Roku 40R3B5
Roku Smart TV – 40-Inch Select Series Instruction Manual
Model: 40R3B5 | Brand: Roku
Product Overview
The Roku Select Series Full HD TV is designed to provide a seamless and enjoyable entertainment experience. This smart TV integrates streaming capabilities directly, offering a bright Full HD picture and enhanced sound features. Its intuitive interface allows for easy navigation and access to a wide range of streaming content.

Figure 1: Roku 40-Inch Select Series Smart TV and its retail packaging.
What's in the Box
Verify that all components are present before beginning setup.
- Roku Select Series TV 40" FHD
- Stands and screws (4x)
- Roku TV remote with batteries (2x AAA included)
- Quick Start Guide

Figure 2: Included components: Roku Select Series TV, TV stands, stand screws, pre-installed AAA batteries, and Roku Voice Remote.
Setup
1. Physical Setup
Choose between placing the TV on a stand or wall-mounting it. Ensure proper ventilation around the TV.
- Stand Installation: Attach the provided stands to the bottom of the TV using the included screws. Ensure they are securely fastened.
- Wall Mounting: If wall-mounting, use a VESA-compatible wall mount (not included) and follow the mount manufacturer's instructions.
2. Initial Power On and Network Connection
- Connect the power cord to the TV and a power outlet.
- Insert the included AAA batteries into the Roku Voice Remote.
- Press the power button on the remote to turn on the TV.
- Follow the on-screen instructions to select your language and connect to your Wi-Fi network.
- Activate your Roku account or create a new one if prompted.
Operating Your TV
Home Screen Navigation
The Roku Home Screen provides quick access to your favorite streaming apps, inputs, and free live TV. Use the directional pad on your remote to navigate through options.

Figure 3: The customizable Roku TV home screen with streaming apps and inputs.
Streaming Apps and Content
Access thousands of streaming channels and content directly from your TV. Popular apps like Netflix, Hulu, Disney+, and Prime Video are readily available. You can also explore free live TV options.
Using the Voice Remote
The Roku Voice Remote simplifies content discovery and control. Press the microphone button to use voice commands for searching, playing content, and controlling your TV.

Figure 4: Roku Voice Remote with labeled buttons for TV power, volume, mute, voice control, instant replay, and app shortcuts.
Connecting External Devices (Inputs)
The TV features multiple input ports for connecting external devices such as gaming consoles, Blu-ray players, and cable boxes.
- HDMI Ports: Connect devices using HDMI cables. HDMI 1 supports ARC (Audio Return Channel) for simplified audio connections to soundbars or AV receivers.
- USB Port: For media playback from USB drives.
- Antenna/Cable Input: For connecting an antenna for over-the-air broadcasts or a cable TV connection.

Figure 5: Rear view of the Roku TV showing connectivity options including HDMI, USB, and Reset button.
Picture and Sound Settings
Adjust picture and sound settings to optimize your viewing experience. Access these options through the Settings menu on the home screen.
- Picture Modes: Choose from various preset picture modes (e.g., Movie, Sports, Vivid) or customize settings like brightness, contrast, and color.
- Sound Modes: Select sound modes (e.g., Standard, Speech, Night) or adjust bass and treble. The TV is designed for clear speech and louder sound.
Official Product Videos
Explore these official videos from Roku for more insights into your TV's features and capabilities.
ROKU - Select Series 2K Overview
Video 1: An official overview of the Roku Select Series 2K TV, highlighting its design and core functionalities.
Roku TV OS Features
Video 2: A demonstration of the Roku TV operating system, showcasing its user-friendly interface and various features.
Maintenance
Cleaning Your TV
To maintain the clarity and longevity of your TV screen, follow these cleaning guidelines:
- Always unplug the TV before cleaning.
- Use a soft, lint-free cloth to gently wipe the screen and frame.
- For stubborn marks, lightly dampen the cloth with water or a screen-specific cleaning solution. Never spray liquid directly onto the screen.
- Avoid using abrasive cleaners, waxes, or solvents.
Software Updates
Your Roku TV automatically receives software updates to improve performance and add new features. Ensure your TV is connected to the internet for these updates to occur. You can check for updates manually in the Settings menu under System > Software Update.
Troubleshooting
If you encounter issues with your Roku TV, try the following common troubleshooting steps:
- No Power: Ensure the power cord is securely plugged into both the TV and a working electrical outlet. Try a different outlet.
- No Picture/Sound: Verify that the correct input source is selected. Check all cable connections (HDMI, AV, etc.) for looseness.
- Remote Not Responding: Replace the remote batteries. Ensure there are no obstructions between the remote and the TV.
- Network Connection Issues: Restart your Wi-Fi router. Go to Settings > Network > Check connection on your TV to diagnose.
- App Crashing/Freezing: Restart the app. If the issue persists, try restarting the TV (Settings > System > Power > System restart).
- Poor Picture Quality: Adjust picture settings (Settings > TV picture settings). Ensure your content source is high quality.
For more detailed troubleshooting or persistent issues, refer to the online support resources available on the Roku website or contact Roku customer support.
Specifications
| Feature | Detail |
|---|---|
| Brand | Roku |
| Model Number | 40R3B5 |
| Screen Size | 40 Inches |
| Display Technology | LED |
| Resolution | 1080p Full HD |
| Refresh Rate | 60 Hz |
| Aspect Ratio | 16:9 |
| Connectivity | Wi-Fi, USB, HDMI (3 ports, 1 with ARC) |
| Special Features | Voice Remote, Customizable Home Screen |
| Item Weight | 18.26 pounds |
| Product Dimensions (D x W x H) | 8.1 x 35.6 x 22.4 inches |
| Voltage | 120 Volts (AC) |
| Wattage | 64 watts |
Important Safety Information
Please read and understand all safety instructions before using your TV.
- Energy Consumption: Approximately 83 Watt-hours per year, based on 4 hours of operation per day. Actual consumption may vary.
- Ventilation: Ensure adequate space around the TV for proper airflow to prevent overheating.
- Power Cord: Do not place heavy objects on the power cord. Avoid damaging or modifying the power cord.
- Cleaning: Always unplug the TV before cleaning. Use a soft, dry cloth.
- Placement: Place the TV on a stable, level surface or securely wall-mount it to prevent tipping.
Warranty and Support
Your Roku TV comes with a limited manufacturer's warranty. For detailed warranty information, product registration, and technical support, please visit the official Roku support website or refer to the warranty card included with your product.
Online resources often include FAQs, troubleshooting guides, and contact information for customer service.
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