1. 서론
The WONDOM KAB9 is an advanced 8 x 50W audio amplifier board designed for versatile audio system applications, including game machines and kiosks. It offers high reliability and performance, building upon Sure Electronics' established product platform. The KAB9 features four amplifier chips, each configurable into PBTL mode for 1 x 100W output, allowing for flexible system configurations.
This manual provides detailed instructions for the setup, operation, and maintenance of your KAB9 amplifier board, ensuring optimal performance and longevity.
Figure 1: WONDOM KAB9 8 x 50W Audio Amplifier Board with included accessories.
2. 제품 특징
- 8 x 50W 오디오 Amp정수기: Provides robust audio output for various applications.
- Higher Output Power with Fan Installed: Capable of 8 x 100W peak output when equipped with a cooling fan.
- Independent PBTL/BTL Configuration: Four stereo amplifier chips can be independently configured for PBTL mode (1 x 100W).
- 다중 출력 모드: Supports configurations such as 8.0, 7.1, 6.1, 5.1, 4.2, and 4.0 audio systems.
- External Plug-and-Play Modules: Designed to support daughter boards, including a 7.1 USB codec module for digital audio input.
- 7.1 USB Codec as Audio Input: Enables high-quality digital audio input, minimizing ground noise.
- Five Level Gain Adjustment: Gain can be adjusted via an on-board switch.
- 제어 기능: Includes Shutdown, Mute, and Synchronize control options.
- 보호: Equipped with overcurrent protection.
- 컴팩트한 사이즈: Dimensions of 6.0 x 4.5 x 1.8 inches.
Figure 2: KAB9 output channel configurations for various audio systems.
Figure 3: KAB9 supports 7.1 USB Codec Digital Input, compatible with Windows and Linux systems, reducing ground noise.
3. 설정 및 설치
3.1 패키지 내용
Please verify that all components are present in your package. Refer to the packing list provided with your purchase. Typically, the package includes the KAB9 amplifier board and necessary connection cables.
3.2 전원 공급 장치 연결
Connect a suitable DC power supply to the designated power input terminals on the KAB9 board. Ensure the voltage and current ratings of your power supply meet the requirements specified in the 'Specifications' section to prevent damage.
3.3 스피커 연결
Connect your speakers to the output terminals. The KAB9 supports various configurations (8.0, 7.1, 6.1, 5.1, 4.2, 4.0). Ensure correct polarity for each speaker connection. Refer to the board's silk screen for channel assignments.
3.4 오디오 입력 연결
The KAB9 supports differential input. For digital audio, connect the 7.1 USB codec module (if purchased separately) to the dedicated daughter board interface. This module provides a high-quality digital input, effectively avoiding ground noise.
그림 4: 각도 view of the KAB9 board, highlighting power and speaker output connectors.
Figure 5: KAB9 amplifier board with the 7.1 USB Codec Input Module connected.
3.5 Configuration Switches
The KAB9 features on-board switches for configuring the output modes and gain levels. These switches allow you to select between various channel configurations (e.g., 8.0, 7.1, 6.1, 5.1, 4.2, 4.0) and to set individual amplifier chips into PBTL (Parallel Bridge-Tied Load) mode for higher power output (1 x 100W). Consult the detailed diagram in the product documentation for specific switch settings for each configuration.
4. 사용 설명서
4.1 전원 켜기/끄기
Once all connections are secure, apply power to the board. The power indicator LED will illuminate. To power off, disconnect the power supply.
4.2 오디오 입력 선택
If using the 7.1 USB codec module, connect it to your host device (e.g., PC, kiosk system). The system should automatically detect the audio device. Select the KAB9 as your audio output device in your operating system's sound settings.
4.3 게인 조정
The KAB9 offers five levels of gain adjustment via an on-board switch. Adjust the gain to match your audio source and speaker sensitivity for optimal sound quality and to prevent distortion.
4.4 출력 모드 선택
The desired output configuration (e.g., 8.0, 7.1, 6.1, 5.1, 4.2, 4.0) is set using the physical switches on the board during setup. Ensure these are correctly set before applying power and playing audio.
4.5 제어 기능
The board includes pins for Shutdown, Mute, and Synchronize control. Refer to the KAB9 datasheet for detailed pinout and control signal specifications for integration into custom systems.
5. 유지관리
To ensure the longevity and reliable operation of your KAB9 amp증폭기 보드의 경우 다음 유지 관리 지침을 따르십시오.
- 청소: 기판에 먼지와 이물질이 묻지 않도록 하십시오. 청소할 때는 부드럽고 마른 브러시나 압축 공기를 사용하십시오. 액체나 용제는 사용하지 마십시오.
- 환경: Operate the board in a dry, well-ventilated environment. Avoid exposure to extreme temperatures, humidity, or direct sunlight.
- 냉각: For applications requiring 8 x 100W peak output, a cooling fan is recommended. Ensure the fan is properly installed and functioning to prevent overheating.
- 손질: Handle the board by its edges to avoid touching components, especially when powered.
6. 문제 해결
If you encounter issues with your KAB9 amplifier board, refer to the following troubleshooting steps:
- 오디오 출력 없음:
- 전원 공급 장치가 올바르게 연결되어 있고 정확한 전압을 공급하는지 확인하십시오.tage.
- Check all speaker and audio input connections for proper seating and polarity.
- Ensure the correct audio input source is selected on your host device.
- Confirm that the gain switch is set appropriately.
- 왜곡된 오디오:
- Reduce the input audio level from your source device.
- Adjust the gain switch on the KAB9 board to a lower setting.
- 스피커 임피던스가 일치하는지 확인하십시오. ampLifier의 사양입니다.
- Ground Noise/Hum:
- If using analog input, try isolating the power supply or using a ground loop isolator.
- The 7.1 USB codec module is designed to avoid ground noise; ensure it is properly connected and functioning if you are using digital input.
- 과전류 보호가 작동됨:
- This feature protects the amplifier from excessive current draw. Disconnect power, check speaker connections for shorts, and ensure speaker impedance is within the specified range. Reapply power after resolving the issue.
7. 사양
| 특징 | 사양 |
|---|---|
| 모델 번호 | 케이비에이비9 |
| 상표 | 원돔 |
| 출력 전력 | 8 x 50W (Standard), 8 x 100W Peak (with fan) |
| 채널 수 | 8 |
| 구성 가능한 모드 | 8.0, 7.1, 6.1, 5.1, 4.2, 4.0 |
| 입력 유형 | Differential Input, 7.1 USB Codec (via external module) |
| 이득 조정 | Five levels via switch |
| 보호 | 과전류 보호 |
| 치수(길이 x 너비 x 높이) | 6.0 x 4.5 x 1.8인치(15.24 x 11.43 x 4.57cm) |
| 무게 | 168g / 0.37lbs (±10%) |
| 장착 유형 | 표면 실장 |
8. 보증 및 지원
WONDOM products are manufactured by Sure Electronics Co., Ltd. For warranty information, please refer to the terms and conditions provided at the time of purchase or contact your vendor directly. For technical support, product inquiries, or assistance with troubleshooting beyond the scope of this manual, please visit the official WONDOM website or contact Sure Electronics customer service.
자세한 정보와 지원 리소스는 다음 사이트를 방문하여 확인할 수 있습니다. WONDOM Store on Amazon.
