1. Sarrera
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. Segurtasun informazioa
- Elikatze-iturria: Use a DC9-24V/3A or above power supply. Do not connect to a 24V battery pack directly. Ensure the power supply voltage egonkorra da eta zehaztutako tartearen barruan dago.
- Hizlarien bateragarritasuna: Connect speakers with an impedance of 4-8Ω and a power rating of 15-100W. Using incompatible speakers may damage the ampargitzaile taula.
- Babes-mekanismoak: 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.
- Ingurumena: Funtzionatu amplifier in a dry, well-ventilated area. Avoid exposure to moisture, dust, or extreme temperatures.
- Manipulazioa: Handle the board with care to avoid damaging electronic components. Avoid touching the circuit board while powered on.
3. Paketearen edukia
Egiaztatu behean zerrendatutako elementu guztiak zure paketean sartuta daudela:
- ZK-502MT Bluetooth-Compatible Amptaula biziagoa
- Knobs (Volume, Treble, Bass)
- Mounting hardware (screws, standoffs)
- DC power adapter connector
- Bihurkin txikia
- Bero-husketagailua
Image 3.1: ZK-502MT amplifier board, three control knobs, mounting hardware, DC power connector, screwdriver, and heat sink.
4. Produktua amaitu daview
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.
4.1. irudia: Goian view of the ZK-502MT amplifier board showing the main components, input/output terminals, and control knob shafts.
4.2 irudia: Behealdea view of the ZK-502MT amplifier board, displaying the model number and circuit board traces.
5. Zehaztapenak
| Parametroa | Balioa |
|---|---|
| Produktu Eredua | ZK-502MT |
| Bluetooth bertsioa | 5.0 (unobstructed range up to 15 meters / 49 feet) |
| Seinale eta zarata erlazioa (SNR) | > 90 dB |
| Sarrera-metodoa | AUX + Bluetooth-Compatible |
| Kanal kopurua | Left and right dual channels (Stereo) |
| Adaptive Power Supply | DC9~24V / 3A or above (cannot be connected to 24V battery pack) |
| Compatible Speaker Impedance | 4~8Ω |
| Compatible Speaker Power | 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 |
| Babes-mekanismoak | Overheating, Overcurrent, Short Circuit, Voltage Babesa |
| Produktuaren neurriak (L*W*H) | 89mm * 60mm * 21mm (overall, including connectors/knobs) |
| Board Dimensions (L*W) | 74mm * 60mm (board only) |
| Produktuaren pisua | Approximately 111g (including packaging) |
Image 5.1: ZK-502MT amplifier board with board dimensions of 74mm x 60mm indicated.
6. Konfiguratzeko argibideak
- Install Heat Sink: Attach the provided heat sink to the amplifier chip on the board. Ensure good contact for efficient heat dissipation.
- Konektatu bozgorailuak: 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.
- Konektatu elikadura iturria: 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.
- Instalatu botoiak: Place the three control knobs onto their respective shafts (Volume, Treble, Bass).
- Piztu: Once all connections are secure, turn on the power supply. The amplifier board will power on.
7. Funtzionamendu-argibideak
7.1. Bluetooth konexioa
- Ziurtatu amplifier board is powered on.
- 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. AUX Input Connection
- 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. Adjusting Audio
- Bolumen kontrola: Rotate the Volume knob to adjust the overall output level.
- Treble Kontrola: Rotate the Treble knob to increase or decrease high-frequency sounds.
- Baxuen kontrola: Rotate the Bass knob to increase or decrease low-frequency sounds.
8. Mantentzea
- Garbiketa: Erabili zapi leun eta lehor bat garbitzeko ampLikido-taula. Ez erabili garbitzaile likidorik edo disolbatzailerik.
- Biltegiratzea: Denbora luzez erabiltzen ez denean, gorde amplifier in a cool, dry place away from direct sunlight and moisture.
- Ikuskapena: Periodically check all connections for tightness and ensure no wires are frayed or damaged.
9. Arazoak
| Arazoa | Kausa posiblea | Irtenbidea |
|---|---|---|
| Ez dago soinu irteerarik |
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| Bluetootha ez da parekatzen |
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| Soinu distortsionatua |
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| Ampberotze biziagoa |
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10. Bermearen informazioa
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. Bezeroarentzako arreta
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.