The TCL 43S405 is a 43-inch 4K Ultra HD Smart LED TV with Roku TV platform, 3840 x 2160 resolution, built-in Wi-Fi, three HDMI inputs, USB port, Ethernet, composite video input, digital audio output, and headphone jack. Features include streaming apps, voice remote control, HDR compatibility, screen mirroring, and mobile app control. Below are key sections for safety, features, installation, setup, operation, and troubleshooting.
Key components: 4K Ultra HD LED display with Roku TV OS, Voice Remote Control, HDMI inputs, USB port, Ethernet port, headphone jack, digital audio output.
| Feature | Description |
|---|---|
| HDMI inputs | Three HDMI 2.0 ports for 4K devices |
| USB port | For media playback and service |
| Ethernet port | For wired internet connection |
| Headphone jack | For private audio listening |
| Digital audio output | Optical audio for sound systems |
| Composite video input | For legacy video devices |
| Power button | Turns TV on/off |
| Input button | Cycles through input sources |
| Volume buttons | Adjusts audio level |
| Microphone | For voice commands on remote |
Unpack and inspect contents. Place on stable surface or mount on wall.
WARNING! TV is heavy; use two people for handling. Ensure wall mount is rated for TV weight.
Power on TV; follow on-screen setup wizard.
CAUTION! Ensure stable surface and proper ventilation around TV.
Access settings via Home button on remote. Physical buttons: Power, Volume, Input.
Remote: Power, Home, Back, Navigation pad, Volume, Mute, Input, Streaming shortcut buttons, Voice search.
Picture Settings: Picture mode, Brightness, Contrast, Color, Tint, Sharpness, Advanced settings. Audio Settings: Volume mode, Equalizer, Surround sound. Network: Wi-Fi setup, Ethernet. System: About, Software update, Power, Factory reset.
HDMI: Connect gaming consoles, streaming devices, Blu-ray players. USB: Play media files or service. Optical audio: Connect to sound systems.
Tip: Label HDMI inputs for easy identification in menu.
Roku TV platform with thousands of streaming channels.
WARNING! Keep software updated for security and performance.
Audio Guide: Spoken menus for visually impaired. Closed Captions: Multiple caption options. High contrast theme: Easier reading. Button repeat rate: Adjust navigation speed.
Unplug before cleaning. Use soft, dry cloth for screen. Mild cleaner for cabinet only.
CAUTION! Never spray liquids directly on screen. Avoid abrasive cleaners.
FCC compliant: Class B digital device. Energy Star certified. Manufactured by TCL Corporation. Roku and Roku TV are trademarks of Roku, Inc. For support, visit support.tcl.com or contact 1-877-300-8837.
| Symptom | Possible Cause | Corrective Action |
|---|---|---|
| No power | Power cord/outlet | Check power connection; try different outlet; ensure power button on. |
| No picture | Input source/cables | Verify correct input selected; check HDMI cable connections. |
| Wi-Fi not connecting | Network/router | Restart router; check password; move closer to router. |
| Remote not working | Batteries/obstructions | Replace batteries; ensure line of sight to TV IR sensor. |
| Audio issues | Settings/cables | Check volume/mute; verify audio output settings; inspect cables. |
Reset: Settings > System > Power > System restart
Factory Reset: Settings > System > Advanced system settings > Factory reset
Service: 1-877-300-8837; support.tcl.com