1. Important Safety Information
Before operating your TV, please read this manual thoroughly and retain it for future reference. Follow all warnings and instructions marked on the product and in the manual. Always disconnect the power cord from the wall outlet before cleaning the product.
- Do not block any ventilation openings.
- Do not install near any heat sources.
- Protect the power cord from being walked on or pinched.
- Only use attachments/accessories specified by the manufacturer.
- Refer all servicing to qualified service personnel.
2. Product Overview
The LG OLED55C5PSA is a 55-inch OLED evo 4K UHD Smart TV, featuring the α9 AI Processor Gen8 for enhanced picture and sound. It operates on webOS 25 and supports advanced gaming features like 120Hz native refresh rate, 140Hz VRR, G-sync, and Free Sync. Dolby Vision and Dolby Atmos provide an immersive viewing experience.
Front View

This image shows the front of the LG OLED55C5PSA TV, highlighting its slim bezel and the stand. The screen displays a colorful, dynamic image.
Side View

This image provides a side view of the LG OLED55C5PSA TV, emphasizing its ultra-thin OLED panel design.
Rear View and Connectivity

This image displays the back of the LG OLED55C5PSA TV, detailing the arrangement of its input and output ports, including HDMI and USB connections.
Dimensions

This diagram illustrates the precise dimensions of the LG OLED55C5PSA TV, including width, height, and depth, useful for installation planning.
3. Setup Guide
3.1 Unpacking and Assembly
- Carefully remove the TV from its packaging.
- Place the TV face down on a soft, flat surface to prevent screen damage.
- Attach the stand or wall mount bracket according to the separate assembly instructions provided with the stand/mount. Ensure all screws are securely fastened.
- Lift the TV upright and place it on a stable surface or mount it securely on the wall.
3.2 Connecting Peripherals
Connect your external devices such as Blu-ray players, game consoles, and sound systems to the TV's input ports.
- HDMI: Use HDMI cables to connect devices like set-top boxes, game consoles, or Blu-ray players to the HDMI ports (supports 4K 120Hz, eARC, VRR, ALLM, QMS on all 4 ports).
- USB: Connect USB storage devices for media playback or software updates.
- Ethernet: For a wired internet connection, connect an Ethernet cable to the LAN port.
- Power: Connect the power cable to the TV and then to a wall outlet.
3.3 Initial Power On and Basic Settings
- Press the power button on the remote control or the TV.
- Follow the on-screen instructions to select your language, country, and time zone.
- Network Setup:
- For Wi-Fi, select your network from the list and enter the password.
- For wired connection, ensure the Ethernet cable is connected.
- Remote Control Pairing: If your Magic Remote is not paired, point it at the TV and press the Wheel (OK) button.
- Complete the initial setup steps, including channel tuning (if applicable) and agreeing to terms and conditions.
4. Operating Your TV
4.1 Basic Remote Control Functions
- Power: Turns the TV on or off.
- Volume (+/-): Adjusts the volume level.
- Channel (Up/Down): Changes TV channels.
- Input: Selects the input source (HDMI 1, HDMI 2, etc.).
- Home: Accesses the webOS Smart TV home screen.
- Settings: Opens the TV settings menu.
4.2 Smart TV Features (webOS 25 & ThinQ AI)
Your LG OLED TV runs on webOS 25, providing a user-friendly interface for accessing apps, streaming services, and connected devices. ThinQ AI enables voice control and smart home integration.
- Home Dashboard: Manage connected devices and smart home appliances.
- App Store: Download and install various applications.
- Voice Control: Use the Magic Remote's microphone to issue commands or search for content.
4.3 Picture and Sound Settings
Optimize your viewing and listening experience through the TV's extensive settings.
- Picture Mode: Select from various presets (e.g., Vivid, Standard, Cinema, Game Optimizer) or customize settings like brightness, contrast, and color.
- AI Picture Pro: The α9 AI Processor Gen8 automatically enhances picture quality based on content.
- Dolby Vision: Experience enhanced HDR content with dynamic metadata.
