1. Introduction
The 4K HD Portable Projector is a compact and versatile device designed for home entertainment, educational purposes, and outdoor movie nights. Featuring Android OS, high brightness, and advanced connectivity options, it delivers a superior viewing experience.
2. Specifications
| Feature | Description |
|---|---|
| Model Number | A3+AB |
| Projector Type | LCD |
| Brightness | 7500 Lumens / 450 ANSI |
| Physical Resolution | 720P (supports 1080P, 4K input) |
| Maximum Support Resolution | 1080P (4K supported) |
| Contrast Ratio | 10000:1 (Full On/Off) |
| Lamp Type | LED Lamp (50000 Hours Life) |
| Projection Distance | 20-300 inches |
| Operation System | Android 9 / WiFi |
| RAM | 2GB |
| Storage | 16GB |
| Connectivity | 2.4G / 5.0G Dual-band WIFI, Bluetooth 5.0 |
| Ports | 2x USB, HDMI, Earphone, DC |
| Portable | Yes (Weight 0.72kg) |
| OSD Languages | English, Spanish, German, Russian, Chinese (Total 23 Languages) |
| Certificates | CE, CCC, Rohs, PSE, FCC |
3. Setup Guide
3.1 Unpacking
Carefully remove all components from the packaging. Ensure all items listed in the product contents are present and undamaged.
3.2 Placement Options
The projector offers flexible placement for various viewing environments:
- Tabletop: Place the projector on a stable, flat surface.
- Tripod Mount: Attach the projector to a compatible tripod for adjustable height and angle.
- Ceiling Mount: Securely mount the projector to the ceiling for a permanent setup.
3.3 Power Connection
Connect the power adapter to the projector's DC input port and then plug it into a power outlet.
3.4 Initial Setup and Focus
Upon powering on, the projector will typically perform an auto-focus. You can further adjust the image:
- Auto Focus: The projector automatically adjusts for a clear image.
- Auto Keystone: Corrects image distortion automatically.
- 4-point Keystone: Manually adjust each corner of the projected image for precise alignment.
- Digital Zoom: Adjust the size of the projected image without moving the projector.
3.5 Connectivity
The projector offers various connection options:
- HDMI: Connect to laptops, gaming consoles (PS4, Xbox), DVD players, and TV boxes.
- USB: Connect USB drives for media playback or other USB devices.
- Bluetooth: Connect external Bluetooth speakers, soundbars, or headphones for enhanced audio.
- Wi-Fi: Connect to your home network for online streaming and screen mirroring. Supports 2.4G and 5.0G dual-band Wi-Fi.
- Earphone Jack: For wired audio output.
4. Operating Instructions
4.1 Power On/Off
Press the power button on the projector or remote control to turn the device on or off.
4.2 Navigating the Android OS
The projector runs on Android 9. Use the remote control to navigate through the interface, access apps, and adjust settings. Connect to Wi-Fi to access online content and app stores.
4.3 Screen Mirroring/Casting
The projector supports screen mirroring from various devices:
- Wireless Display: Connect your Apple, Android, or Windows devices wirelessly via the built-in Wi-Fi.
- Streaming Services: Stream content from popular services like Netflix, Amazon Prime, Hulu, YouTube, Spotify, Disney+, HBO Max, etc., by connecting a compatible TV Stick (not included) to the HDMI port.
4.4 Audio Output
The projector features a built-in Hi-Fi speaker. For an immersive audio experience, you can connect external sound equipment:
- Bluetooth: Pair with Bluetooth speakers, soundbars, or headphones. Note that Bluetooth is primarily for connecting external audio devices to transfer audio.
- Earphone Jack: Connect wired headphones or external speakers.
5. Maintenance
5.1 Cleaning
- Lens: Use a soft, lint-free cloth specifically designed for optical lenses to gently clean the projector lens. Avoid abrasive materials or harsh chemicals.
- Exterior: Wipe the projector's exterior with a soft, dry cloth. Do not use liquid cleaners directly on the device.
- Ventilation: Ensure the ventilation openings are clear of dust and obstructions to prevent overheating.
5.2 Lamp Life
The projector uses an LED lamp with an estimated life of 50,000 hours, providing long-lasting performance without frequent lamp replacement.
6. Troubleshooting
- No Power: Ensure the power adapter is securely connected to both the projector and a working power outlet.
- No Image: Check all video cable connections (HDMI, USB). Verify the correct input source is selected in the projector's menu.
- Blurry Image: Adjust the focus using the auto-focus feature or manual focus ring. Ensure the projection surface is flat and the projector is stable.
- Distorted Image: Use the keystone correction (auto or 4-point) to square the image.
- No Sound: Check the volume settings on the projector and any connected audio devices. Ensure external Bluetooth devices are properly paired.
- Remote Control Not Working: Check the batteries in the remote control. Ensure there are no obstructions between the remote and the projector's IR receiver.
7. User Tips
- For optimal viewing, use the projector in a dimly lit environment.
- Experiment with different projection distances to find the ideal screen size for your space. The projector supports 20-300 inch projection.
- Utilize the dual-band Wi-Fi (2.4G/5.0G) for faster and more stable streaming, especially for 4K content.
- To protect children's eyes, the projector incorporates 6 layers of high refractive glass lenses designed to reduce eye irritation and visual fatigue.
- Keep the projector's software updated to ensure the best performance and access to new features.
8. Warranty and Support
8.1 Warranty Period
This product comes with a 1-year quality guarantee from the date of purchase, covering manufacturing defects. This warranty does not cover human damage or damage due to force majeure factors. For better maintenance, ensure the projector is used under normal circumstances.
8.2 Technical Support
Beyond the guarantee period, technical support and maintenance services may still be available. For any questions or support needs, please refer to the seller's contact information provided at the time of purchase.