MakerHawk ZK-TB21 Bluetooth Amplifier Board Uživatelská příručka

1. Úvod

This manual provides detailed instructions for the installation, operation, and maintenance of the MakerHawk ZK-TB21 Bluetooth Amplifier Board. This module is a high-fidelity stereo 2.1 channel audio power amplifier utilizing the TPA3116D2 chip, designed for various audio applications including home theater systems and custom speaker projects. It offers both Bluetooth 5.0 and AUX audio input methods, along with independent controls for bass, treble, and subwoofer frequency.

MakerHawk ZK-TB21 Bluetooth Ampzáchranná deska se šroubovákem — Image 1.1: The assembled MakerHawk ZK-TB21 Bluetooth Amplifier Board, shown with its control knobs and an included screwdriver for assembly.

2. Obsah balení

Please verify that all items listed below are included in your package. If any components are missing or damaged, please contact customer support.

Diagram showing all components included with the ZK-TB21 ampzvedavější deska — Image 2.1: A visual representation of all components included in the ZK-TB21 package, including the main board, top and bottom plates, knobs, standoffs, screws, and a screwdriver.

MakerHawk ZK-TB21 Amplifikační deska
Top and Bottom Acrylic Protection Plates
Control Knobs (5 pieces)
Standoffs and Screws for assembly
Malý šroubovák
DC Head Lead (for power connection)

3. Konec produktuview

The ZK-TB21 amplifier board features a logical layout for easy connection and control. Familiarize yourself with the various components and their functions.

Detailed diagram of the ZK-TB21 amplifier board components and controls — Image 3.1: An annotated diagram highlighting the various controls, input/output ports, and key components of the ZK-TB21 amplifikační deska.

3.1. Ovládací prvky a indikátory

Hlavní hlasitost: Upravuje celkovou výstupní hlasitost.
Výšky levého a pravého kanálu: Upravuje vysokofrekvenční odezvu hlavních stereo kanálů.
Basy levého a pravého kanálu: Upravuje nízkofrekvenční odezvu hlavních stereo kanálů.
Hlasitost subwooferu: Adjusts the output volume specifically for the subwoofer channel.
Subwoofer Frequency (FREQ): Adjusts the crossover frequency for the subwoofer, determining the upper limit of frequencies sent to the subwoofer.
Indikátor Bluetooth: Illuminates when Bluetooth is active and paired.

3.2. Vstupní/výstupní porty

Napájení DC 12-24V: Connects to the external power supply.
AUX-IN (3.5mm Audio Port): For wired audio input from devices like smartphones, PCs, or CD players.
BT (Bluetooth): For wireless audio input from Bluetooth-enabled devices.
Speaker Outputs (L+, L-, R+, R-): Connects to passive left and right stereo speakers.
Subwoofer Output (S+, S-): Připojuje se k pasivnímu subwooferu.

4. Specifikace

Funkce	Specifikace
Číslo modelu	ZK-TB21
Ampliifier Chip	TPA3116D2 (Class D)
Kanály	2.1 (Left, Right, Subwoofer)
Výstupní výkon	2 x 50W (Stereo) + 1 x 100W (Subwoofer)
Vstupní objemtage	DC 12V - 24V
Audio Input Methods	Bluetooth 5.0, AUX (3.5mm)
Rozměry (D x Š x V)	4.65 x 3.94 x 0.87 palce (118 x 100 x 22 mm)
Hmotnost	6.88 unce (195 gramů)
Ochranné mechanismy	Short-circuit, Thermal, Overvoltage, Undervoltage, DC Protection

Dimensions of the ZK-TB21 ampzvedavější deska — Image 4.1: The ZK-TB21 amplifier board with its key dimensions indicated, showing its compact size.

5. Nastavení

Follow these steps to assemble and connect your amplifikační deska.

5.1. Montáž

Carefully unpack all components from the package.
Place the bottom acrylic plate on a flat surface.
Zarovnejte amplifier board with the standoffs and secure it to the bottom plate using the provided screws.
Attach the control knobs to their respective shafts on the amplifikační deska.
Place the top acrylic plate over the board, aligning the holes, and secure it with the remaining screws.

5.2. Připojení napájení

The ZK-TB21 requires a DC power supply between 12V and 24V. Ensure your power supply can provide sufficient current for your speakers (e.g., a 24V, 10A power supply is recommended for maximum output).

Connect the DC power adapter to the DC 12-24V input port on the amplifikační deska.
Alternatively, use the provided DC head lead to connect to a compatible power source, ensuring correct polarity.

5.3. Připojení reproduktoru

Connect your passive speakers and subwoofer to the appropriate terminal blocks. Ensure correct polarity (+ to + and - to -) for optimal sound quality.

Stereo reproduktory: Connect the left speaker wires to the L+ and L- terminals, and the right speaker wires to the R+ and R- terminals.
subwoofer: Connect the subwoofer wires to the S+ and S- terminals.

6. Návod k obsluze

6.1. Zapnutí/vypnutí

Once the power supply is connected, the amplifier board will power on automatically. To turn off, disconnect the power supply.