- Sound Mode: Choose sound presets (e.g., Standard, Cinema, AI Sound Pro) or adjust equalizer settings.
- AI Sound Pro: The TV's AI analyzes audio and optimizes sound for your room and content, providing virtual 11.1.2 up-mixing.
- Dolby Atmos: Enjoy immersive, multi-dimensional audio with compatible content.
4.4 Gaming Features
This TV is equipped with features designed for an optimal gaming experience.
- 120Hz Native Refresh Rate: Provides smooth motion for fast-paced games.
- 140Hz VRR (Variable Refresh Rate): Synchronizes the TV's refresh rate with the game console's frame rate to reduce screen tearing and stuttering.
- G-sync & Free Sync: Compatibility with NVIDIA G-sync and AMD Free Sync technologies for tear-free gaming.
- ALLM (Auto Low Latency Mode): Automatically switches the TV to a low-latency mode when a game console is detected.
- QMS (Quick Media Switching): Reduces black screen delays when switching between different frame rates.
5. Maintenance
5.1 Cleaning Your TV
- Screen: Gently wipe the screen with a soft, dry microfiber cloth. For stubborn marks, lightly dampen the cloth with distilled water or a specialized screen cleaner (apply to cloth, not directly to screen).
- Frame and Stand: Use a soft, dry cloth to wipe dust.
- Do Not Use: Alcohol, benzene, thinners, or other volatile substances, as they may damage the screen or finish.
5.2 Software Updates
Regularly check for and install software updates to ensure your TV has the latest features and performance improvements. You can usually find this option in the TV's settings menu under "Support" or "About This TV".
5.3 General Care
- Avoid placing the TV in direct sunlight or near heat sources.
- Ensure adequate ventilation around the TV.
- Do not place heavy objects on top of the TV.
6. Troubleshooting
If you encounter issues with your TV, refer to the following common solutions before contacting service personnel.
| Problem | Possible Cause | Solution |
|---|---|---|
| No power | Power cord disconnected; power outlet issue. | Ensure power cord is securely connected. Test the outlet with another device. |
| No picture, but sound is present | Incorrect input source; external device issue. | Press the Input button on the remote to select the correct source. Check external device connections. |
| No sound, but picture is present | Volume muted or too low; external audio system issue. | Increase volume. Check if TV is muted. Verify external audio system connections and settings. |
| Remote control not working | Batteries depleted; remote not paired. | Replace batteries. Re-pair Magic Remote by pointing at TV and pressing Wheel (OK). |
| Network connection issues | Wi-Fi password incorrect; router issue. | Re-enter Wi-Fi password. Restart your router and modem. Try a wired connection. |
6.1 Factory Reset
If problems persist, a factory reset may resolve them. This will erase all personalized settings and return the TV to its original state. Navigate to Settings > General > Reset to Initial Settings.
7. Specifications
| Feature | Detail |
|---|---|
| Model Name | OLEDC5 (OLED55C5PSA) |
| Screen Size | 55 Inches |
| Display Technology | 4K OLED |
| Resolution | 4K (3840 x 2160) |
| Refresh Rate | 120 Hz (Native), 140 Hz (VRR) |
| Processor | α9 AI Processor 4K Gen8 |
| Operating System | webOS 25 |
| AI Sound | α9 AI Sound Pro (Virtual 11.1.2 Up-mix) |
| HDR Format Supported | Dolby Vision |
| Integrated Surround Sound | Dolby Atmos |
| HDMI Input | 4ea (supports 4K 120Hz, eARC, VRR, ALLM, QMS) |
| USB Ports | 1 (Total USB 3.0 Ports: 1) |
| Connectivity Technology | Bluetooth, HDMI, USB, Wi-Fi |
| Product Dimensions (D x W x H) | 23D x 122.2W x 75.7H centimetres |
| VESA Mount Standard | 200 x 200 mm |
| Included Components | Magic Remote, Remote Control Batteries, Power Cable |
| Color | Black |
8. Warranty and Support
Your LG OLED55C5PSA TV comes with a manufacturer's warranty.
- Warranty Period: 3 years manufacturer warranty.
- Support: For technical assistance, troubleshooting beyond this manual, or warranty claims, please contact LG customer support. Refer to the official LG website or the documentation included in your TV box for specific contact details in your region.