JVC SI55UR
JVC 55-inch UHD 4K Roku TV User Manual
Model: SI55UR
Brand: JVC
1. Important Safety Instructions
Read all instructions before operating the TV. Keep these instructions for future reference. Follow all warnings and instructions marked on the product.
- Power Source: Operate the TV only from the type of power source indicated on the marking label.
- Ventilation: Slots and openings in the cabinet are provided for ventilation. Do not block or cover these openings.
- Water and Moisture: Do not use this product near water.
- Cleaning: Unplug the TV from the wall outlet before cleaning. Use a damp cloth for cleaning. Do not use liquid or aerosol cleaners.
- Attachments: Do not use attachments not recommended by the product manufacturer.
- Lightning: For added protection during a lightning storm, or when it is left unattended and unused for long periods of time, unplug it from the wall outlet.
- Servicing: Do not attempt to service this product yourself. Refer all servicing to qualified service personnel.
2. What's in the Box
Verify that all components are present before proceeding with the setup.
- JVC 55-inch UHD 4K Roku TV
- Remote Control
- User Manual (this document)
- TV Stand (2 pieces)
- Screws for TV Stand
- Batteries (2x AAA for remote)

Image: The JVC 55-inch UHD 4K Roku TV, showcasing its sleek design, integrated Roku streaming, LED display, and 4K resolution capabilities. The image also displays the included stand.
3. Setup
3.1 Attaching the TV Stand
- Carefully place the TV screen-down on a soft, clean surface to prevent damage.
- Align each stand piece with the corresponding screw holes on the bottom of the TV.
- Secure each stand piece using the provided screws. Ensure they are tightened firmly.
3.2 Mounting the TV (Optional)
If you plan to wall-mount your TV, refer to the instructions provided with your wall-mount kit.
Note: Wall mount kit sold separately.
3.3 Connecting Power
- Plug the power cord into the AC IN port on the back of the TV.
- Plug the other end of the power cord into a wall outlet.
3.4 Initial Setup Wizard
Upon first power-on, the TV will guide you through the initial setup process, including:
- Language selection
- Network connection (Wi-Fi)
- Roku account setup or sign-in
- Channel scan (for antenna/cable connections)
4. Operating Your TV
4.1 Remote Control Functions
The remote control provides access to all TV functions. Insert the two AAA batteries into the remote control, observing polarity.
- Power: Turns the TV on or off.
- Home: Returns to the Roku Home screen.
- Directional Pad: Navigates menus and selects items.
- OK/Select: Confirms selections.
- Back: Returns to the previous screen.
- Volume Up/Down: Adjusts volume.
- Mute: Mutes or unmutes sound.
- Channel Up/Down: Changes channels (for antenna/cable).
- Playback Controls: Play, Pause, Fast Forward, Rewind.
- Shortcut Buttons: Direct access to popular streaming services (e.g., Netflix, Prime Video, YouTube).
4.2 Navigating the Roku TV Interface

Image: The JVC Roku TV home screen, showing a grid of popular streaming applications like YouTube, Prime Video, Google Play, Twitch, Apple TV, Red Bull TV, and Music, along with content recommendations.
The Roku TV home screen provides easy access to streaming channels, input sources, and settings. Use the directional pad on your remote to navigate.
- Streaming Channels: Access thousands of free and paid streaming channels.
- Live TV: If an antenna is connected, access live broadcast TV.
- Inputs: Switch between HDMI, USB, and other connected devices.
- Settings: Adjust picture, sound, network, and system settings.
5. Connecting External Devices
Your JVC Roku TV offers multiple ports for connecting external devices.
- HDMI Ports (x4): Connect Blu-ray players, game consoles, cable/satellite boxes, and other HDMI-enabled devices.
- USB Port (x1): Connect USB drives for media playback (photos, videos, music).
- AV Input (x1): Connect older devices using composite video and stereo audio cables.
- Antenna/Cable Input: Connect an antenna for over-the-air broadcasts or a cable TV connection.
- Optical Digital Audio Out: Connect to a soundbar or AV receiver for enhanced audio.
- Headphone Jack: Connect headphones for private listening.
To switch inputs, press the Home button on your remote, then navigate to the desired input source on the home screen.
6. Maintenance and Care
6.1 Cleaning the TV
- Always unplug the TV 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 cleaner specifically designed for TVs.
- Wipe the cabinet and stand with a soft, dry cloth.
- Do not use abrasive cleaners, waxes, or solvents.
6.2 General Care
- Avoid exposing the TV to direct sunlight or heat sources.
- Do not place heavy objects on top of the TV.
- Ensure adequate ventilation around the TV.
- Unplug the TV during lightning storms or when unused for extended periods.
7. Troubleshooting
Before contacting support, try these common solutions.
| Problem | Possible Cause / Solution |
|---|---|
| No power | Check if the power cord is securely plugged into the TV and the wall outlet. Try a different outlet. |
| No picture, but sound is present | Ensure the correct input source is selected. Check cable connections to external devices. |
| No sound, but picture is present | Check volume level and mute setting. Ensure audio cables are connected correctly. |
| Remote control not working | Replace batteries. Ensure no obstructions between remote and TV. |
| Cannot connect to Wi-Fi | Check Wi-Fi password. Restart your router. Move TV closer to router. |
| Picture quality is poor | Check source resolution. Adjust picture settings (brightness, contrast, sharpness). |
8. Specifications
| Feature | Detail |
|---|---|
| Model Name | SI55UR |
| Screen Size | 55 inches |
| Display Technology | LED |
| Resolution | 3840 x 2160 (4K UHD) |
| Refresh Rate | 60 Hz |
| Operating System | Roku TV |
| Connectivity | Wi-Fi, 4x HDMI, 1x USB, 1x AV Input |
| Audio Output | 2 x 10W |
| Aspect Ratio | 16:9 |
| Dimensions (W x D x H) | 134 x 15 x 83 cm (approx.) |
| Weight | 17 kg (approx.) |
| Included Accessories | Remote Control, User Manual, TV Stand, Batteries |

Image: A table detailing the general, display, audio, input/output, and accessory specifications for the JVC 55-inch Full HD Roku TV 4K, including model number SI55UR, resolution, and connectivity options.
9. Warranty and Support
9.1 Warranty Information
This JVC product is covered by a limited warranty. Please refer to the warranty card included with your product for specific terms and conditions, including warranty period and coverage details. Keep your purchase receipt as proof of purchase.
9.2 Customer Support
For technical assistance, troubleshooting beyond this manual, or warranty claims, please contact JVC customer support. Contact information can typically be found on the JVC official website or on the warranty card.
When contacting support, please have your TV's model number (SI55UR) and serial number ready. The serial number is usually located on a sticker on the back of the TV.
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