1. Introduzzjoni
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. Informazzjoni dwar is-Sigurtà
- Provvista tal-Enerġija: Use a DC9-24V/3A or above power supply. Do not connect to a 24V battery pack directly. Ensure the power supply voltage hija stabbli u fil-medda speċifikata.
- Kompatibbiltà tal-Ispeaker: Connect speakers with an impedance of 4-8Ω and a power rating of 15-100W. Using incompatible speakers may damage the ampbord aktar ħaj.
- Mekkaniżmi ta' Protezzjoni: 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.
- Ambjent: Opera l- amplifier in a dry, well-ventilated area. Avoid exposure to moisture, dust, or extreme temperatures.
- Immaniġġjar: Handle the board with care to avoid damaging electronic components. Avoid touching the circuit board while powered on.
3. Kontenut tal-Pakkett
Iċċekkja li l-oġġetti kollha elenkati hawn taħt huma inklużi fil-pakkett tiegħek:
- ZK-502MT Bluetooth-Compatible AmpBord aktar ħaj
- Knobs (Volume, Treble, Bass)
- Ħardwer tal-immuntar (viti, standoffs)
- DC power adapter connector
- Tornavit żgħir
- Sink tas-sħana
Image 3.1: ZK-502MT amplifier board, three control knobs, mounting hardware, DC power connector, screwdriver, and heat sink.
4. Prodott Aktarview
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.
Immaġni 4.1: Fuq view of the ZK-502MT amplifier board showing the main components, input/output terminals, and control knob shafts.
Immaġni 4.2: Il-qiegħ view of the ZK-502MT amplifier board, displaying the model number and circuit board traces.
5. Speċifikazzjonijiet
| Parametru | Valur |
|---|---|
| Mudell tal-Prodott | ZK-502MT |
| Verżjoni Bluetooth | 5.0 (unobstructed range up to 15 meters / 49 feet) |
| Proporzjon tas-sinjal għall-istorbju (SNR) | > 90dB |
| Metodu ta 'Input | AUX + Bluetooth-Compatible |
| Numru ta 'Kanali | 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 |
| Mekkaniżmi ta' Protezzjoni | Overheating, Overcurrent, Short Circuit, Voltage Protezzjoni |
| Dimensjonijiet tal-Prodott (L*W*H) | 89mm * 60mm * 21mm (overall, including connectors/knobs) |
| Board Dimensions (L*W) | 74mm * 60mm (board only) |
| Piż tal-Prodott | Approximately 111g (including packaging) |
Image 5.1: ZK-502MT amplifier board with board dimensions of 74mm x 60mm indicated.
6. Istruzzjonijiet ta' Setup
- Install Heat Sink: Attach the provided heat sink to the amplifier chip on the board. Ensure good contact for efficient heat dissipation.
- Qabbad l-Ispeakers: 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.
- Qabbad il-Provvista tal-Enerġija: 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.
- Installa l-Pumi: Place the three control knobs onto their respective shafts (Volume, Treble, Bass).
- Qawwa Mixgħul: Once all connections are secure, turn on the power supply. The amplifier board will power on.
7. Istruzzjonijiet Operattivi
7.1. Konnessjoni Bluetooth
- Tiżgura l- ampIl-bord tal-lifer huwa mixgħul.
- 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. Konnessjoni tad-Dħul AUX
- Connect your audio source device to the AUX-IN port on the amplifier board using a 3.5mm audio cable.
- Il- amplifier will automatically switch to AUX input when a cable is detected.
7.3. Aġġustament tal-Awdjo
- Kontroll tal-Volum: Rotate the Volume knob to adjust the overall output level.
- Kontroll tat-Triple: Rotate the Treble knob to increase or decrease high-frequency sounds.
- Kontroll tal-bass: Rotate the Bass knob to increase or decrease low-frequency sounds.
8. Manutenzjoni
- Tindif: Uża drapp ratba u niexfa biex tnaddaf il- amplifier board. Do not use liquid cleaners or solvents.
- Ħażna: Meta ma tkunx qed tużaha għal perjodi twal, aħżenha ampAħżen l-ilma f'post frisk u niexef 'il bogħod mix-xemx diretta u l-umdità.
- Spezzjoni: Periodically check all connections for tightness and ensure no wires are frayed or damaged.
9 Issolvi l-problemi
| Problema | Kawża Possibbli | Soluzzjoni |
|---|---|---|
| Ebda output tal-ħoss |
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| Bluetooth mhux pairing |
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| Ħoss distort |
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| Ampsħana żejda aktar ħajja |
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10. Informazzjoni dwar Garanzija
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. Appoġġ għall-Klijent
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.