Introduction
This manual provides essential information for the setup, operation, and maintenance of your AOC Roku TV 40S5045/78G Full HD Smart TV. Please read these instructions carefully before using your television to ensure proper functionality and safety. Keep this manual for future reference.
Setup
1. Unpacking
Carefully remove the TV and all accessories from the packaging. Ensure all components are present:
- AOC Roku TV
- Remote Control with Batteries
- TV Stands (2) and Screws
- Power Cord
- Quick Start Guide (if included)
2. Stand Installation (Tabletop)
If placing the TV on a table, attach the two included stands:
- Place the TV face down on a soft, clean surface to prevent screen damage.
- Align each stand with the corresponding slots on the bottom of the TV.
- Secure each stand with the provided screws. Ensure they are tightened firmly.
3. Wall Mounting (Optional)
For wall mounting, use a VESA-compatible wall mount kit (not included). Refer to the wall mount kit's instructions for proper installation. The TV's VESA mounting pattern is typically 200x200mm.

Image: Rear view of the TV, illustrating the VESA mounting points for wall installation and the location of various input ports.
4. Connecting Peripherals
Connect your devices to the TV's input ports. The TV features multiple HDMI inputs for devices like Blu-ray players, game consoles, and cable boxes, as well as USB ports for media playback.

Image: Side profile of the TV, highlighting the accessible HDMI, USB, and other connectivity ports for external devices.
- HDMI: Connect HDMI cables from your devices to the HDMI ports on the TV.
- Antenna/Cable: Connect an antenna or cable TV coaxial cable to the ANT/CABLE input.
- Power: Plug the power cord into the TV's power input, then into a wall outlet. This TV operates at 220V.
5. Initial Power On and Roku Setup
After connecting all necessary cables, plug in the TV. The TV will power on and guide you through the initial Roku setup process, which includes:
- Language selection.
- Network connection (Wi-Fi).
- Roku account creation or login.
- Channel (app) installation.
Operating
1. Remote Control Overview
The Roku TV remote control provides intuitive navigation and quick access to features.

Image: The remote control for the AOC Roku TV, showing dedicated buttons for power, navigation, volume control, and direct access to popular streaming services.
- Power Button: Turns the TV on or off.
- Directional Pad (D-Pad): Navigates menus and selects items.
- OK Button: Confirms selections.
- Home Button: Returns to the Roku Home screen.
- Back Button: Returns to the previous screen.
- Volume Up/Down: Adjusts the TV volume.
- Mute Button: Mutes or unmutes the sound.
- Instant Replay: Jumps back a few seconds in video playback.
- Star Button (*): Accesses options for selected items.
- Dedicated App Buttons: Provide quick access to popular streaming services like Netflix, Disney+, and Prime Video.
2. Navigating Roku OS
The Roku Home screen displays all your installed channels (apps) and input sources. Use the D-Pad to move between options and the OK button to select.

Image: The TV screen showing the Roku operating system's home interface, featuring a grid of streaming application icons and navigation options.
- Home: Access your installed apps and TV inputs.
- Streaming Channels: Browse and add new apps from the Roku Channel Store.
- Settings: Adjust TV and Roku system settings.
3. Streaming Applications
Your AOC Roku TV comes with a wide range of streaming applications. To use them, ensure your TV is connected to the internet. Select an app from the Home screen to launch it.
4. Input Selection
To switch between connected devices (e.g., game console, cable box), navigate to the Home screen and select the corresponding input tile (e.g., HDMI 1, HDMI 2).
5. Picture and Sound Settings
Access picture and sound settings through the Roku Settings menu. You can adjust brightness, contrast, color, sound mode, and other preferences to optimize your viewing experience.
Maintenance
1. Cleaning
To clean the TV screen and cabinet:
- Unplug the TV from the power outlet before cleaning.
- Use a soft, lint-free cloth to gently wipe the screen. For stubborn marks, lightly dampen the cloth with water or a screen-specific cleaning solution (do not spray directly on the screen).
- Wipe the TV cabinet with a soft, dry cloth. Avoid using abrasive cleaners or solvents.
2. Software Updates
Your Roku TV automatically checks for and installs software updates when connected to the internet. These updates provide new features and performance improvements. You can manually check for updates in the Settings menu: Settings > System > System update.
Troubleshooting
If you encounter issues with your TV, refer to the following common solutions:
- No Power: Ensure the power cord is securely plugged into both the TV and a working wall outlet. Check if the outlet has power.
- No Picture/Sound: Verify that the correct input source is selected. Check all cable connections (HDMI, antenna). Try restarting the TV by unplugging it for 30 seconds and plugging it back in.
- Remote Not Responding: Replace the batteries in the remote control. Ensure there are no obstructions between the remote and the TV's IR sensor.
- Network Connection Issues: Check your Wi-Fi router and internet connection. Restart your router. Go to Settings > Network > Check connection on your TV to diagnose the issue.
- Picture Quality Issues: Adjust picture settings (brightness, contrast, sharpness) in the Settings menu. Ensure the content source is high quality.
For persistent issues, consult the online support resources or contact AOC customer service.
Specifications
- Brand:
- AOC
- Model:
- 40S5045/78G
- Screen Size:
- 40 Inches
- Display Technology:
- LED
- Resolution:
- 1080p (Full HD)
- Refresh Rate:
- 60 Hz
- Aspect Ratio:
- 16:9
- Operating System:
- Roku TV
- Compatible Internet Services:
- Roku, YouTube, Netflix, Amazon Prime, Google TV
- Hardware Interface:
- HDMI
- Compatible Audio Input:
- HDMI
- Mounting Type:
- Wall Mount and Tabletop Stand
- Product Dimensions (W x H x D):
- 97.5 x 56.9 x 11.3 cm
- Product Weight:
- 7.26 kg
- Power Requirement:
- 220V
- Year:
- 2024
Warranty
Your AOC Roku TV is covered by a limited warranty. Please refer to the warranty card included with your product or visit the official AOC website for detailed terms and conditions. Keep your proof of purchase for warranty claims.
Support
For further assistance, technical support, or service inquiries, please visit the official AOC support website or contact their customer service department. You can typically find contact information on the AOC website or in your product's packaging.
Online Resources: www.aoc.com





