Smartby SMTB-RMT-TX100U
RMT-TX100U Universal Remote Control Instruction Manual
Brand: Smartby | Model: SMTB-RMT-TX100U
1. Introduction and Overview
The Smartby RMT-TX100U Universal Remote Control is designed to provide seamless control for a wide range of Sony LCD, LED, HDTV, and Smart Bravia TVs. This remote serves as a direct replacement for your original Sony TV remote, offering immediate functionality without the need for complex programming or setup. It includes essential controls for TV operation and a dedicated Netflix shortcut button for convenient access to streaming services.

Figure 1: Front view of the RMT-TX100U Universal Remote Control, showing all buttons and layout.
2. Setup
The RMT-TX100U remote control is designed for immediate use with compatible Sony TVs. No programming, pairing, or complex setup procedures are required.
2.1 Battery Installation
- Locate the battery compartment on the back of the remote control.
- Slide the battery compartment cover downwards to open it.
- Insert two (2) AAA alkaline batteries into the compartment, ensuring the positive (+) and negative (-) terminals align correctly with the indicators inside.
- Slide the battery compartment cover back into place until it clicks securely.
Once batteries are installed, the remote is ready to operate your Sony TV. Point the remote directly at the TV's infrared receiver for optimal performance.

Figure 2: Back view of the remote control showing the battery compartment. Note: Batteries are not included with the remote.
3. Operating Instructions
This remote control provides all standard functions for your Sony TV. Below are common button functions:
- POWER: Turns the TV on or off.
- INPUT: Cycles through available input sources (HDMI, AV, etc.).
- SYNC MENU: Accesses the TV's Sync Menu for connected devices.
- Number Buttons (0-9): Directly select channels or input numerical values.
- VOL +/-: Adjusts the volume level.
- CH +/-: Changes the TV channel.
- Muting: Mutes or unmutes the TV audio.
- ACTION MENU: Displays a context-sensitive menu for current content.
- Navigation Pad (Up, Down, Left, Right, Enter): Used to navigate menus and select options.
- BACK: Returns to the previous screen or menu.
- HOME: Accesses the TV's Home screen or Smart TV interface.
- DISCOVER: Opens the Discover menu for content recommendations.
- GUIDE: Displays the electronic program guide (EPG).
- Netflix: Direct access button to launch the Netflix application.
- Playback Controls (Play, Pause, Stop, Prev, Next, Wide, Football): Control media playback functions.
- AUDIO: Changes audio tracks or modes.
- SUBTITLE CC: Toggles subtitles or closed captions.
- Colored Buttons (Yellow, Blue, Red, Green): Functionality varies depending on the TV model and current screen.
Note: Some advanced functions or specific buttons may not be supported by all Sony TV models. Refer to your TV's original manual for specific feature compatibility.

Figure 3: The remote control in use, highlighting its comfortable grip and accessible buttons.
4. Maintenance
- Battery Replacement: Replace batteries when the remote's response becomes sluggish or stops working. Always use new AAA alkaline batteries. Do not mix old and new batteries, or different types of batteries.
- Cleaning: Wipe the remote control with a soft, dry cloth. For stubborn dirt, slightly dampen the cloth with water. Do not use abrasive cleaners, alcohol, or chemical solvents, as these can damage the remote's surface or internal components.
- Storage: Store the remote in a cool, dry place away from direct sunlight, extreme temperatures, and high humidity. If the remote will not be used for an extended period, remove the batteries to prevent leakage.
5. Troubleshooting
- Remote is not responding:
- Ensure batteries are inserted correctly with the correct polarity.
- Replace old batteries with new AAA alkaline batteries.
- Check for any obstructions between the remote and the TV's infrared sensor.
- Ensure you are pointing the remote directly at the TV.
- Certain buttons do not work:
- Some buttons may be specific to certain TV models or functions (e.g., Smart TV features, specific input types). Verify if the function is supported by your TV model.
- Clean the remote's surface and ensure no debris is stuck under the buttons.
- Intermittent response:
- This often indicates low battery power. Replace the batteries.
- Ensure there are no strong light sources (like direct sunlight or bright fluorescent lights) interfering with the remote's signal.
6. Specifications
| Model Number | SMTB-RMT-TX100U |
| Brand | Smartby |
| Compatible Devices | Sony LCD, LED, HDTV, Smart Bravia TVs |
| Power Source | 2 x AAA Alkaline Batteries (not included) |
| Product Dimensions | 8 x 2 x 0.7 inches |
| Item Weight | 2.89 ounces |
| Color | Black |
| Special Feature | Universal, No Setup Required |
7. Warranty and Support
For warranty information or technical support regarding your Smartby RMT-TX100U Universal Remote Control, please refer to the product packaging or contact the manufacturer directly. Contact details for Smartby Factory can typically be found on their official website or through the retailer where the product was purchased.
It is recommended to retain your purchase receipt as proof of purchase for any warranty claims.
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