SAMSUNG SAMUN75RU7100OB
Samsung 75-Inch 4K UHD 7 Series Smart TV User Manual
Model: UN75RU7100FXZA
1. Introduction
This user manual provides essential information for the safe and efficient operation of your Samsung 75-Inch 4K UHD 7 Series Smart TV. Please read this manual thoroughly before using the product and retain it for future reference.
The Samsung UN75RU7100FXZA offers a powerful 4K UHD processor, delivering four times the resolution of Full HD 1080p HDTV. It upscales content to 4K-level picture quality and features High Dynamic Range (HDR) for vibrant, lifelike colors. The slim design complements any living space, and smart features like One Remote and compatibility with voice assistants enhance user experience.
2. Product Overview

Figure 2.1: Front view of the Samsung 75-inch 4K UHD Smart TV.
This image displays the full front view of the Samsung 75-inch 4K UHD Smart TV, showcasing its slim bezels and stand design.
2.1 Key Features
- 4K UHD Processor: Optimizes TV performance by upscaling content to 4K picture quality.
- Enhanced Detail with HDR: Reveals millions of shades of color with vibrant, lifelike picture.
- PurColor Technology: Delivers a wide spectrum of colors for a realistic viewing experience.
- Smart TV Features: Includes One Remote, on-screen universal guide, and compatibility with Alexa and Google Assistant.
- Sleek, Slim Design: Modern aesthetic designed to complement your living space.
2.2 Product Dimensions

Figure 2.2: Dimensions and included accessories.
This image provides a detailed diagram of the TV's dimensions both with and without the stand, along with a visual representation of the remote control and other included items.
- With Stand: 66.3" W x 14" D x 41.6" H
- Without Stand: 66.3" W x 2.4" D x 38" H
3. Setup Guide
3.1 What's in the Box
Before beginning setup, ensure all components are present:
- Samsung 75-Inch 4K UHD Smart TV
- TV Stand (2 pieces)
- Power Cable
- Remote Control (TM1240A) with AAA batteries
- User Manual (this document)
3.2 Attaching the Stand
- Carefully place the TV screen-down on a soft, flat surface to prevent damage.
- Align the stand legs with the corresponding slots on the bottom of the TV.
- Secure the stand legs using the provided screws. Ensure they are firmly attached.

Figure 3.1: Side view of the TV with stand attached.
This image shows the TV from a side angle, highlighting the attached stand and the slim profile of the television.
3.3 Connecting Power and Devices
- Connect the power cable to the TV's power input and then to a wall outlet.
- Connect your external devices (e.g., cable box, Blu-ray player, gaming console) to the HDMI ports on the back of the TV.
- For internet connectivity, connect an Ethernet cable to the LAN port or connect wirelessly via Wi-Fi during initial setup.
Note: The TV features cable management channels along the bottom and clips on the rear of the stand to keep cables organized and out of sight.
4. Operating Your TV
4.1 Initial Setup and Smart Features
Upon first power-on, the TV will guide you through the initial setup process, including network connection, channel scanning, and smart feature configuration. The Tizen Smart Platform provides access to various streaming services and apps.
4.2 Remote Control Functions
The included remote control (TM1240A) provides full control over your TV's functions. Key buttons include:
- Power Button: Turns the TV on/off.
- Source Button: Selects input sources (HDMI, TV, etc.).
- Volume Up/Down: Adjusts audio volume.
- Channel Up/Down: Changes TV channels.
- Navigation Pad: Used to navigate menus and select items.
- Netflix, Prime Video, Hulu Buttons: Direct access to popular streaming services.
4.3 Picture and Sound Settings
Access the TV's settings menu to customize picture and sound. For optimal viewing, consider adjusting:
- Picture Mode: Choose from Standard, Dynamic, Movie, or adjust custom settings.
- Brightness & Contrast: Fine-tune for your viewing environment.
- Sound Mode: Select from Standard, Optimized, or custom equalizer settings.
5. Maintenance
5.1 Cleaning Your TV
To maintain the clarity and longevity of your screen:
- Always unplug the TV before cleaning.
- Use a soft, lint-free cloth lightly dampened with water or a specialized screen cleaner.
- Do not spray cleaner directly onto the screen.
- Wipe gently to avoid scratching the surface.
5.2 Software Updates
Regularly check for and install software updates to ensure optimal performance and access to the latest features. Updates can typically be found in the TV's settings menu under "Support" > "Software Update".
6. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| No Power | Power cable disconnected; outlet not working. | Check power cable connection; test outlet with another device. |
| No Picture/Sound | Incorrect input source selected; external device off. | Press the "Source" button on the remote; ensure external device is powered on. |
| Poor Picture Quality | Low-resolution source; incorrect picture settings. | Ensure source is 4K or high-definition; adjust picture settings. |
| Remote Not Working | Dead batteries; obstruction between remote and TV. | Replace batteries; remove any obstructions. |
7. Specifications
- Brand: SAMSUNG
- Model Number: SAMUN75RU7100OB
- Screen Size: 75 Inches
- Display Technology: LED
- Resolution: 4K (3840 x 2160)
- Refresh Rate: 60 Hz
- Color: CHARCOAL BLACK
- Item Weight: 81.6 Pounds
- Product Dimensions: 14 x 66.3 x 41.6 inches
- Connectivity Technology: Bluetooth, HDMI, USB, Wireless
- Supported Internet Services: Amazon Instant Video, Browser, Hulu, Netflix
- Included Components: Power Cable, Remote Control
8. Warranty and Support
For warranty information and customer support, please refer to the warranty card included with your product or visit the official Samsung support website. You can also find additional resources and FAQs online.
Online Support: www.samsung.com/us/support/
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