Amazon 4K43N400A
Amazon Fire TV 4-Series 4K UHD Smart TV User Manual
Model: 4K43N400A
This manual provides essential information for setting up, operating, maintaining, and troubleshooting your Amazon Fire TV 4-Series 4K UHD Smart TV. Please read thoroughly before use.
1. Setup and Installation
1.1 Unboxing and Included Components
Carefully remove all components from the packaging. Ensure all items listed below are present.

Image: All components included in the Amazon Fire TV 4-Series package.
- Fire TV 4-Series 43" Television
- Fire TV Alexa Voice Remote
- Power Cord
- 2 AAA Batteries (for remote)
- 4 Screws (for stand assembly)
- TV Stand (2 legs)
- Quick Start Guide
1.2 Attaching the TV Stand
- Place the TV screen-down on a soft, clean surface to prevent scratches.
- Align each TV leg with the corresponding screw holes on the bottom of the TV.
- Secure each leg with the provided screws. Ensure they are tightened firmly.
1.3 Connecting Peripherals
Identify the various ports on the back and side of your Fire TV.

Image: Detailed view of the input/output ports on the Fire TV 4-Series.
- Power: Connect the power cord to the TV's power input and then to a wall outlet.
- HDMI (3 HDMI 2.0 + 1 HDMI 2.1 with eARC): Connect external devices such as gaming consoles, Blu-ray players, or cable boxes. The HDMI 2.1 port supports eARC for enhanced audio return channel functionality.
- Ethernet: For a wired internet connection, connect an Ethernet cable from your router to the TV's Ethernet port.
- USB: Connect USB storage devices for media playback.
- Digital Optical Audio Output: For connecting to soundbars or audio receivers that support optical input.
- Cable/Ant: For connecting an antenna for over-the-air broadcasts.
1.4 Initial Power On and Setup
- After connecting all necessary cables, press the power button on the TV or the Fire TV Alexa Voice Remote.
- Follow the on-screen instructions to select your language, connect to a Wi-Fi network (or use Ethernet), and sign in with your Amazon account.
- The TV will guide you through setting up live TV channels (if an antenna is connected) and installing essential apps.
2. Operating Your Fire TV
2.1 Navigating the Fire TV Interface
The Fire TV interface is designed for easy content discovery. Use the directional pad and select button on your Alexa Voice Remote to navigate menus, select apps, and play content.
- Home Screen: Provides quick access to your favorite apps, recently watched content, and personalized recommendations.
- Find: Use the 'Find' menu to search for movies, TV shows, apps, and more.
- Live: Access live TV channels from connected antennas or supported streaming services.
2.2 Using the Alexa Voice Remote
The included Fire TV Alexa Voice Remote allows for convenient voice control.
- Voice Button: Press and hold the voice button, then speak your command. For example, say "Find action movies," "Open Netflix," or "Switch to HDMI 1."
- Power Button: Turns the TV on or off.
- Volume Buttons: Adjusts the TV volume.
- Mute Button: Mutes or unmutes the TV audio.
- App Buttons: Dedicated buttons for popular streaming services (e.g., Prime Video, Netflix, Disney+).
The remote can also control certain functions (power, volume) on compatible IR-enabled soundbars and A/V receivers.
2.3 Streaming Content and Apps
Your Fire TV provides access to a vast library of streaming content.
- App Store: Download and install your favorite streaming apps from the Fire TV Appstore.
- Subscriptions: Many apps require separate subscriptions for full access to their content.
- Free Content: Access free streaming services and ad-supported content.
2.4 Input Switching
To switch between connected devices (e.g., game console, cable box):
- From the Home screen, navigate to the 'Inputs' section.
- Select the desired HDMI input.
- Alternatively, use the voice command: "Switch to HDMI [number]."
3. Maintenance
3.1 Cleaning Your TV
- Always unplug the TV before cleaning.
- Use a soft, dry, lint-free cloth to gently wipe the screen and frame.
- For stubborn marks, lightly dampen the cloth with water. Avoid using harsh chemicals, abrasive cleaners, or alcohol-based solutions, as these can damage the screen.
- Do not spray liquid directly onto the TV.
3.2 General Care
- Avoid placing the TV in direct sunlight or near heat sources.
- Ensure adequate ventilation around the TV to prevent overheating.
- Protect the TV from dust by regularly cleaning the vents.
- Do not place heavy objects on top of the TV.
