Introdução
The EC Buying ZK-502H is a high-fidelity 2.0 stereo digital power amplifier module designed to deliver clear and powerful audio. Featuring the TPA3116D2 chip, this amplifier board provides 50W+50W output and supports multiple audio input sources including Bluetooth 5.0, AUX, and USB. It is equipped with various protection mechanisms to ensure stable and secure performance.
Características do produto
- Áudio de alta fidelidade: Delivers 50W+50W output with the TPA3116D2 chip for crystal-clear stereo sound.
- Multiple Input Sources: Supports Bluetooth 5.0, AUX (3.5mm jack), USB flash drive, and computer USB sound card (plug and play).
- Conectividade Bluetooth 5.0: Offers seamless wireless connection with a range of over 15 meters in unobstructed environments.
- Proteção robusta: Inclui sobrevol.tage, subvoltage, overheating, DC detection, and short circuit protection for enhanced safety and durability.
- Wide Speaker Compatibility: Adaptable to 10-100W, 4-8Ω speakers.
- Fonte de alimentação flexível: Operates with a DC power supply ranging from 9V to 24V.
- Design compacto: Measures 60x60x29mm, making it suitable for various applications and portable setups.
Conteúdo da embalagem
Verifique se todos os componentes estão presentes no seu pacote:
- ZK-502H Amptábua mais viva
- Top and Bottom Acrylic Plates
- Botão de Volume
- Dissipador de calor
- Chave de fenda
- Mounting Hardware (screws, standoffs)
- Cabo adaptador de energia DC
Image: All components included with the ZK-502H amplifier board, laid out for assembly.
Instruções de configuração
1. Assembly (Optional, if not pre-assembled)
- Attach the heat sink to the main chip on the ampplaca mais viva.
- Proteja o amplifier board between the two acrylic plates using the provided standoffs and screws.
- Install the volume knob onto the potentiometer shaft.
2. Conexão de energia
- Garantir o amplifier is switched off and the volume knob is set to minimum.
- Connect a DC power supply (9-24V) to the DC IN port (labeled DC9-24V). Use the provided DC power adapter cable if necessary.
- Importante: Usando um volume mais altotage within the specified range (e.g., 24V) is recommended for achieving higher power output.
3. Conexão do alto-falante
- Connect your passive speakers to the speaker output terminals (labeled L+, L-, R+, R-).
- Ensure correct polarity: positive (+) to positive, negative (-) to negative for each channel.
- O amplifier supports speakers with an impedance of 4-8Ω and power rating of 10-100W.
4. Conexão de entrada de áudio
Escolha um dos seguintes métodos de entrada de áudio:
- Bluetooth: No physical connection needed. Proceed to Operating Instructions for pairing.
- AUXILIAR: Connect an audio source (e.g., smartphone, MP3 player) to the 3.5mm AUX IN jack using an audio cable.
- USB: Insert a USB flash drive into the USB IN port or connect the amplifier to a computer via USB for use as a sound card.
Imagem: Topo view of the ZK-502H amplifier board, highlighting the AUX IN, Bluetooth, USB IN, DC IN, and speaker output terminals.
Instruções de operação
1. Ligar/desligar
- Press the ON/OFF button to power on the amplifier. A blue indicator light will illuminate.
- Press the ON/OFF button again to power off the ampmais vivo.
2. Controle de volume
- Rotate the large silver knob clockwise to increase volume.
- Rotate the large silver knob counter-clockwise to decrease volume.
3. Seleção do modo de entrada
O amplifier automatically detects the input source. If multiple sources are connected, it will prioritize them or switch based on activity.
- Modo Bluetooth: Quando ligado, o amplifier will enter Bluetooth pairing mode. A voice prompt will confirm "Bluetooth Mode".
- Modo AUX: If an AUX cable is connected and playing audio, the amplifier will switch to AUX input.
- Modo USB: If a USB flash drive is inserted or connected to a computer, the amplifier will switch to USB input.
4. Emparelhamento Bluetooth
- Garantir o amplifier is powered on and in Bluetooth mode (indicated by a voice prompt).
- On your audio device (e.g., smartphone, tablet), enable Bluetooth and search for available devices.
- Select "ZK-502H" from the list of devices to pair.
- Once paired, a voice prompt will confirm the connection. You can now play audio from your device.
Especificações
| Modelo do produto | ZK-502H |
| Solução de Chip | TPA3116D2 (with AM interference suppression) |
| Entrada de áudio | Bluetooth 5.0, AUX (3.5mm), USB Flash Drive, Computer USB Sound Card |
| Fonte de energia | DC 9-24V |
| Potência de saída (máx.) | 50W + 50W (at 24V, 4Ω) |
| Impedância do alto-falante | 4-8Ω |
| Potência do alto-falante | 10-100W |
| Número de canais | 2.0 Stereo (Left and Right) |
| Versão Bluetooth | 5.0 |
| Alcance Bluetooth | >15 meters (unobstructed) |
| Mecanismos de proteção | Sobrevoltage, Undervoltage, Overheating, DC Detection, Short Circuit Protection |
| Dimensões do produto | 60 x 60 x 29 mm |
| Peso do produto | Approximately 104g (including packaging) |
Power Output Table:
| Vol da fonte de alimentaçãotage | 8Ω Speaker Output | 4Ω Speaker Output |
|---|---|---|
| 12V | 12W + 12W | 20W + 20W |
| 15V | 18W + 18W | 30W + 30W |
| 19V | 32W + 32W | 40W + 40W |
| 24V | 38W + 38W | 50W + 50W |
Manutenção
- Mantenha o amplifier board clean and free from dust. Use a soft, dry cloth for cleaning.
- Evite expor o dispositivo à umidade, temperaturas extremas ou luz solar direta.
- Ensure proper ventilation to prevent overheating, especially during prolonged use at high volumes.
- Não tente desmontar ou modificar o amplifier beyond the initial assembly steps, as this may void any potential warranty and could cause damage.
Solução de problemas
| Problema | Possível causa | Solução |
|---|---|---|
| Nenhuma saída de som. |
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| O dispositivo Bluetooth não pôde ser emparelhado. |
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| Som distorcido. |
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Garantia e Suporte
For product support, technical assistance, or warranty inquiries, please contact EC Buying customer service through the retailer where the product was purchased. Please retain your proof of purchase for any warranty claims.
Fabricante: EC Buying
Modelo: ZK-502H