1. Uvod
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. Sigurnosne informacije
- Napajanje: Use a DC9-24V/3A or above power supply. Do not connect to a 24V battery pack directly. Ensure the power supply voltage je stabilan i unutar specificiranog raspona.
- Kompatibilnost zvučnika: Connect speakers with an impedance of 4-8Ω and a power rating of 15-100W. Using incompatible speakers may damage the ampploča za podizanje.
- Mehanizmi zaštite: 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.
- Okruženje: Upravljajte amplifier in a dry, well-ventilated area. Avoid exposure to moisture, dust, or extreme temperatures.
- Rukovanje: Handle the board with care to avoid damaging electronic components. Avoid touching the circuit board while powered on.
3. Sadržaj paketa
Provjerite da li se u vašem paketu nalaze sve dolje navedene stavke:
- ZK-502MT Bluetooth-Compatible Ampdaska za dizanje
- Knobs (Volume, Treble, Bass)
- Pribor za montažu (vijci, odstojnici)
- DC power adapter connector
- Mali odvijač
- Rashladni element
Image 3.1: ZK-502MT amplifier board, three control knobs, mounting hardware, DC power connector, screwdriver, and heat sink.
4. Proizvod je gotovview
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.
Slika 4.1: Vrh view of the ZK-502MT amplifier board showing the main components, input/output terminals, and control knob shafts.
Slika 4.2: Donji dio view of the ZK-502MT amplifier board, displaying the model number and circuit board traces.
5. Specifikacije
| Parametar | Vrijednost |
|---|---|
| Model proizvoda | ZK-502MT |
| Bluetooth verzija | 5.0 (unobstructed range up to 15 meters / 49 feet) |
| Odnos signala i šuma (SNR) | > 90dB |
| Input Method | AUX + Bluetooth-Compatible |
| Broj kanala | 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 |
| Mehanizmi zaštite | Overheating, Overcurrent, Short Circuit, Voltage Zaštita |
| Dimenzije proizvoda (D*Š*V) | 89mm * 60mm * 21mm (overall, including connectors/knobs) |
| Board Dimensions (L*W) | 74mm * 60mm (board only) |
| Težina proizvoda | Approximately 111g (including packaging) |
Image 5.1: ZK-502MT amplifier board with board dimensions of 74mm x 60mm indicated.
6. Upute za postavljanje
- Install Heat Sink: Attach the provided heat sink to the amplifier chip on the board. Ensure good contact for efficient heat dissipation.
- Povežite zvučnike: 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.
- Povežite napajanje: 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.
- Ugradnja dugmadi: Place the three control knobs onto their respective shafts (Volume, Treble, Bass).
- Uključeno: Once all connections are secure, turn on the power supply. The amplifier board will power on.
7. Uputstvo za upotrebu
7.1. Bluetooth veza
- Osigurajte 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. Priključak AUX ulaza
- Connect your audio source device to the AUX-IN port on the amplifier board using a 3.5mm audio cable.
- The ampUređaj će se automatski prebaciti na AUX ulaz kada detektuje kabl.
7.3. Adjusting Audio
- Kontrola jačine zvuka: Rotate the Volume knob to adjust the overall output level.
- Kontrola visokih tonova: Rotate the Treble knob to increase or decrease high-frequency sounds.
- Kontrola basa: Rotate the Bass knob to increase or decrease low-frequency sounds.
8. Održavanje
- čišćenje: Za čišćenje koristite meku, suhu krpu ampploča za spašavanje. Ne koristite tekuća sredstva za čišćenje ili rastvarače.
- Skladištenje: Kada se ne koristi duži period, uskladištite amplifier in a cool, dry place away from direct sunlight and moisture.
- inspekcija: Periodically check all connections for tightness and ensure no wires are frayed or damaged.
9. Otkrivanje problema
| Problem | Mogući uzrok | Rješenje |
|---|---|---|
| Nema izlaza zvuka |
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| Bluetooth se ne uparuje |
|
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| Izobličen zvuk |
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| Amppregrijavanje podizača |
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10. Informacije o garanciji
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. Korisnička podrška
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.