4. Troubleshooting
If you encounter issues with your Fire TV, refer to the following common problems and solutions.
| Problem | Possible Solution |
|---|---|
| No Power | Ensure the power cord is securely plugged into both the TV and a working electrical outlet. Try a different outlet. |
| No Picture / Black Screen | Check that the correct input source is selected. Verify all HDMI cables are securely connected. Restart the TV by unplugging it for 30 seconds and plugging it back in. |
| No Sound | Check the volume level and ensure the TV is not muted. Verify external audio devices (soundbar, receiver) are properly connected and powered on. Check audio settings in the TV menu. |
| Remote Not Responding | Replace the AAA batteries in the remote. Ensure there are no obstructions between the remote and the TV. Try re-pairing the remote by holding the Home button for 10 seconds. |
| Wi-Fi Connection Issues | Restart your router and modem. Go to TV Settings > Network and try reconnecting to your Wi-Fi network. Ensure the Wi-Fi password is correct. |
| Apps Not Loading / Slow Performance | Check your internet connection speed. Clear the cache for the problematic app (Settings > Applications > Manage Installed Applications). Restart the TV. |
For more detailed troubleshooting, refer to the online support resources or contact Amazon customer service.
5. Specifications
Key technical specifications for the Amazon Fire TV 4-Series 43" model.
| Feature | Detail |
|---|---|
| Model Number | 4K43N400A |
| Screen Size | 43" (Viewable display size: 42.5") |
| Resolution | 3840 x 2160 (4K UHD) |
| HDR Format | HDR 10, HLG |
| Refresh Rate | 60 Hz |
| Backlight Type | Direct LED |
| HDMI Ports | 3 HDMI 2.0 + 1 HDMI 2.1 with eARC |
| Ethernet | 1 Ethernet port |
| USB | 1 USB port |
| Digital Optical Audio Output | 1 Digital Optical Audio Port |
| Audio Support | Dolby Digital Plus with passthrough of Dolby-encoded audio |
| Audio Power | 8W + 8W |
| Operating System | Fire TV OS |
| Product Size (without stand) | 38.1" x 22.3" x 3.5" |
| Weight (without stand) | 15.5 lb |
| VESA Wall Mount Standard | 300 mm x 300 mm |
| Connectivity | Wi-Fi or Ethernet |
6. Warranty and Support
6.1 Warranty Information
The Like-New Amazon Fire TV 4-Series 43" comes with a 1-year limited warranty, which is the same as a new device. This device has been refurbished, tested, and certified to look and work like new.
6.2 Software Security Updates
This device receives guaranteed software security updates until at least four years after the device is last available for purchase as a new unit on Amazon websites. For specific information related to your device, visit Manage Your Content and Devices.
6.3 Customer Support
For additional support, troubleshooting, or warranty claims, please visit the official Amazon support website or contact Amazon customer service directly. You can also explore the online user manual for more information about the Fire TV 4-Series.
Related Documents - 4K43N400A
![]() |
Amazon Fire TV 4-Series 4K UHD Smart TV Setup Guide A comprehensive guide to setting up and using your Amazon Fire TV 4-Series 4K UHD Smart TV, including unboxing, installation, remote pairing, network connection, and troubleshooting. |
![]() |
Amazon Fire TV 4-Series Setup Guide A comprehensive guide to setting up your Amazon Fire TV 4-Series, including unboxing, base installation, wall mounting, network connection, and general operation. Learn how to connect your TV, pair the remote, and utilize Alexa voice commands. |
![]() |
Amazon Fire TV User Manual: 4-Series, Omni, and Omni QLED Series Comprehensive user manual for Amazon Fire TV smart televisions, covering setup, features, settings, and troubleshooting for 4-Series, Omni Series, and Omni QLED Series models. |
![]() |
Amazon Fire TV User Manual: Setup, Features, and Troubleshooting Guide Comprehensive user manual for Amazon Fire TV 4-Series, Omni Series, and Omni QLED Series smart TVs. Provides detailed instructions on setup, connecting devices, navigating features, and troubleshooting common issues. |
![]() |
Fire TV Omni Series: Setup, Features, and Troubleshooting Guide A comprehensive guide to setting up your Fire TV Omni smart TV (43", 50", 55"). Learn about unboxing, stand and wall installation, connecting to networks, using the remote, understanding TV features, and troubleshooting common issues. Includes information on Alexa voice control and app integration. |
![]() |
Fire TV Omni Quick Start Guide Official quick start guide for Amazon Fire TV Omni series, including setup, wall mounting, port identification, and troubleshooting steps. |
Ask a question about this manual
Ask about setup, troubleshooting, compatibility, parts, safety, or missing instructions. Manuals+ will review the question and use this page’s manual context to help answer it.





