55 inch tcl roku tv 4k 55s401 manual

The TCL 55S401 is a 55-inch 4K Ultra HD Roku TV with HDR compatibility, built-in Roku OS streaming platform, dual-band Wi-Fi, Ethernet connectivity, multiple HDMI inputs with ARC support, USB port, composite video input, digital optical audio output, headphone jack, and voice remote control. Features include 4K resolution (3840x2160), HDR10/HLG support, Dolby Audio, screen mirroring, private listening, and the Roku Channel Store for accessing 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: 4K UHD LED display with Roku OS, Voice Remote, HDMI inputs, USB port, Ethernet port, optical audio output.

FeatureDescription
HDMI inputsMultiple HDMI 2.0 ports with ARC support (HDMI 1)
USB portFor media playback from USB drives
Ethernet portFor wired internet connection
Optical audio outputFor connecting to sound systems
Headphone jackFor private audio listening
Composite video inputFor older video devices
Wi-Fi connectivityDual-band 2.4GHz/5GHz wireless
Voice remoteWith microphone for voice commands
Power buttonTurns TV on/off
Input buttonCycles through input sources

Installation

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

  1. Connect antenna or cable: Use coaxial input for TV signal.
  2. Connect streaming devices: Use HDMI ports for gaming consoles, streaming sticks.
  3. Connect audio system: Use HDMI ARC or optical audio for soundbars/receivers.
  4. Connect to internet: Use Ethernet or Wi-Fi for streaming services.
  5. Plug into AC power outlet.

WARNING! TV is large and heavy; use two people for handling to avoid injury. Ensure wall mount is rated for TV weight.

First-Time Setup

Power on TV; follow Roku guided setup.

  1. Select language: Choose preferred language for interface.
  2. Connect to internet: Select Wi-Fi network or connect Ethernet cable.
  3. Activate TV: Follow on-screen instructions to complete activation.
  4. Scan for channels: Set up antenna/cable channels if using TV tuner.
  5. Update software: Allow automatic updates for latest features.
  6. Sign in to streaming services: Add your favorite streaming channels.

CAUTION! Ensure proper ventilation around TV; do not block vents.

Specifications

Controls and Settings

Access settings via Home button on remote or physical buttons on TV.

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

Picture Settings: Picture mode (Vivid, Standard, Movie, Sports), Brightness, Contrast, Color, Tint, Sharpness, Advanced settings (Color temperature, Noise reduction). Audio Settings: Volume mode (Leveling, Off), Speech clarity, Advanced audio (Surround sound, Audio delay). System Settings: Network, Display type, Power, System update, Advanced system settings.

Connecting Devices

HDMI: For modern devices (gaming consoles, streaming devices). USB: For media playback. Optical Audio: For sound systems.

  1. Turn off TV before connecting devices.
  2. Use high-speed HDMI cables for 4K content.
  3. Select input via Input button or Home menu.
  4. Configure audio output in Settings for external speakers.

Tip: Use HDMI 1 for ARC to connect soundbars for best audio experience.

Streaming and Apps

Access thousands of streaming channels through Roku Channel Store.

  1. Press Home button to access main menu.
  2. Navigate to Streaming Channels to browse available apps.
  3. Add channels: Select channel and choose Add Channel.
  4. Organize channels: Press Star button to move or remove channels.
  5. Private listening: Use Roku mobile app for headphone audio.
  6. Screen mirroring: Cast from compatible mobile devices.
  7. Voice search: Press microphone button to search across channels.

WARNING! Ensure stable internet connection for optimal streaming quality.

Accessibility Features

Audio Guide: Spoken menus for visually impaired. Closed Captions: Multiple caption options. High Contrast theme: For better visibility. Button repeat rate: Adjust navigation speed.

Care & Cleaning

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

CAUTION! Never use chemicals, solvents, or abrasive cleaners. Do not spray liquids directly on screen.

Regulatory Information

FCC compliant: Meets Class B digital device requirements. 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

SymptomPossible CauseCorrective Action
No picture/soundPower/input selectionCheck power connection; ensure correct input selected; try different HDMI port.
Wi-Fi connection issuesSignal strength/routerRestart router; move closer to router; check network password.
Remote not workingBatteries/obstructionsReplace batteries; ensure clear path to TV; pair remote if needed.
Apps not loadingInternet/update neededCheck internet connection; restart TV; check for system updates.
Poor picture qualitySettings/source qualityAdjust picture settings; ensure source is 4K compatible; check HDMI cable quality.

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

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

TCL 55S401 Roku TV User Manual © - All Rights Reserved 2025