6.2. Audio Input Selection

The ZK-TB21 supports two audio input methods: Bluetooth and AUX.

Diagram showing audio input options for the ZK-TB21 ampzvedavější deska — Obrázek 6.1: amplifier board highlighting the AUX-IN and Bluetooth input options, compatible with various devices like smartphones, tablets, and PCs.

6.2.1. Připojení Bluetooth

Zajistěte amplifier board is powered on.
Na zařízení, které je zdrojem zvuku (např. chytrý telefon, tablet), povolte Bluetooth a vyhledejte dostupná zařízení.
Select "BT-AUDIO" or a similar name from the list of devices to pair.
Once paired, the Bluetooth indicator on the amplifier board will illuminate, and you can play audio wirelessly.

Person using a smartphone to stream music via Bluetooth to the ampzvedavější deska — Image 6.2: A user wirelessly streaming music from a smartphone to the ZK-TB21 amplifier board, which is connected to a pair of stereo speakers.

6.2.2. Vstup AUX

Connect a 3.5mm audio cable from your audio source device to the AUX-IN port on the amplifikační deska.
The amplifier will automatically switch to AUX input when a cable is detected.

6.3. Úprava nastavení zvuku

Use the control knobs to fine-tune your audio output:

Otočte Hlavní hlasitost knob to adjust the overall loudness.
Upravte Ztrojnásobit a Bas knobs for the left and right channels to achieve your desired tonal balance.
Použijte Hlasitost subwooferu knob to control the bass intensity.
Upravte Subwoofer Frequency (FREQ) knob to set the crossover point for the subwoofer, typically between 20Hz and 200Hz.

7. Ochranné prvky

The TPA3116D2 amplifier chip incorporates several protection mechanisms to ensure reliable operation and prevent damage to the device and connected components.

ZK-TB21 amplifier board highlighting the heat sink and protection mechanisms — Image 7.1: The ZK-TB21 amplifier board with its heat sink, illustrating the cooling and protection features of the TPA3116D2 chip.

Ochrana proti zkratu: Automatically detects and protects against short circuits at the speaker outputs.
Tepelná ochrana: Monitors the chip's temperature and reduces output or shuts down if overheating occurs.
Přepětítage ochrana: Safeguards the circuit from damage due to excessively high input voltage.
Podpětítage ochrana: Prevents unstable operation or damage from insufficient input voltage.
DC Protection: Protects speakers from harmful DC offset in the audio signal.

In the event of an overload or fault condition, the device is designed to report the condition and protect itself from damage.

8. Řešení problémů

If you encounter issues with your MakerHawk ZK-TB21 ampdeska záchranáře, viz následující běžné problémy a jejich řešení:

Problém	Možná příčina	Řešení
Žádný zvukový výstup	No power; incorrect speaker wiring; input source issue; volume too low.	Check power connection and supply voltage (12-24V DC). Verify speaker wire polarity and secure connections. Ensure audio source is playing and connected correctly. Increase main volume.
Špatná kvalita zvuku / zkreslení	Insufficient power supply; speaker impedance mismatch; volume too high; poor audio source quality.	Use a power supply within the recommended voltage range (12-24V) with adequate current (e.g., 24V 10A). Ensure speaker impedance is compatible (4Ω recommended). Reduce volume. Test with a different audio source.
Problémy s připojením Bluetooth	Device too far; interference; ampZařízení Liferier není v režimu párování.	Ensure your device is within close range (within 10 feet) and has a clear line of sight to the amplifier. Disconnect and reconnect Bluetooth. Try pairing with a different device.
Hučení nebo bzučení	Ground loop; interference from power supply or audio source.	Ensure all components are properly grounded. Try a different power supply. If using AUX, consider an audio isolation transformer.
AmpŽivotní styl se náhodně vypíná	Overheating; power supply instability; protection circuit activation.	Ensure adequate ventilation around the heat sink. Verify power supply stability and current capability. Reduce load or volume.

9. Údržba

To ensure the longevity and optimal performance of your MakerHawk ZK-TB21 ampzáchranné desky, dodržujte tyto pokyny pro údržbu:

Čištění: Use a soft, dry cloth to wipe the surface of the amplifier board. Avoid using liquid cleaners or solvents, as they may damage the electronic components.
Prostředí: Ovládejte amplifier in a clean, dry environment. Avoid exposure to excessive dust, moisture, or extreme temperatures.
Větrání: Ensure the heat sink has adequate airflow to prevent overheating, especially during prolonged use at high volumes. Do not obstruct the heat sink.
Spojení: Pravidelně kontrolujte všechna kabelová spojení, abyste se ujistili, že jsou bezpečná a bez koroze.

10. Záruka a podpora

For warranty information and technical support, please refer to the documentation provided at the time of purchase or contact MakerHawk customer service directly. You can often find support resources and contact details on the official MakerHawk webwebu nebo prostřednictvím prodejce, u kterého byl produkt zakoupen.

For general inquiries or to explore other MakerHawk products, visit the official MakerHawk store: MakerHawk Store on Amazon.