TCL Roku TV Model 55S421 Manual

The TCL Roku TV Model 55S421 is a 55-inch 4K UHD Smart TV with Roku OS, built-in Wi-Fi, HDR compatibility, voice remote control, multiple HDMI inputs, USB port, Ethernet connection, and access to thousands of streaming channels. Below are key sections for safety, features, installation, setup, operation, and troubleshooting.

1. Features at a Glance 2. Installation 3. First-Time Setup 4. Specifications 5. Controls and Settings 6. Connecting Devices 7. Streaming and Apps 8. Accessibility Features 9. Care & Cleaning 10. Regulatory Information 11. Troubleshooting

Features at a Glance

Key components: 55-inch 4K UHD display, Roku Smart TV platform, Voice Remote, Multiple HDMI inputs, USB port, Ethernet port, Wi-Fi connectivity.

Feature	Description
4K Ultra HD Resolution	3840 x 2160 pixels for crystal clear picture quality
Roku Smart TV OS	Access to thousands of streaming channels and apps
HDMI Inputs	Multiple HDMI ports for gaming consoles, streaming devices
USB Port	For media playback from USB drives
Ethernet Port	Wired internet connection option
Wi-Fi Connectivity	Built-in wireless for internet access
Voice Remote	Voice search and control capabilities
HDR Compatible	High Dynamic Range for enhanced contrast and colors
Headphone Jack	For private audio listening
Power Input	Standard AC power connection

Installation

Unpack and inspect contents. Place on stable surface or mount on wall.

Attach stand: Secure TV base to bottom of TV using provided screws.
Connect antenna or cable: Use coaxial input for TV signal reception.
Connect external devices: Use HDMI ports for gaming consoles, streaming devices.
Connect to internet: Use Wi-Fi or Ethernet cable for smart features.
Plug into AC power outlet.

WARNING! TV is large and heavy; use two people for handling to avoid injury or damage.

First-Time Setup

Power on TV; follow on-screen Roku setup wizard.

Select language: Choose preferred language for interface.
Connect to internet: Select Wi-Fi network and enter password.
Activate TV: Follow prompts to activate Roku account.
Scan for channels: Auto-scan for available broadcast channels.
Update software: Allow automatic software updates if available.
Install streaming apps: Browse Roku Channel Store for popular apps.

CAUTION! Ensure stable surface; keep ventilation areas clear for proper cooling.

Specifications

Screen Size: 55 inches 4K UHD
Resolution: 3840 x 2160 pixels
Smart Platform: Roku TV OS
Connectivity: Wi-Fi, Ethernet, 3x HDMI, 1x USB, 1x Composite AV
HDR Support: HDR10, HLG compatible
Sound: Dolby Audio, DTS TruSurround
Voice Control: Built-in voice remote with microphone
Power Source: 120V AC, 60Hz
Operating System: Roku TV with automatic updates

Controls and Settings

Access settings via Roku home screen or physical buttons. Front Panel: Power button, Input selection, Volume controls.

Remote: Power, Home, Back, Navigation arrows, OK, Volume, Mute, Voice search, Streaming service shortcuts.

Picture Settings: Brightness, Contrast, Color, Sharpness, Backlight, Color Temperature, Motion Enhancement. Audio Settings: Volume mode, Equalizer, Dialogue enhancer. System Settings: Network, Display, Audio, Power, System update. Roku Settings: Accounts, Preferences, Parental controls, Accessibility.

Connecting Devices

HDMI: For modern devices like gaming consoles, streaming sticks. USB: For media playback. Composite: For older devices.

Turn off TV before connecting devices.
Connect HDMI cables to HDMI ports (1, 2, or 3).
Connect USB devices to USB port for media playback.
Use composite inputs for older gaming systems or DVD players.
Select input source using Input button on remote.

Tip: Label HDMI inputs for easy identification of connected devices.

Streaming and Apps

Access thousands of streaming channels through Roku platform.

Press Home button to access Roku home screen.
Navigate to Streaming Channels to browse available apps.
Search for specific apps using search function.
Add channels to home screen for quick access.
Use voice search to find content across multiple services.
Manage installed channels and organize home screen.
Create Roku account for personalized experience.
Use Roku mobile app for additional control options.

WARNING! Ensure stable internet connection for optimal streaming quality.

Accessibility Features

Closed Captions: Enable in Accessibility settings. Audio Guide: For visually impaired users. High Contrast Text: Improved readability. Voice Guidance: Spoken menu navigation.

Care & Cleaning

Unplug before cleaning. Use soft, dry cloth for screen; slightly damp cloth for cabinet. Avoid liquids, chemicals, or abrasive materials.

CAUTION! Never spray liquids directly on screen; do not use window cleaners or solvents.

Regulatory Information

FCC Part 15: Class B digital device compliant with interference limits. Copyright © 2023 TCL; all rights reserved. Roku is a registered trademark of Roku, Inc. For support, visit www.support.tcl.com or contact 1-877-300-8837.

Troubleshooting

Symptom	Possible Cause	Corrective Action
No power	Power cord/outlet	Check power connection; try different outlet; ensure power button is on.
No picture/sound	Input selection	Check input source; ensure correct HDMI/input selected.
Wi-Fi connection issues	Network/router	Restart router; check network password; move closer to router.
Remote not working	Batteries/obstructions	Replace batteries; ensure clear line of sight to TV sensor.
Apps not loading	Internet/account	Check internet connection; restart TV; update Roku software.
Poor picture quality	Settings/source	Adjust picture settings; check source material quality; ensure 4K content.

Reset: Settings > System > Power > System restart for soft reset.

Factory Reset: Settings > System > Advanced system settings > Factory reset (erases all settings).

Service: 1-877-300-8837; www.support.tcl.com