1. Увод
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. Безбедносне информације
- Напајање: Use a DC9-24V/3A or above power supply. Do not connect to a 24V battery pack directly. Ensure the power supply voltagе је стабилно и унутар наведеног опсега.
- Компатибилност звучника: Connect speakers with an impedance of 4-8Ω and a power rating of 15-100W. Using incompatible speakers may damage the ampдаска за подизање.
- Механизми заштите: 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.
- Окружење: Управљајте amplifier in a dry, well-ventilated area. Avoid exposure to moisture, dust, or extreme temperatures.
- Руковање: Handle the board with care to avoid damaging electronic components. Avoid touching the circuit board while powered on.
3. Садржај пакета
Проверите да ли су све ставке наведене у наставку укључене у ваш пакет:
- ZK-502MT Bluetooth-Compatible Ampдаска за подизање
- Knobs (Volume, Treble, Bass)
- Mounting hardware (screws, standoffs)
- DC power adapter connector
- Мали одвијач
- Расхладни елемент
Image 3.1: ZK-502MT amplifier board, three control knobs, mounting hardware, DC power connector, screwdriver, and heat sink.
4. Производ је готовview
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.
Слика 4.1: Врх view of the ZK-502MT amplifier board showing the main components, input/output terminals, and control knob shafts.
Слика 4.2: Доња страна view of the ZK-502MT amplifier board, displaying the model number and circuit board traces.
5. Спецификације
| Параметар | Валуе |
|---|---|
| Модел производа | ZK-502MT |
| Блуетоотх верзија | 5.0 (unobstructed range up to 15 meters / 49 feet) |
| Однос сигнал/шум (СНР) | > 90дБ |
| Инпут Метход | AUX + Bluetooth-Compatible |
| Број канала | 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 В |
| 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 |
| Механизми заштите | Overheating, Overcurrent, Short Circuit, Voltagе Заштита |
| Димензије производа (Д*Ш*В) | 89mm * 60mm * 21mm (overall, including connectors/knobs) |
| Board Dimensions (L*W) | 74mm * 60mm (board only) |
| Тежина производа | Approximately 111g (including packaging) |
Image 5.1: ZK-502MT amplifier board with board dimensions of 74mm x 60mm indicated.
6. Упутства за подешавање
- Install Heat Sink: Attach the provided heat sink to the amplifier chip on the board. Ensure good contact for efficient heat dissipation.
- Повежите звучнике: 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.
- Повежите напајање: 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.
- Инсталирајте дугмад: Place the three control knobs onto their respective shafts (Volume, Treble, Bass).
- Укључено: Once all connections are secure, turn on the power supply. The amplifier board will power on.
7. Упутство за употребу
7.1. Блуетоотх веза
- Осигурајте 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. Повезивање AUX улаза
- Connect your audio source device to the AUX-IN port on the amplifier board using a 3.5mm audio cable.
- Тхе amplifier will automatically switch to AUX input when a cable is detected.
7.3. Adjusting Audio
- Контрола јачине звука: Rotate the Volume knob to adjust the overall output level.
- Контрола високих тонова: Rotate the Treble knob to increase or decrease high-frequency sounds.
- Контрола баса: Rotate the Bass knob to increase or decrease low-frequency sounds.
8. Одржавање
- Чишћење: За чишћење користите меку, суву крпу amplifier board. Do not use liquid cleaners or solvents.
- Складиштење: Када се не користи дуже време, чувајте ampЧувати на хладном и сувом месту, заштићено од директне сунчеве светлости и влаге.
- инспекција: Periodically check all connections for tightness and ensure no wires are frayed or damaged.
КСНУМКС. Решавање проблема
| Проблем | Могући узрок | Решење |
|---|---|---|
| Нема излаза звука |
|
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| Блуетоотх се не упарује |
|
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| Изобличен звук |
|
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| Ampпрегријавање подизача |
|
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10. Информације о гаранцији
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. Корисничка подршка
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.