1. 서론
The Daakro ZK-502L is a high-fidelity 2.0 channel Bluetooth amplifier board designed for DIY audio projects. It delivers 50W + 50W output power, features dual audio input modes (Bluetooth 5.0 and AUX), and operates within a wide DC 9-24V voltage range. This manual provides detailed instructions for the proper setup, operation, and maintenance of your amp리퍼 보드.
2. 제품 특징
- Dual HiFi Chip: Utilizes two HiFi amplifier chips with PurePath technology for ultra-high resolution, low distortion, and high-fidelity sound.
- 2.0 채널 출력: Supports left and right channel configuration, providing 50W output power per channel for an immersive sound experience.
- Dual Audio Input Modes: Seamlessly switch between Bluetooth 5.0 for wireless connectivity and traditional AUX input for wired audio sources.
- 와이드볼tag전자 범위: Compatible with DC 9-24V power supplies, allowing flexibility with 9V, 12V, 19V, or 24V sources.
- 스피커 호환성: Suitable for 20-200W, 4-8Ω speakers, ensuring broad compatibility with various speaker sizes.
- 종합 보호: Built-in mechanisms include over-voltage, 언더볼륨tage, over-temperature, short-circuit, and reverse connection protection for device safety.
- 볼륨 조절: Integrated volume knob for easy adjustment of audio output.
3. 패키지 내용
아래 나열된 모든 품목이 패키지에 들어 있는지 확인하세요.
- ZK-502L Amp리퍼 보드
- Top and Bottom Acrylic Plates
- Mounting Hardware (Screws, Spacers, Nuts)
- Volume Knob Cap
- DC 전원 케이블
- 작은 드라이버
4. 구성 요소 식별
Familiarize yourself with the various components and connection points on the amp증폭기 보드:
- 전원 입력(DC 9-24V): Connect your DC power supply here.
- Left Channel Output (-L +): Connect the left speaker here.
- Right Channel Output (-R +): Connect the right speaker here.
- 볼륨 조절: Rotary knob to adjust the audio output level.
- 블루투스 표시기: 블루투스 상태를 나타내는 LED 표시등.
- 보조 입력: 유선 오디오 연결용 3.5mm 잭.
5. 기술 사양
| 사양 | 값 |
|---|---|
| 모델 번호 | ZK-502L |
| 채널 | 2.0(스테레오) |
| 출력 전력 | 50W + 50W |
| 입력 Voltage | DC 9-24V |
| 오디오 입력 | 블루투스 5.0, AUX (3.5mm) |
| 스피커 임피던스 | 4-8Ω |
| 치수(길이 x 너비 x 높이) | 4.33 x 2.76 x 1.97인치(대략) |
| 무게 | 2.39 온스(대략) |
6. Power Output Guidelines
The actual output power varies depending on the input voltage and speaker impedance. Refer to the table below for typical power output values:
| 입력 Voltage | 스피커 임피던스 | Output Power (@1KHz) |
|---|---|---|
| 12V | 4Ω | 20W+20W |
| 12V | 8Ω | 12W+12W |
| 15V | 4Ω | 30W+30W |
| 15V | 8Ω | 18W+18W |
| 19V | 4Ω | 40W+40W |
| 19V | 8Ω | 30W+30W |
| 24V | 4Ω | 50W+50W |
| 24V | 8Ω | 40W+40W |
참고사항: Optimal audio output requires sufficient audio input combined with appropriate power supply voltage and current. A higher voltage and current generally result in higher power output. For the same conditions, a smaller speaker impedance will yield greater power.
7. 설정 지침
Follow these steps to set up your Daakro ZK-502L amp증폭기 보드:
- C를 조립하세요asing (Optional): If your board came with acrylic plates, use the provided screws and spacers to assemble the protective casing around the amp리퍼 보드.
- 스피커 연결: Connect your passive speakers to the Left Channel Output (-L +) and Right Channel Output (-R +) terminals. Ensure correct polarity (+ to + and - to -).
- 전원 공급 장치 연결: Connect a DC 9-24V power adapter (not included) to the Power Input jack. Ensure the power supply meets the voltage and current requirements for your desired output.
- 초기 볼륨 설정: Turn the volume control knob counter-clockwise to its minimum position before powering on.
8. 사용 설명서
The ZK-502L amplifier board supports two audio input modes:
8.1. 블루투스 모드
- 전원 켜기: 확인하십시오 amplifier board is powered on. The Bluetooth indicator LED will blink, indicating it is in pairing mode.
- 편성: On your audio source device (e.g., smartphone, tablet, PC), enable Bluetooth and search for available devices. Select "ZK-502L" from the list.
- 연결 확인: Once successfully paired, the Bluetooth indicator LED will stop blinking and remain solid.
- 오디오 재생: Start playing audio on your connected device. Adjust the volume using the amplifier board's volume knob and your source device's volume controls.
8.2. AUX 입력 모드
- AUX 케이블 연결: Insert a 3.5mm audio cable (not included) into the AUX Input jack on the amplifier board. Connect the other end to your audio source device's headphone or audio output jack.
- 자동 스위칭: 그만큼 amplifier board will automatically switch to AUX input mode when a cable is detected.
- 오디오 재생: Start playing audio on your connected device. Adjust the volume using the amplifier board's volume knob and your source device's volume controls.
9. 안전수칙
- 전원 공급 장치 볼륨을 확인하십시오.tage is within the DC 9-24V range. Using an incorrect voltag전자는 장치를 손상시킬 수 있습니다.
- Do not short-circuit the speaker outputs or power input.
- Avoid exposing the board to moisture, extreme temperatures, or direct sunlight.
- Handle the board with care to prevent damage to components.
- 연결 또는 분리 작업을 하기 전에 전원을 차단하십시오.
- Do not attempt to modify the circuit board, as this will void the warranty and may cause damage.
10. 문제 해결
- 소리 없음:
- Check if the power supply is connected correctly and providing the correct voltage.
- Verify speaker connections for correct polarity and secure contact.
- Ensure the volume knob is turned up on both the amplifier board and the audio source device.
- If using Bluetooth, ensure the device is paired and connected. If using AUX, ensure the cable is fully inserted.
- 왜곡된 소리:
- 양쪽 모두 볼륨을 줄이세요 amp증폭기와 소스 장치.
- Ensure the power supply can provide sufficient current for the desired output power.
- 스피커 임피던스 호환성(4-8Ω)을 확인하십시오.
- 블루투스 연결 끊김:
- Ensure the audio source device is within the 16.4 feet (5 meters) Bluetooth range.
- 블루투스 신호를 방해할 수 있는 장애물을 피하십시오.
- 기기의 페어링을 해제한 후 다시 페어링해 보세요.
- 전원 표시등이 켜지지 않음:
- Check the power supply connection and ensure it is functioning.
- Verify that the power input terminals are correctly wired.
11. 보증 및 지원
Daakro provides the following support for your ZK-502L amp증폭기 보드:
- 30일 보증: Your product is covered by a 30-day warranty from the date of purchase.
- 24 Hours Online Customer Service: For any inquiries or technical assistance, please contact Daakro customer support.
- 100% Customer Satisfaction: Daakro is committed to ensuring your satisfaction with their products.
For further assistance, please visit the official Daakro store or contact their customer service team.
