1. Introduction
This manual provides essential information for the safe and efficient operation of your TOSHIBA 75-inch Class C350 Series LED 4K UHD Smart Fire TV. Please read this manual thoroughly before using your television and retain it for future reference. This television integrates Fire TV, offering a unified home screen for live TV, streaming channels, and various applications.
2. Safety Information
Always follow basic safety precautions when using this television to reduce the risk of fire, electric shock, and injury.
- Do not expose the TV to rain or moisture.
- Do not block ventilation openings.
- Ensure proper grounding for the power cord.
- Avoid placing the TV on unstable surfaces.
- Unplug the TV during lightning storms or when unused for long periods.
- Refer all servicing to qualified service personnel.
3. What's in the Box
Verify that all components are present upon unpacking:
- TOSHIBA 75-inch Class C350 Series LED 4K UHD Smart Fire TV
- Voice Remote with Alexa
- Power Cable
- 2 AAA Batteries (for remote)
- Quick Start Guide (not included in this manual)
- TV Stands (if not wall-mounting)
4. Setup
4.1 Unpacking and Placement
Carefully remove the TV from its packaging. It is recommended that two people handle the 75-inch television due to its size and weight. Place the TV on a stable, flat surface or mount it securely to a wall using a compatible VESA mount (sold separately).

Image 1: Front view of the TOSHIBA 75-inch C350 Series Fire TV, showcasing its display and slim bezels.
4.2 Connecting the Power Cable
Connect the included power cable to the TV's power input and then to a wall outlet. Ensure the connection is secure.
4.3 Connecting External Devices
Utilize the various ports on the back of the TV to connect external devices such as Blu-ray players, game consoles, or sound systems. Common ports include HDMI, USB, and optical audio out.

Image 2: Rear view of the TOSHIBA 75-inch C350 Series Fire TV, highlighting the arrangement of various input and output ports for external device connections.
4.4 Remote Control Setup
Insert the two AAA batteries into the Voice Remote with Alexa, ensuring correct polarity. The remote will automatically pair with the TV during initial setup.

Image 3: A close-up view of the Fire TV Voice Remote, featuring the prominent Alexa voice command button.
4.5 Initial Power-On and Fire TV Setup
Press the power button on the remote or TV. Follow the on-screen instructions to complete the Fire TV setup, including connecting to your Wi-Fi network, logging into your Amazon account, and customizing settings.
5. Operating the TV
5.1 Basic Functions
- Power: Press the power button on the remote to turn the TV on or off.
- Volume: Use the volume up/down buttons on the remote.
- Input: Use the input button to switch between connected devices (HDMI 1, HDMI 2, etc.).
5.2 Fire TV Interface Navigation
Navigate the Fire TV home screen using the directional pad and select button on your remote. The home screen provides access to streaming apps, live TV, and system settings.

Image 4: The Fire TV interface displaying a variety of streaming applications and content options, illustrating the integrated entertainment hub.
5.3 Voice Remote with Alexa
Press and hold the Alexa button on your remote to issue voice commands. You can search for content, launch apps, control smart home devices, check weather, and more.
5.4 User Profiles
Create personalized user profiles to customize viewing experiences for different household members. Each profile can have its own recommendations and settings.

Image 5: A television screen displaying the Fire TV user profile selection interface, allowing multiple users to personalize their viewing experience.
5.5 Apple AirPlay
This TV supports Apple AirPlay, allowing you to stream content directly from your Apple devices (iPhone, iPad, Mac) to the television.
6. Maintenance
6.1 Cleaning the Screen
Gently wipe the screen with a soft, dry, lint-free cloth. For stubborn marks, lightly dampen the cloth with water or a specialized screen cleaner. Avoid harsh chemicals or abrasive materials.
6.2 Cleaning the Cabinet
Wipe the TV cabinet with a soft, dry cloth. Do not use liquid cleaners directly on the cabinet.
7. Troubleshooting
If you encounter issues with your TV, refer to the following common solutions:
- No Power: Ensure the power cable is securely connected to both the TV and the wall outlet. Try a different outlet.
- No Picture/Sound: Check that the correct input source is selected. Verify all cable connections to external devices.
- Remote Not Working: Replace the AAA batteries in the remote. Ensure there are no obstructions between the remote and the TV.
- Network Connection Issues: Restart your Wi-Fi router. Go to the TV's network settings to reconnect or troubleshoot the Wi-Fi connection.
- Picture Quality Issues: Adjust picture settings in the TV menu. Ensure the content source is high quality.
For persistent issues, consider performing a factory reset (refer to the TV's settings menu) or contact customer support.
8. Specifications
| Feature | Specification |
|---|---|
| Brand | TOSHIBA |
| Model Number | 75C350NU |
| Screen Size | 75 Inches |
| Display Technology | LED |
| Resolution | 4K UHD (3840 x 2160) |
| Refresh Rate | 60 Hz |
| Aspect Ratio | 16:9 |
| Operating System | Fire TV |
| Special Features | Apple AirPlay, Voice Remote with Alexa |
| Connectivity Technology | Wi-Fi |
| Product Dimensions (D x W x H) | 13.3 x 40.2 x 66 inches |
| Item Weight | 50.5 pounds |
| Voltage | 120 Volts |
| Wattage | 60 watts |
| Included Components | Power Cable |
| Batteries Required | 2 AAA batteries (for remote) |
9. Warranty and Support
For warranty information, please refer to the warranty card included with your product or visit the official TOSHIBA support website. For technical assistance or customer service, please contact TOSHIBA customer support through their official channels. Keep your purchase receipt and model number (75C350NU) readily available when seeking support.





