over-heat, short-circuit, input anti-reverse connection, over-current, and anti-static protection.
Setup
Follow these steps to set up your ZK-1001B amplifier board.
1. Power Connection
- Connect the provided DC adapter plug to your power supply (9-24V DC, ≥4A recommended).
- Connect the DC adapter plug to the DC7-24V input terminal on the amplifier board. Ensure correct polarity.
2. Speaker Connection
- Connect your passive speaker (20W-100W, 3Ω-8Ω) to the SPEAKER+ and SPEAKER- terminals on the board.
- Ensure correct polarity for optimal sound quality.
3. Audio Input Connection
The ZK-1001B supports Bluetooth, USB, and AUX inputs. Choose one method for audio playback.
Image: Illustration of the amplifier board with labels for 3.5mm AUX Input, Bluetooth Input, and USB Input, demonstrating the various connectivity options.
- Bluetooth: Power on the device. The TWS indicator light will flash. Search for "ZK-1001B" on your Bluetooth device and pair.
- USB: Insert a USB flash drive (FAT32 format) containing audio files into the USB-IN port. The amplifier will automatically play.
- AUX: Connect an audio source (e.g., smartphone, MP3 player) to the 3.5mm AUX-IN port using an audio cable.
Operating Instructions
Multifunction Knob/Volume Knob
The single knob on the amplifier board serves multiple functions:
- Rotate: Adjusts volume (clockwise for increase, counter-clockwise for decrease).
- Short Press: Play/Pause audio.
- Double Press: Skips to the Next Track.
- Triple Press: Enters/Exits TWS Mode.
- Long Press: Powers On/Off the amplifier.
TWS Stereo Pairing Guide
To achieve True Wireless Stereo (TWS) sound, you need two ZK-1001B amplifier boards of the same model.
Image: Step-by-step guide for TWS pairing, showing two amplifier boards and the process of designating left and right channels.
- Power On: Turn on both ZK-1001B amplifier boards.
- Initiate Pairing: Choose one amplifier to be the master. Triple-press its multifunction knob. The red TWS indicator light on this master unit will start flashing. The other amplifier will automatically attempt to pair. If pairing fails within 15 seconds, the mode will cancel automatically. Try again if needed.
- Successful Pairing: Once paired, the selected master amplifier becomes the Left channel (red light stays on), and the other amplifier becomes the Right channel (red light blinks slowly).
- Automatic Reconnection: On the next power-on, the units will reconnect automatically. To cancel pairing mode, triple-press the knob on either unit.
Specifications
Image: A table detailing the technical specifications of the ZK-1001B amplifier board, including Bluetooth version, chip, audio input/output, power supply range, speaker compatibility, protection features, and product dimensions.
| Feature | Detail |
|---|---|
| Bluetooth Version | 5.1 (Effective range 15 meters, no shielding) |
| Amplifier Chip | TPA3116D2 |
| Audio Input | AUX + Bluetooth + USB |
| Audio Output | Mono 100W |
| Power Supply Range | DC 7V-24V / ≥4A |
| Speaker Compatibility | 20W-100W, 3Ω-8Ω |
| Protection Features | Input anti-reverse connection, Over temperature, over-current, short circuit, anti-static protection. |
| Product Dimensions | 3.49 × 1.77 × 0.78 inches (89 × 45 × 20 mm) |
Maintenance
To ensure the longevity and optimal performance of your ZK-1001B amplifier board:
- Keep the board clean and free from dust. Use a soft, dry cloth for cleaning.
- Avoid exposing the board to direct sunlight or heat sources.
- Ensure adequate ventilation, especially if enclosed in a case, to prevent overheating.
- Do not attempt to modify the circuit board, as this may void any warranty and cause damage.
Troubleshooting
If you encounter issues with your amplifier board, refer to the following table:
| Problem | Possible Cause | Solution |
|---|---|---|
| No sound output | Incorrect power connection; Speaker not connected; Input source issue; Volume too low. | Check power supply and polarity; Verify speaker connections; Ensure audio source is playing and connected correctly; Increase volume. |
| Bluetooth not pairing | Amplifier not in pairing mode; Device too far; Interference. | Long press knob to power on, then ensure TWS indicator is flashing; Move device closer to amplifier; Reduce interference from other wireless devices. |
| Distorted sound | Volume too high; Insufficient power supply; Speaker impedance mismatch. | Reduce volume; Use a power supply with sufficient current (≥4A); Ensure speaker impedance is 3Ω-8Ω. |
| TWS pairing fails | Incorrect pairing steps; Units too far apart. | Follow TWS pairing guide carefully (triple-press knob on master); Ensure both units are powered on and close to each other. |
| USB playback not working | USB drive format incorrect; Unsupported audio file format. | Ensure USB drive is FAT32 format; Verify audio files are MP3/Wav/Wma/Flac/Ape. |
Warranty and Support
Wuzhi Audio products are backed by reliable customer service. If you have any questions or encounter issues with your ZK-1001B amplifier board, please contact our customer support team. We are committed to providing a satisfactory resolution.
For support, please refer to the contact information provided with your purchase or visit the official Wuzhi Audio website.