1. Introducere
This manual provides detailed instructions for the installation, operation, maintenance, and troubleshooting of the EC Buying ZK-502MT 50W x 2 Bluetooth-Compatible Amplifier Board. Please read this manual thoroughly before using the product to ensure proper function and safety.
2. Informații de siguranță
- Alimentare electrică: Use a DC9-24V/3A or above power supply. Do not connect to a 24V battery pack directly. Ensure the power supply voltage is stable and within the specified range.
- Compatibilitate difuzoare: Connect speakers with an impedance of 4-8Ω and a power rating of 15-100W. Using incompatible speakers may damage the ampscândură mai vie.
- Mecanisme de protectie: The board includes built-in overheating, overcurrent, short circuit, and voltage protection. However, avoid operating the device under extreme conditions to prevent triggering these protections unnecessarily.
- Mediu: Operați amplifier in a dry, well-ventilated area. Avoid exposure to moisture, dust, or extreme temperatures.
- Manipulare: Handle the board with care to avoid damaging electronic components. Avoid touching the circuit board while powered on.
3. Conținutul pachetului
Verificați dacă toate articolele enumerate mai jos sunt incluse în pachetul dumneavoastră:
- ZK-502MT Bluetooth-Compatible Ampconsiliu mai viu
- Knobs (Volume, Treble, Bass)
- Elemente de montare (șuruburi, distanțiere)
- DC power adapter connector
- Surubelnita mica
- Radiator
Image 3.1: ZK-502MT amplifier board, three control knobs, mounting hardware, DC power connector, screwdriver, and heat sink.
4. Produs terminatview
The ZK-502MT is a compact 50W x 2 Bluetooth-Compatible audio amplifier module designed for home passive speakers. It features Bluetooth 5.0 connectivity and an AUX input, along with independent treble and bass controls for sound customization.
Imaginea 4.1: Sus view of the ZK-502MT amplifier board showing the main components, input/output terminals, and control knob shafts.
Imaginea 4.2: Partea de jos view of the ZK-502MT amplifier board, displaying the model number and circuit board traces.
5. Specificații
| Parametru | Valoare |
|---|---|
| Model de produs | ZK-502MT |
| Versiune Bluetooth | 5.0 (unobstructed range up to 15 meters / 49 feet) |
| Raport semnal/zgomot (SNR) | > 90 dB |
| Metoda de intrare | AUX + Bluetooth-Compatible |
| Numărul de canale | Left and right dual channels (Stereo) |
| Sursă de alimentare adaptivă | DC9~24V / 3A or above (cannot be connected to 24V battery pack) |
| Impedanță difuzoare compatibile | 4~8Ω |
| Alimentare difuzoare compatibile | 15 ~ 100 W |
| Output Power (at 8Ω) | 12V: 12W+12W, 15V: 18W+18W, 19V: 30W+30W, 24V: 40W+40W |
| Output Power (at 4Ω) | 12V: 20W+20W, 15V: 30W+30W, 19V: 40W+40W, 24V: 50W+50W |
| Mecanisme de protecție | Overheating, Overcurrent, Short Circuit, Voltage Protecție |
| Dimensiunile produsului (L*L*H) | 89mm * 60mm * 21mm (overall, including connectors/knobs) |
| Board Dimensions (L*W) | 74mm * 60mm (board only) |
| Greutatea produsului | Approximately 111g (including packaging) |
Image 5.1: ZK-502MT amplifier board with board dimensions of 74mm x 60mm indicated.
6. Instrucțiuni de configurare
- Instalați radiatorul: Attach the provided heat sink to the amplifier chip on the board. Ensure good contact for efficient heat dissipation.
- Conectați difuzoarele: Connect your passive speakers to the speaker output terminals (L+, L-, R+, R-) on the amplifier board. Ensure correct polarity. Use the small screwdriver for secure connections.
- Conectați sursa de alimentare: Connect a DC9-24V power supply (3A or higher) to the DC power input jack. If using the included DC power adapter connector, wire it to your power supply.
- Instalați butoanele: Place the three control knobs onto their respective shafts (Volume, Treble, Bass).
- Pornire: Once all connections are secure, turn on the power supply. The amplifier board will power on.
7. Instrucțiuni de utilizare
7.1. Conexiune Bluetooth
- Asigurați ampPlaca de alimentare este pornită.
- On your audio source device (e.g., smartphone, tablet), enable Bluetooth and search for available devices.
- Select "ZK-502MT" from the list of devices to pair. A confirmation sound may indicate successful pairing.
- Once paired, audio from your device will play through the connected speakers.
7.2. Conectarea intrării AUX
- Connect your audio source device to the AUX-IN port on the amplifier board using a 3.5mm audio cable.
- The amplifier will automatically switch to AUX input when a cable is detected.
7.3. Reglarea sunetului
- Controlul volumului: Rotate the Volume knob to adjust the overall output level.
- Control înalte: Rotate the Treble knob to increase or decrease high-frequency sounds.
- Controlul basului: Rotate the Bass knob to increase or decrease low-frequency sounds.
8. Întreținere
- curatenie: Utilizați o cârpă moale și uscată pentru a curăța ampNu utilizați agenți de curățare lichizi sau solvenți.
- Depozitare: Când nu este utilizat pentru perioade lungi de timp, depozitați amplifier in a cool, dry place away from direct sunlight and moisture.
- Inspecţie: Periodically check all connections for tightness and ensure no wires are frayed or damaged.
9. Depanare
| Problemă | Cauza posibila | Soluţie |
|---|---|---|
| Fără ieșire de sunet |
|
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| Bluetooth nu se asociază |
|
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| Sunet distorsionat |
|
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| Ampsupraîncălzire mai vie |
|
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10. Informații despre garanție
Warranty information for the EC Buying ZK-502MT amplifier board is not available in the provided product data. Please refer to your purchase documentation or contact the seller for details regarding warranty coverage.
11. Asistență pentru clienți
Customer support contact information for the EC Buying ZK-502MT amplifier board is not available in the provided product data. For assistance, please contact the retailer or seller from whom you purchased the product.