1. Introduction and Overview
This manual provides comprehensive instructions for the RMF-TX910U Backlit Smart Voice Commander TV Remote Control. Designed for compatibility with various Sony 4K and 8K HD TV models, this remote offers advanced features including voice control and backlit buttons for enhanced usability in diverse lighting conditions.

Image 1.1: Front view of the RMF-TX910U remote control, showcasing its sleek design and button layout.
2. Product Features
The RMF-TX910U remote control is equipped with several features to enhance your television viewing experience:
- Backlit Buttons: Buttons illuminate automatically when the remote is picked up in the dark, making it easy to use in low-light environments.
- Voice Control: Utilize the built-in microphone for voice commands, allowing for hands-free navigation and search functions. This feature is also known as RMF-TX910U or RMF-TX900U voice control.
- Quick Access Buttons: Dedicated buttons for popular streaming services including YouTube, NETFLIX, Disney+, Prime Video, and Crunchyroll for instant access.
- Remote Finder Function: Compatible with TVs that support finding the remote control using the TV's built-in microphone.
- Ergonomic Design: Designed for comfortable handling and intuitive button placement.
2.1 Compatibility
This remote control is compatible with a wide range of Sony 4K and 8K HD TV models, including but not limited to:
- KD-43X72K, KD-43X73K, KD-43X80K, KD-43X81K, KD-43X82K, KD-43X85K, KD-43X89K
- KD-50X72K, KD-50X73K, KD-50X80K, KD-50X81K, KD-50X82K, KD-50X85K, KD-50X89K
- KD-55X80K, KD-55X80CK, KD-55X81K, KD-55X82K, KD-55X85K, KD-55X89K
- KD-65X80K, KD-65X80CK, KD-65X81K, KD-65X82K, KD-65X85K, KD-65X89K
- KD-75X80K, KD-75X80CK, KD-75X81K, KD-75X82K, KD-75X85K, KD-75X89K
- KD-85X85K, KD-85X89K, KD-43X85TK, KD-50X85TK, KD-55X85TK, KD-65X85TK, KD-75X85TK, KD-85X85TK
- XR-42A90K, XR-48A90K, XR-50X90S, XR-50X92K, XR-50X94S, XR-55A75K, XR-55A80K, XR-55A80CK, XR-55A83K, XR-55A84K, XR-55A95K, XR-55X90K, XR-55X90CK, XR-55X92K, XR-55X93K, XR-55X94K, XR-65A75K, XR-65A80K, XR-65A80CK, XR-65A83K, XR-65A84K, XR-65A95K, XR-65X90K, XR-65X90CK, XR-65X92K, XR-65X93K, XR-65X94K, XR-65X95K, XR-75X90K, XR-75X90CK, XR-75X92K, XR-75X93K, XR-75X94K, XR-75X95K, XR-77A80K, XR-77A80CK, XR-77A83K, XR-77A84K, XR-85X90K, XR-85X90CK, XR-85X95K, XR-75Z9K, XR-85Z9K
- KD-43X75WL, KD-43X80L, KD-50X75WL, KD-50X80L, KD-55X75WL, KD-55X80L, KD-55X85L, KD-65X75WL, KD-65X80L, KD-65X85L, KD-75X75WL, KD-75X80L, KD-75X85L, KD-85X80L, XR-65X90L, XR-65X95L, XR-75X90L, XR-75X95L, XR-85X90L, XR-85X95L, XR-98X90L, XR-55A80L, XR-55A83L, XR-55A84L, XR-55X90L, XR-65A80L, XR-65A83L, XR-65A84L, XR-77A80L, XR-77A83L, XR-77A84L, XR-83A80L, XR-83A84L
3. Setup
3.1 Battery Installation
To begin using your RMF-TX910U remote control, you will need to install two AAA batteries (not included).
- Locate the battery compartment cover on the back of the remote control.
- Slide the cover downwards or press the latch (if present) to open the compartment.
- Insert two AAA batteries, ensuring the positive (+) and negative (-) terminals align correctly with the indicators inside the compartment.
- Slide the battery compartment cover back into place until it clicks securely.

