1. Introduction
This user manual provides detailed instructions for the setup, operation, and maintenance of your iSinbox GC357 4K Projector. Designed for both indoor and outdoor use, this projector features advanced auto-focus, 6D keystone correction, WiFi6, and Bluetooth 5.2 connectivity, delivering a native 1080P resolution with 4K support for an immersive viewing experience.
Image: The iSinbox GC357 4K Projector, showcasing its sleek design and primary features like Auto Focus, 4K Support, DIY brightness, WiFi 6, and Bluetooth 5.3.
2. Package Contents
Please check the package contents upon unboxing to ensure all items are present:
- iSinbox GC357 4K Projector
- Power Cable (UK plug shown in video, actual plug type may vary by region)
- HDMI Cable
- AV Cable (RCA composite)
- Remote Control Unit
- Additional Dust Filter
- Cleaning Swab and Cloth
- User Manual (this document)
Image: A collection of accessories typically included with the projector, such as various cables, a remote control, and cleaning tools.
3. Product Overview
The iSinbox GC357 projector is equipped with various ports and features for versatile connectivity and optimal performance.
Key Features:
- Native 1080P Resolution with 4K Support: Delivers crisp and clear images.
- 850 ANSI Lumens Brightness: Provides a bright display suitable for various lighting conditions.
- AI Auto Focus & 6D Keystone Correction: Automatically adjusts image clarity and shape for perfect projection.
- WiFi 6 & Bluetooth 5.2: Ensures fast and stable wireless connectivity for streaming and audio output.
- Dual-Directional Bluetooth: Allows connection to external speakers or use the projector as a Bluetooth speaker.
- Multiple Input Ports: HDMI, USB, AV for wide device compatibility.
- Long Lamp Life: Up to 100,000 hours of light source life.
- Efficient Heat Dissipation: Designed for quiet operation (less than 36dB).
Image: An infographic highlighting the projector's main features, including 4K support, 850 ANSI Lumens, Bluetooth 5.3, WiFi 6, Native 1080P, 100,000 hours lamp life, and automatic adjustments.
4. Setup
4.1 Placement
Place the projector on a stable, flat surface. Ensure there is adequate ventilation around the unit to prevent overheating. For optimal viewing, position the projector directly in front of your screen or wall.
- Projection Distance: The optimum projection distance for a 300-inch screen is approximately 3 meters (9.84 feet). Refer to the specifications for detailed projection ratios.
- Surface: Project onto a smooth, light-colored wall or a dedicated projector screen for best image quality.
Image: A visual representation of different screen sizes (42", 97", 200", 300") achievable at varying projection distances, illustrating the flexibility of placement.
4.2 Power Connection
Connect the power cable to the projector's power input port and then plug the other end into a power outlet.
4.3 Initial Power On
Press the power button on the projector or the remote control to turn on the device. The projector will initiate its auto-focus and keystone correction sequence.
5. Operating Instructions
5.1 Auto Focus and Keystone Correction
The iSinbox GC357 features AI auto-focus and 6D auto keystone correction. Upon startup or movement, the projector will automatically adjust the image for clarity and a perfect rectangular shape. This includes auto obstacle avoidance and auto screen alignment.
Image: A visual demonstrating the projector's AI full automation capabilities, including auto-focus, keystone correction, obstacle avoidance, and screen alignment for an optimal display.
5.2 Connectivity
5.2.1 WiFi Connection (WiFi 6, 5G & 2.4G)
To connect to a wireless network:
- Navigate to the 'Settings' menu on the projector.
- Select 'Network' or 'WiFi Settings'.
- Choose your desired WiFi network from the list.
- Enter the password if prompted and confirm.
The projector supports WiFi 6 for smoother, lower latency, and faster streaming.
Image: Illustrates the projector's advanced WiFi 6 connectivity, highlighting benefits such as smoother streaming, lower latency, and faster speeds compared to older WiFi standards.
5.2.2 Bluetooth Connection (Bluetooth 5.2)
The projector supports two-way Bluetooth 5.2, allowing it to connect to external audio devices (like speakers or headphones) or function as a standalone Bluetooth speaker for your phone.
- Connecting to External Speaker: Go to 'Bluetooth Settings', enable Bluetooth, and select your desired speaker from the list of available devices.
- Using as Bluetooth Speaker: Switch the projector to Bluetooth speaker mode (refer to the on-screen menu), then connect your phone or other device to the projector via Bluetooth.
Image: Depicts the two-way Bluetooth 5.3 functionality, showing how the projector can output audio to an external speaker or receive audio from a mobile device to act as a speaker.
