YABER K7 5G WiFi Bluetooth Projector User Manual

1. Introduction

The YABER K7 projector is a versatile home and outdoor video projector designed to deliver a high-quality viewing experience. Featuring native 1080P resolution with 4K support, 500 ANSI lumens brightness, and advanced connectivity options like 5G WiFi and Bluetooth 5.1, it offers clear images and immersive sound. Its unique 6D auto keystone correction simplifies setup, making it ideal for various environments.

Figure 1: YABER K7 Projector with key features and included carrying bag.

2. Package Contents

Please check the package carefully to ensure all items are present:

• K7 Projector (x1)
• Power Adapter (x1)
• Remote Control (x1)
• User Manual (x1)
• Power Cord (x1)
• AV Cable (x1)
• HDMI Cable (x1)
• Warranty Card (x1)
• Carrying Bag (x1)

3. Specifications

4. Setup

4.1 Physical Placement

Place the projector on a stable, flat surface. For optimal image clarity, position the projector approximately 2.5 to 3 meters (8.2 to 9.8 feet) directly in front of the projection screen or wall. The projector can project an image size from 50 to 500 inches, with the optimal range being 50 to 300 inches for best quality.

Figure 2: Recommended projection distances for various screen sizes.

4.2 Power Connection

Connect the provided power cord to the projector's power input port and then plug it into a suitable electrical outlet. Ensure the power adapter is securely connected.

Figure 3: Rear panel of the K7 Projector with power and input ports.

4.3 Input Connections

The K7 projector supports various input sources:

• HDMI: Connect your laptop, gaming console, Blu-ray player, or streaming device (e.g., Fire Stick) using an HDMI cable.
• USB: Insert a USB flash drive to play media files directly. The projector supports playing PPT, Excel, and Word documents.
• AV: Use the AV cable for older devices.
• 3.5mm Audio Output: Connect external speakers or headphones if desired.

Figure 4: Direct media playback from a USB drive.

Figure 5: Connecting a Fire Stick for streaming HDCP-protected content.

5. Operating Instructions

5.1 Power On/Off

Press the power button on the projector or the remote control to turn the device on or off.

5.2 Focus Adjustment

Rotate the focus ring on the projector lens slowly until the projected image appears sharp and clear. For best results, ensure the projector is positioned directly facing the screen.

5.3 Keystone Correction

The K7 projector features advanced keystone correction to adjust distorted images into a perfect rectangle.

• 6D Auto Keystone Correction: This innovative feature automatically corrects the image to a rectangular shape regardless of the projector's angle. No manual adjustments are typically needed for basic setup.
• 4-Point and 4D Keystone Correction: For more precise adjustments, you can use the traditional 4-point and 4D keystone correction options via the remote control. This allows for fine-tuning each corner or side of the image independently.

Figure 6: 6D Auto Keystone Correction in action.

5.4 Screen Mirroring (Wireless Connection)

The K7 projector supports 2.4G and 5G dual-band WiFi for smoother wireless screen mirroring from your mobile devices or Windows 10 computer.

Figure 7: Wireless screen mirroring setup.

5.4.1 iOS Device Screen Mirroring

1. Turn on WiFi on the settings icon from the main menu of the projector.
2. Select “iOS Cast” from the main menu.
3. Connect your iOS device and the projector to the same Wi-Fi router.
4. On your iOS device, turn on "Screen Mirroring" (or "AirPlay Mirroring"), select the projector device from the list, and connect.

5.4.2 Android Phone Screen Mirroring

1. Select “Miracast” in the user interface after powering on the projector.
2. Turn on the “Screen mirroring” function on your Android phone (this function may be named differently, e.g., Smart View, Wireless Display, Screen Cast, etc., depending on your phone model).
3. Select the "V7" (or K7) projector device from the list and click to connect.

5.5 Bluetooth Connection

The K7 projector features Bluetooth 5.1 with an SRS sound system, allowing connection to external audio devices for enhanced sound.

• Go to the Bluetooth settings on the projector.
• Enable Bluetooth and search for available devices.
• Select your Bluetooth headset, speaker, or Airpods from the list to pair.

Figure 8: Bluetooth 5.1 connection with external audio devices.

5.6 Zoom Function

The projector includes a 100%-70% zoom out function. This allows you to shrink the image size without physically moving the projector, providing flexibility in placement and screen fitting.

Figure 9: Image zoom out function.

6. Maintenance

Proper maintenance ensures the longevity and optimal performance of your projector.

• Cleaning the Lens: Use a soft, lint-free cloth specifically designed for optical lenses. Avoid abrasive materials or harsh chemicals.
• Cleaning the Exterior: Wipe the projector's exterior with a soft, dry cloth. Do not use liquid cleaners directly on the device.
• Dust Prevention: Keep the projector in a clean, dust-free environment. Regularly clean any air vents to prevent dust buildup, which can affect cooling and performance.
• Storage: When not in use for extended periods, store the projector in its original carrying bag or a protective case in a cool, dry place.

7. Troubleshooting (FAQ)

Q: There is no sound when connecting with a Fire Stick or similar streaming device.

A: If you experience no sound while playing videos from apps like Netflix via a Fire Stick, please disable Dolby Sound in the Fire Stick's settings. Navigate to: Settings > Display and Sound > Audio > Dolby Digital Out, and then turn off "Dolby Digital Plus".

Q: The edges of the projected image are a little blurry even after focus adjustment.

A: First, ensure the projector is placed approximately 2.5 meters directly in front of the screen. Then, adjust the focus ring very slowly until the center of the picture is clear. For LCD projectors, it is normal for about 10% of the edges to be slightly less sharp than the center.

Q: There is a small black spot in the image.

A: This issue can typically be resolved. Please contact customer support for assistance.

Q: There is a lag when connected with a Bluetooth speaker.

A: Bluetooth technology in projectors is relatively new. If you experience lag with Bluetooth speakers, there are two primary solutions:

• Plug an external Bluetooth transmitter into the projector. This can improve compatibility and reduce lag with various Bluetooth speakers.
• Connect the projector to your speaker using a 3.5mm AUX audio cable. This provides a direct, wired connection that eliminates Bluetooth lag.

8. User Tips

• The projector's optimal projected dimensions range from 30 to 300 inches for the best viewing experience.
• The K7 projector is Bluetooth 5.1 compatible, allowing for seamless connection with a wide range of Bluetooth audio devices.
• For presentations, you can directly play PPT, Excel, and Word files from a USB drive, making it convenient for business or educational use.
• Utilize the 6D Auto Keystone Correction for quick and effortless image alignment, especially when the projector is not perfectly centered.

9. Warranty and Support

YABER provides a 5-year warranty and lifetime professional support for the K7 projector. If you encounter any issues or have questions regarding your projector, please contact YABER customer support for prompt assistance. Refer to the warranty card included in your package for specific terms and contact details.