Image 3.1: Back view of the RMF-TX910U remote control, illustrating the battery compartment.
3.2 Initial Pairing (for Voice Control)
For voice control functionality, the remote may need to be paired with your Sony TV. Refer to your TV's user manual for specific pairing instructions. Typically, this involves navigating to the TV's settings menu (e.g., Remote & Accessories or Bluetooth Settings) and following the on-screen prompts to add a new device.
4. Operating Instructions
This section details the functions of the buttons on your RMF-TX910U remote control.

Image 4.1: Detailed diagram illustrating the function of each button on the RMF-TX910U remote control.
- Power Button (⏻): Turns the TV on or switches it to standby/networked standby mode.
- TV Button: Switches to a TV channel or input and displays the TV menu.
- Menu Button: Displays the TV menu.
- MIC Button (🎤): Speak into the microphone to use voice commands. An LED above the microphone indicates activity.
- Quick Settings Button (⚙): Displays quick settings for the TV.
- Input Button: Displays and selects the input source (e.g., HDMI 1, HDMI 2).
- 123 (Control Menu) Button: Displays a menu on the TV to use functions not available as physical buttons on the remote.
- Navigation D-Pad (Up/Down/Left/Right/Enter): Used for on-screen menu navigation and selection.
- BACK Button (↶): Returns to the previous screen or menu.
- HOME Button (⌂): Displays the TV Home Menu.
- Volume +/- Buttons: Adjusts the TV's volume level.
- Google Assistant / Microphone Button: Activates Google Assistant for voice commands and searches.
- Mute Button (🔇): Mutes or unmutes the TV sound.
- CH +/- (Channel) Buttons: Selects the next or previous channel.
- Play / Pause Buttons (▶ / ⏸): Operates media content on the TV and connected BRAVIA Sync-compatible devices.
- Guide Button: Displays the digital program guide of the TV or cable/satellite box.
- App Buttons (Online Service): Dedicated buttons for quick access to YouTube, NETFLIX, Disney+, Prime Video, and Crunchyroll.
5. Maintenance
Proper care and maintenance will extend the life of your remote control.
- Cleaning: Use a soft, dry cloth to clean the remote's surface. Do not use liquid cleaners, sprays, or abrasive materials, as they may damage the remote.
- Battery Replacement: Replace batteries when the remote's performance degrades or if the backlight feature becomes dim. Always replace both batteries at the same time with new ones of the same type (AAA).
- Storage: Store the remote in a cool, dry place away from direct sunlight and extreme temperatures. If the remote will not be used for an extended period, remove the batteries to prevent leakage.
- Avoid Drops: Protect the remote from physical shocks and drops, which can damage internal components.
6. Troubleshooting
If you encounter issues with your RMF-TX910U remote control, try the following troubleshooting steps:
- Remote Not Responding:
- Check if the batteries are inserted correctly with the correct polarity (+/-).
- Replace the batteries with fresh ones.
- Ensure there are no obstructions between the remote control and the TV's infrared receiver.
- Point the remote directly at the TV.
- Voice Control Not Working:
- Ensure the remote is properly paired with your TV (refer to Section 3.2).
- Check your TV's network connection, as voice commands often require internet access.
- Speak clearly and directly into the microphone on the remote.
- Backlight Not Activating:
- Ensure batteries have sufficient power.
- The backlight activates when the remote is picked up or moved in a dark environment. Test in a dimly lit room.
- Buttons Not Functioning Correctly:
- Clean the remote's surface and buttons to remove any dirt or debris that might be obstructing button presses.
7. Specifications
| Specification | Detail |
|---|---|
| Model Number | RMF-TX910U |
| Brand | Generic |
| Connectivity Technology | Infrared |
| Compatible Devices | Television (Sony 4K/8K HD TVs) |
| Max Number of Supported Devices | 1 |
| Special Feature | Ergonomic, Backlit, Voice Control |
| Manufacturer | service_parts |
| Date First Available | June 23, 2023 |
8. Warranty and Support
This product is supplied as a spare part and may not include commercial packaging or a retail box. Specific warranty information from the manufacturer is not provided in the product details.
For any support inquiries, technical assistance, or questions regarding your purchase, please contact the seller directly. The seller for this product is Service_Parts.