5.2.3 HDMI and USB Connections
Connect devices such as laptops, gaming consoles, or TV sticks using the HDMI port. The USB port can be used for media playback or for connecting a USB drive for office presentations (Word, Excel, PowerPoint, PDF).
- HDMI: Plug your HDMI cable into the projector's HDMI port and the other end into your device. Select the HDMI input source from the projector's menu.
- USB: Insert your USB drive into the USB port. The projector's media player interface will typically appear, allowing you to browse and play content.
Image: Shows the projector connected to a TV stick via HDMI, illustrating its compatibility with various streaming devices for multimedia and 4K video playback.
Image: Demonstrates the projector's capability for office presentations directly from a USB drive, supporting common document formats like Word, Excel, PowerPoint, and PDF.
5.3 Image Settings (DIY Brightness, Modes, Wallpaper)
The iSinbox GC357 allows for personalized image settings through its MTK chip. You can adjust brightness, select different image modes, and even customize the wallpaper.
- DIY Image Brightness: Adjust the brightness level to suit your viewing environment.
- DIY Image Modes: Choose from preset image modes (e.g., Standard, Vivid, Movie) or create custom modes.
- DIY Wallpaper: Personalize the projector's idle screen with your preferred images.
- Companion Mode: Explore additional features and settings available through the companion mode.
Image: An illustration of the MTK chip's capabilities, including options for DIY image brightness, image modes, wallpaper customization, and a companion mode for enhanced user experience.
6. Maintenance
6.1 Cleaning the Lens
Use the provided cleaning cloth or a soft, lint-free cloth to gently wipe the projector lens. For stubborn smudges, use a lens cleaning solution applied to the cloth, not directly to the lens. Avoid abrasive materials that could scratch the lens.
6.2 Cleaning the Dust Filter
Regularly clean the dust filter to maintain optimal airflow and prevent overheating. The projector comes with an additional dust filter for replacement if needed. Refer to the projector's physical design for the filter's location and removal instructions.
6.3 Storage
When not in use, store the projector in a cool, dry place, away from direct sunlight and extreme temperatures. Use the original packaging or a protective case to prevent dust accumulation and physical damage.
7. Troubleshooting
If you encounter issues with your iSinbox GC357 projector, please refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| No image or blurry image | Out of focus; incorrect keystone; lens dirty; incorrect input source. | Allow auto-focus to complete; check for manual keystone adjustment if needed; clean the lens; ensure correct input source is selected. |
| No sound | Volume too low; external speaker not connected or paired; incorrect audio output setting. | Increase volume; check Bluetooth connection to external speaker; ensure projector's audio output is set correctly. |
| Remote control not working | Batteries low or incorrectly inserted; obstruction between remote and projector. | Replace batteries; ensure clear line of sight to the projector's IR receiver. |
| Overheating/Shuts down | Blocked ventilation; dust filter clogged. | Ensure adequate space around the projector for airflow; clean the dust filter. |
| WiFi connection unstable | Distance from router; interference; network congestion. | Move projector closer to router; minimize interference from other devices; try connecting to a different WiFi band (2.4G vs 5G). |
For further assistance, please contact iSinbox customer support.
8. Specifications
| Feature | Detail |
|---|---|
| Brand | iSinbox |
| Model Number | GC357 |
| Native Resolution | 1080P (4K Support) |
| Brightness | 850 ANSI Lumens |
| Connectivity | WiFi 6 (5G & 2.4G), Bluetooth 5.2 (Two-way), HDMI, USB, AV |
| Auto Features | AI Auto Focus, 6D Auto Keystone Correction, Auto Obstacle Avoidance, Auto Screen Alignment |
| Light Source Life | Up to 100,000 hours |
| Noise Level | Less than 36dB |
| Item Weight | 3.98 pounds |
| Product Dimensions | 6.97 x 3.46 x 9.37 inches |
| Controller Type | Button Control (and Remote Control) |
| Image Contrast Ratio | High |
| Light Source Wattage | 75 Watts |
| Video Encoding Support | H.265 or VP9 |
9. Warranty & Support
iSinbox is committed to providing excellent customer service and support for your projector.
- 24 Hours Quick Response: Expect a response to your inquiries within 24 hours.
- 30 Days Return: Return within 30 days for an exchange or refund.
- Lifetime Technical Support: Benefit from lifetime technical customer support for your product.
Image: Visuals representing iSinbox's customer support commitments: 24-hour response, 30-day return policy, and lifetime technical support.
For specific warranty details or to contact support, please visit the official iSinbox website or refer to the contact information provided in your product packaging.
