1. Introduction
This manual provides essential information for setting up, operating, and maintaining your Toshiba 75-inch Class C350 Series LED 4K UHD Smart Fire TV. Please read this manual thoroughly before using your TV to ensure proper and safe operation.

Figure 1.1: Toshiba 75-inch Class C350 Series 4K UHD Smart Fire TV
Key Features:
- Fire TV Experience: Integrates live TV, streaming channels, and apps on a unified home screen.
- Regza Engine 4K: Toshiba's high-performance 4K engine for stunning picture quality.
- 4K Resolution: Four times the detail of Full HD for immersive visuals.
- Dolby Vision HDR and HDR10: Enhances realism with superior contrast and color.
- Dolby Atmos: Delivers immersive audio for a cinematic experience.
- Bezel-less Design: Maximizes screen area for an expansive view.
- Auto Low Latency Game Mode: Reduces input lag for a smoother gaming experience.
- Alexa Voice Remote: Control TV functions and search content using voice commands.
2. What's in the Box
Carefully unpack your TV and ensure all components are present. If any items are missing or damaged, please contact customer support.
- Toshiba 75-inch Class C350 Series 4K UHD Smart Fire TV
- Alexa Voice Remote
- TV Stand (2 pieces)
- Power Cord
- Quick Start Guide
- Screws for Stand Assembly
3. Setup
3.1 Attaching the TV Stand
- Place the TV face down on a soft, clean surface to prevent screen damage.
- Align each stand piece with the corresponding slots on the bottom of the TV.
- Secure the stands using the provided screws. Ensure they are tightened firmly.

Figure 3.1: Attaching the TV Stand
3.2 Connecting External Devices
Your Toshiba Fire TV offers multiple ports for connecting various devices. Refer to the back panel for port locations.

Figure 3.2: TV Back Panel with Ports
- HDMI Ports: Connect Blu-ray players, gaming consoles, cable/satellite boxes.
- USB Ports: For connecting USB drives for media playback.
- Ethernet Port: For a wired internet connection.
- Antenna/Cable Input: For connecting an antenna or cable TV.
3.3 Initial Power-On and Fire TV Setup
- Connect the power cord to the TV and then to a power outlet.
- Press the power button on the TV or the Alexa Voice Remote to turn on the TV.
- Follow the on-screen instructions to complete the initial setup, including connecting to your Wi-Fi network and signing in to your Amazon account.
4. Operating Your TV
4.1 Using the Alexa Voice Remote
The included Alexa Voice Remote allows for intuitive control of your TV and Fire TV features.

Figure 4.1: Alexa Voice Remote
- Voice Control: Press the microphone button and speak commands like "Find dramas" or "Open Netflix."
- Navigation: Use the directional pad to navigate menus and select items.
- App Shortcuts: Dedicated buttons for popular streaming services provide quick access.
4.2 Navigating the Fire TV Interface
The Fire TV home screen provides easy access to your favorite content.

Figure 4.2: Fire TV Home Screen
- Home Screen: Displays recommended content, recently used apps, and live TV options.
- Apps: Access a wide range of streaming applications.
- Live TV: Integrate over-the-air channels and streaming services.

Figure 4.3: Popular Streaming Apps
4.3 Gaming Features
The C350 Series TV is optimized for gaming with its Auto Low Latency Game Mode.

Figure 4.4: Enhanced Gaming Experience
- Reduced Input Lag: Automatically switches to a low-latency mode when a game console is detected, ensuring responsive gameplay.
5. Picture and Sound Settings
Optimize your viewing and listening experience by adjusting picture and sound settings.
5.1 Picture Quality
- Regza Engine 4K: Processes images for stunning clarity and detail.
- Dolby Vision HDR & HDR10: Provides a wider range of colors and deeper contrast.
- Color Remaster: Restores original color vibrancy for natural-looking images.
- Access picture modes (Standard, Movie, Sport, Game, etc.) and advanced settings through the TV's menu.
5.2 Sound Quality
- Dolby Atmos: Creates a multi-dimensional audio experience.
- Adjust sound modes (Standard, Music, Movie, Clear Voice, etc.) and equalizer settings in the audio menu.
6. Maintenance
6.1 Cleaning Your TV
- Always unplug the TV before cleaning.
- Use a soft, dry cloth to wipe the screen and cabinet. For stubborn marks, lightly dampen the cloth with water or a mild, non-abrasive cleaner specifically designed for electronics.
- Avoid using alcohol, benzene, thinners, or other volatile substances, as they may damage the TV.
6.2 Software Updates
Your Fire TV will periodically check for and install software updates automatically when connected to the internet. Ensure your TV remains connected to the internet for optimal performance and access to the latest features.
7. Troubleshooting
If you encounter issues with your TV, refer to the following common solutions:
| Problem | Possible Solution |
|---|---|
| No Power | Check if the power cord is securely plugged into the TV and the outlet. Try a different outlet. |
| No Picture/Sound | Verify correct input source. Check cable connections to external devices. Restart the TV. |
| Remote Not Responding | Replace batteries. Ensure no obstructions between remote and TV. Re-pair the remote if necessary. |
| Network Connection Issues | Restart your router/modem. Check Wi-Fi password. Try a wired Ethernet connection. |
| Apps Not Loading | Check internet connection. Clear app cache/data in TV settings. Reinstall the app. |
For more complex issues, please refer to the online support resources or contact Toshiba customer service.
8. Specifications
Key technical specifications for the Toshiba 75C350LU TV:
| Feature | Detail |
|---|---|
| Screen Size | 75 Inches (191 cm diagonal) |
| Display Technology | LED |
| Resolution | 4K UHD (3840 x 2160) |
| Refresh Rate | 60 Hz |
| Aspect Ratio | 16:9 |
| Item Weight | 24.9 pounds |
| Product Dimensions (DxWxH) | 3.3"D x 66"W x 37.8"H |
| Special Feature | Apple Airplay |
| Connectivity Technology | Wi-Fi |
9. Warranty and Support
Your Toshiba TV comes with a manufacturer's warranty. Please refer to the warranty card included with your product for specific terms and conditions.
Customer Support:
For technical assistance, troubleshooting, or warranty claims, please visit the official Toshiba support website or contact their customer service line. Keep your model number (75C350LU) and purchase information readily available when seeking support.
You can also find general support information and FAQs on the TOSHIBA Store on Amazon.





