TCL Model 55S451 Manual

The TCL Model 55S451 is a 55-inch 4K UHD Smart LED TV with HDR technology, built-in Roku TV platform, dual-band Wi-Fi, Ethernet connectivity, multiple HDMI inputs, USB ports, composite/component inputs, digital audio output, headphone jack, voice remote control, closed captioning, parental controls (default password 0000), sleep timer, and advanced picture/audio settings. Powered by 120V AC, 60Hz. 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. Smart TV Features 8. Accessibility Features 9. Care & Cleaning 10. Regulatory Information 11. Troubleshooting

Features at a Glance

Key components: 4K UHD LED panel with Roku TV platform, Voice Remote Control, HDMI inputs, USB ports, Ethernet port, Digital audio output, Headphone jack.

Feature	Description
HDMI inputs	For external devices like gaming consoles, streaming devices
USB ports	For media playback from USB drives
Ethernet port	For wired internet connection
Digital audio output	For external sound systems
Headphone jack	For private audio listening
AC input connector	For power connection
Composite inputs	Video and L/R audio inputs for older devices
POWER	Turns TV on/standby
INPUT	Cycles through input sources
Volume controls	Adjusts audio level

Installation

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

Connect antenna or cable/satellite: Attach coaxial cable to antenna input.
Connect HDMI devices: Use HDMI ports for modern devices like gaming consoles.
Connect internet: Use Ethernet cable or connect via Wi-Fi during setup.
Plug into AC power outlet.

WARNING! TV is heavy; use two people for handling. Ensure wall mount is properly installed if wall mounting.

First-Time Setup

Power on TV; follow on-screen setup wizard.

Connect to network: Select Wi-Fi network or use Ethernet.
Activate Roku TV: Follow prompts to create/link Roku account.
Program channels: Use antenna/cable setup in settings.
Install streaming channels: Browse Roku Channel Store.
Adjust picture settings: Use Quick Settings for picture mode.

CAUTION! Ensure stable surface; keep ventilation openings clear.

Specifications

Screen Size: 55 inches LED.
Resolution: 4K UHD (3840x2160).
HDR: HDR10, HLG support.
Smart Platform: Roku TV with streaming apps.
Sound: Dolby Audio, DTS TruSurround.
Connectivity: 3x HDMI, 2x USB, Ethernet, Wi-Fi, Bluetooth.
Power Source: 120V AC, 60Hz.
Operating Temp: 32°F to 104°F (0°C to 40°C).

Controls and Settings

Access settings via Home button on remote. Side Panel: POWER, INPUT, Volume controls.

Remote: POWER, Home, Back, Navigation buttons, Volume, Mute, Input, Streaming shortcut buttons.

Picture: Brightness, Contrast, Color, Tint, Sharpness, Backlight, Color Temperature, Motion settings. Audio: Volume mode, Speech clarity, Bass, Treble. System: Network, Display, Power, System update. Advanced: Developer options, Factory reset.

Connecting Devices

HDMI: For modern devices. Composite: For older devices. USB: For media playback.

Turn off TV before connecting devices.
Match cables to correct ports.
Select input via INPUT button or Home menu.
For gaming: Enable Game Mode in picture settings.

Tip: Use high-speed HDMI cables for 4K content.

Smart TV Features

Roku TV platform with thousands of streaming channels.

Home screen: Access all inputs and streaming channels.
Search: Find content across multiple streaming services.
Voice control: Use voice remote for commands.
Screen mirroring: Cast from compatible devices.
Private listening: Use Roku mobile app with headphones.
Mobile control: Use Roku app as secondary remote.

WARNING! Keep software updated for latest features and security.

Accessibility Features

Closed Captions: Enable in Accessibility settings. Audio Guide: For visually impaired. High contrast text: Improves readability. Parental Controls: Block content by rating (password 0000).

Care & Cleaning

Unplug before cleaning. Use soft, dry cloth for screen. For stubborn stains, lightly dampen cloth with water.

CAUTION! Do not use chemicals or abrasive cleaners. Avoid pressure on screen.

Regulatory Information

FCC Part 15: Class B digital device; complies with interference limits. Copyright © 2023 TCL; all rights reserved. For support, visit www.tcl.com or contact 1-877-300-8837. Roku and Roku TV are trademarks of Roku, Inc.

Troubleshooting

Symptom	Possible Cause	Corrective Action
No power	Power cord/outlet	Check power connection; try different outlet.
No picture/sound	Input selection	Verify correct input selected; check source device.
Wi-Fi issues	Network/router	Restart router; check network settings.
Remote not working	Batteries/obstacles	Replace batteries; ensure clear path to TV.
App issues	Software/cache	Update software; restart TV; reinstall app.

Reset: Settings > System > Power > System restart.

Factory Reset: Settings > System > Advanced system settings > Factory reset.

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