1. Einleitung
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. Sicherheitshinweise
- Stromversorgung: Use a DC9-24V/3A or above power supply. Do not connect to a 24V battery pack directly. Ensure the power supply voltage ist stabil und liegt innerhalb des vorgegebenen Bereichs.
- Lautsprecherkompatibilität: Connect speakers with an impedance of 4-8Ω and a power rating of 15-100W. Using incompatible speakers may damage the amplifier-Board.
- Schutzmechanismen: 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.
- Umfeld: Bedienen Sie den amplifier in a dry, well-ventilated area. Avoid exposure to moisture, dust, or extreme temperatures.
- Handhabung: Handle the board with care to avoid damaging electronic components. Avoid touching the circuit board while powered on.
3. Packungsinhalt
Bitte überprüfen Sie, ob alle unten aufgeführten Artikel in Ihrem Paket enthalten sind:
- ZK-502MT Bluetooth-Compatible Amplifier-Board
- Regler (Lautstärke, Höhen, Bässe)
- Montagezubehör (Schrauben, Abstandshalter)
- DC power adapter connector
- Kleiner Schraubendreher
- Kühlkörper
Image 3.1: ZK-502MT amplifier board, three control knobs, mounting hardware, DC power connector, screwdriver, and heat sink.
4. Produktüberschreitungview
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.
Abbildung 4.1: Oben view of the ZK-502MT amplifier board showing the main components, input/output terminals, and control knob shafts.
Abbildung 4.2: Unterseite view of the ZK-502MT amplifier board, displaying the model number and circuit board traces.
5. Spezifikationen
| Parameter | Wert |
|---|---|
| Produktmodell | ZK-502MT |
| Bluetooth-Version | 5.0 (unobstructed range up to 15 meters / 49 feet) |
| Signal-Rausch-Verhältnis (SNR) | > 90 dB |
| Eingabemethode | AUX + Bluetooth-Compatible |
| Anzahl der Kanäle | Linker und rechter Dualkanal (Stereo) |
| Adaptives Netzteil | DC9~24V / 3A or above (cannot be connected to 24V battery pack) |
| Compatible Speaker Impedance | 4 bis 8 Ω |
| 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 |
| Schutzmechanismen | Overheating, Overcurrent, Short Circuit, Voltage-Schutz |
| Produktabmessungen (L*B*H) | 89mm * 60mm * 21mm (overall, including connectors/knobs) |
| Board Dimensions (L*W) | 74mm * 60mm (board only) |
| Produktgewicht | Approximately 111g (including packaging) |
Image 5.1: ZK-502MT amplifier board with board dimensions of 74mm x 60mm indicated.
6. Einrichtungsanweisungen
- Install Heat Sink: Attach the provided heat sink to the amplifier chip on the board. Ensure good contact for efficient heat dissipation.
- Lautsprecher anschließen: 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.
- Stromversorgung anschließen: 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.
- Knöpfe montieren: Place the three control knobs onto their respective shafts (Volume, Treble, Bass).
- Einschalten: Once all connections are secure, turn on the power supply. The amplifier board will power on.
7. Bedienungsanleitung
7.1. Bluetooth-Verbindung
- Stellen Sie sicher, dass amplifier board is powered on.
- Aktivieren Sie auf Ihrem Audio-Quellgerät (z. B. Smartphone, Tablet) Bluetooth und suchen Sie nach verfügbaren Geräten.
- 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-Eingangsanschluss
- Connect your audio source device to the AUX-IN port on the amplifier board using a 3.5mm audio cable.
- Der ampDer Verstärker schaltet automatisch auf den AUX-Eingang um, sobald ein Kabel erkannt wird.
7.3. Audioeinstellungen
- Lautstärkeregelung: Rotate the Volume knob to adjust the overall output level.
- Höhenregelung: Rotate the Treble knob to increase or decrease high-frequency sounds.
- Bassregelung: Rotate the Bass knob to increase or decrease low-frequency sounds.
8. Wartung
- Reinigung: Reinigen Sie die ampVerstärkerplatine. Keine flüssigen Reiniger oder Lösungsmittel verwenden.
- Lagerung: Bei längerer Nichtbenutzung lagern Sie die ampVerstärker an einem kühlen, trockenen Ort ohne direkte Sonneneinstrahlung und Feuchtigkeit aufstellen.
- Inspektion: Überprüfen Sie regelmäßig alle Verbindungen auf festen Sitz und stellen Sie sicher, dass keine Drähte ausgefranst oder beschädigt sind.
9. Fehlerbehebung
| Problem | Mögliche Ursache | Lösung |
|---|---|---|
| Keine Tonausgabe |
|
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| Bluetooth nicht gekoppelt |
|
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| Verzerrter Ton |
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| AmpÜberhitzung des lifiers |
|
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10. Garantieinformationen
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. Kundendienst
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.
