Caiwei A9K Projector User Manual

1. Introduction

Thank you for purchasing the Caiwei A9K 3D 4K Mini LED Projector. This device is designed to provide a versatile and high-quality projection experience for home theater, business, education, and outdoor entertainment. Featuring Android 9, dual-band WiFi, Bluetooth 5.0, and advanced auto-calibration technologies, the A9K delivers stunning visuals and immersive audio. This manual will guide you through the setup, operation, and maintenance of your new projector.

2. Important Safety Instructions

• Power Source: Use only the power adapter supplied with the projector. Ensure the voltage matches the requirements specified on the device.
• Ventilation: Do not block the ventilation openings. Ensure adequate space around the projector for proper airflow to prevent overheating.
• Eye Protection: Do not look directly into the projector lens when the lamp is on. The bright light can cause eye damage.
• Placement: Place the projector on a stable, level surface. Avoid placing it in direct sunlight, near heat sources, or in environments with high humidity or dust.
• Cleaning: Unplug the projector before cleaning. Use a soft, dry cloth for cleaning. Do not use liquid or aerosol cleaners.
• Servicing: Do not attempt to service this product yourself. Refer all servicing to qualified service personnel.

3. Package Contents

Please check the package for the following items:

• Caiwei A9K Projector
• Remote Control
• Power Cable
• HDMI Cable
• User Manual (this document)

4. Product Overview

Familiarize yourself with the projector's components and interfaces.

4.1 Projector Features and Design

4.2 Interfaces and Ports

4.3 Dimensions

5. Specifications

6. Setup Guide

6.1 Placement

Choose a suitable location for your projector. The projection distance can range from 1.3 to 7.5 meters, allowing for screen sizes between 32 and 300 inches. Ensure the projector is placed on a stable, level surface or mounted securely.

6.2 Power Connection

1. Connect the power cable to the projector's power input port.
2. Plug the other end of the power cable into a suitable electrical outlet.

6.3 Connecting Devices

Use the appropriate cables to connect your external devices to the projector:

• HDMI: For high-definition video and audio from Blu-ray players, gaming consoles, laptops, etc.
• USB: For connecting USB drives to play media files or external peripherals.
• AV: For standard definition video and audio from older devices.
• RJ45 (LAN): For wired network connection.
• Earphone: For connecting external headphones or speakers.

6.4 Initial Power On

Press the power button on the projector or the remote control to turn on the device. The projector will boot up and display the Android home screen.

7. Operating Instructions

7.1 Navigation and Control

You can navigate the projector's interface using the touch panel on the top of the device or the included remote control. The Android 9 operating system provides a user-friendly experience for accessing apps and settings.

7.2 Intelligent Calibration Features

The A9K projector is equipped with advanced calibration technologies for a hassle-free setup.

• Autofocus: The projector automatically adjusts the focus for a clear image.
• Automatic Calibration: The system performs automatic image adjustments.
• Auto-Obstacle Avoidance: The projector intelligently detects and avoids obstacles in the projection path, such as plants or furniture, by adjusting the image.



• Auto Screen Fit: The projector intelligently detects the screen or wall edges and automatically aligns the image for a perfect fit.



• Trapezoidal Correction: The projector can automatically correct trapezoidal distortion, ensuring a square image even when placed at an angle.

7.3 Wireless Connectivity

• WiFi: Connect to your home or office network using the built-in 2.4G/5G dual-band WiFi for seamless streaming and online content access.



• Bluetooth 5.0: Connect external Bluetooth speakers or headphones for enhanced audio experience.



• Screen Mirroring: Wirelessly mirror content from your smartphone or tablet to the projector.

7.4 Audio

The projector features a built-in high-fidelity HiFi sound system for an immersive 360° omnidirectional sound effect.

7.5 Product Demonstration Video

8. Maintenance

The Caiwei A9K projector features a DMS (Dustproof Light Machine) sealed design, which significantly reduces dust accumulation and extends the lifespan of the optical components.

• Lens Cleaning: Gently wipe the projector lens with a soft, lint-free cloth specifically designed for optical surfaces. Do not use abrasive materials or harsh chemicals.
• Exterior Cleaning: Use a soft, dry cloth to clean the exterior of the projector. For stubborn marks, slightly dampen the cloth with water and then wipe dry.
• Ventilation Ports: Periodically check the ventilation ports for any dust buildup. Use a soft brush or compressed air to clear them, ensuring proper heat dissipation.

9. Troubleshooting

If you encounter issues with your projector, please refer to the following common problems and solutions:

• No Image Displayed:
  • Ensure the power cable is securely connected and the projector is turned on.
  • Check the input source selection. Make sure the correct HDMI, USB, or other input is selected.
  • Verify that the connected device (laptop, media player) is powered on and outputting a signal.
• Image is Blurry:
  • Allow the projector to perform autofocus. If needed, manually adjust the focus using the remote or on-screen menu.
  • Ensure the projection surface is flat and the projector is within the recommended projection distance.
• Image is Distorted (Trapezoid Shape):
  • The projector features automatic trapezoidal correction. If distortion persists, check the projector's placement relative to the screen.
• No Sound:
  • Check the volume settings on both the projector and the connected source device.
  • If using external speakers, ensure they are properly connected and powered on.
  • Verify Bluetooth audio connection if using wireless speakers.
• Remote Control Not Working:
  • Ensure the batteries are correctly inserted and not depleted.
  • Point the remote directly at the projector's IR receiver.

10. User Tips

• Daylight Viewing: With 14300 light source lumens (1500 ANSI lumens), the A9K is designed for clear projection even in daytime environments. Adjust ambient light for optimal clarity.



• Eye Comfort: The projector utilizes EyrCare2.0 Eye Protection Technology with diffuse reflection imaging, which is softer and more natural than direct light, making it more comfortable for your eyes during extended viewing.



• Versatile Applications: The A9K is suitable for various scenarios including home theater, outdoor camping, office meetings, gaming, and social gatherings.



• Smooth Performance: Equipped with quantum chips and 2GB RAM + 16GB EMMC, the projector ensures smooth operation and prevents lag, even with demanding applications.

11. Warranty and Support

The Caiwei A9K projector comes with a 1-year warranty from the date of purchase, covering manufacturing defects. For technical support, troubleshooting assistance, or warranty claims, please contact our customer service team. Please have your product model and purchase details ready when contacting support.

For further assistance, you may contact our support team via email or phone. Refer to your purchase documentation for specific contact information.