TCL Roku TV Model 43S421 Manual

The TCL Roku TV Model 43S421 is a 43-inch 4K UHD Smart TV with Roku OS, built-in Wi-Fi, HDR compatibility, voice remote control, multiple HDMI inputs, USB port, Ethernet connection, headphone jack, 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. Using Roku Features 8. Accessibility Features 9. Care & Cleaning 10. Regulatory Information 11. Troubleshooting

Features at a Glance

Key components: 4K UHD LED display with Roku OS, Voice Remote, HDMI inputs, USB port, Ethernet port, Headphone jack, Composite AV input.

Feature	Description
HDMI inputs	For external devices like gaming consoles, streaming devices
USB port	For media playback from USB drives
Ethernet port	For wired internet connection
Headphone jack	For private audio listening
Composite AV input	For older video devices
Wi-Fi	Built-in wireless connectivity
Voice Remote	Voice search and control capabilities
Power button	Turns TV on/off
Input button	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: Attach coaxial cable to antenna input.
Connect streaming devices: Use HDMI ports for modern devices.
Connect to internet: Use Wi-Fi or Ethernet cable for network connection.
Plug into AC power outlet.
Install batteries in remote control.

WARNING! TV is heavy; use two people for handling. Ensure wall mount is properly rated for TV weight.

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 create/link Roku account.
Channel setup: Add favorite streaming channels.
Picture settings: Configure display preferences (Brightness, Contrast, Color).
Audio settings: Set up sound preferences and volume modes.

CAUTION! Ensure stable surface; keep ventilation areas clear.

Specifications

Screen Size: 43 inches 4K UHD LED.
Resolution: 3840 x 2160 pixels.
Smart Platform: Roku OS with access to 5000+ channels.
Sound: Dolby Audio, DTS TruSurround.
Connectivity: 3x HDMI, 1x USB, Ethernet, Wi-Fi, Composite AV.
HDR Support: HDR10, HLG.
Voice Control: Built-in with remote.
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. Physical buttons: Power, Volume, Input.

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

Picture Settings: Picture mode (Vivid, Standard, Movie, Sports), Brightness, Contrast, Color, Tint, Sharpness, Advanced settings. Audio Settings: Volume mode, Equalizer, Speech clarity. System Settings: Network, Display, Audio, Power, System update. Roku Settings: Theme, Screensaver, Privacy, Accessibility.

Connecting Devices

HDMI: For modern devices (gaming consoles, streaming boxes). USB: For media playback. Composite: For older devices.

Turn off TV before connecting devices.
Connect HDMI cables to HDMI ports.
For audio systems, use HDMI ARC or optical audio out.
Select input via Input button (HDMI 1, HDMI 2, HDMI 3, AV, Live TV).

Tip: Use HDMI 1 for ARC compatibility with soundbars.

Using Roku Features

Access thousands of streaming channels and features.

Home screen: Press Home button to access main menu.
Search: Use voice or text search across multiple services.
Streaming: Select channels like Netflix, Hulu, YouTube.
Live TV: Access antenna channels through Live TV tile.
Private listening: Use Roku mobile app for headphone audio.
Screen mirroring: Cast from compatible devices.
Mobile control: Use Roku app as secondary remote.
Guest mode: Temporary access for visitors.

WARNING! Keep Roku account credentials secure. Update software regularly.

Accessibility Features

Audio Guide: Spoken menu navigation. Closed Captions: Multiple style options. High Contrast Theme: Improved visibility. Button remapping: Customize remote functions.

Care & Cleaning

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

CAUTION! Do not use chemical cleaners or spray directly on screen. Avoid pressure on screen surface.

Regulatory Information

FCC Part 15: Class B digital device compliant. Energy Star certified. Copyright © 2023 TCL. All trademarks are property of their respective owners. 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 internet	Wi-Fi/router	Check network connection; restart router; reconnect to Wi-Fi.
Remote not working	Batteries/obstructions	Replace batteries; ensure clear line of sight to TV sensor.
No sound	Audio settings/mute	Check volume level; disable mute; verify audio output settings.
Picture issues	Input/settings	Verify correct input selected; adjust picture settings; check cables.

Reset: Settings > System > Power > System restart.

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

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