1. Product Overview
The TF191 48V LCD Instrument Display with NFC Card is a high-quality replacement part designed for electric scooters. It features a clear liquid crystal display, integrated throttle control, and NFC card functionality for enhanced security and convenience. This unit is built with durable materials to ensure stable performance and high reliability.
2. Package Contents
- 1 x TF191 48V LCD Instrument Display Unit
- 2 x NFC Cards
3. Specifications
| Feature | Detail |
|---|---|
| Model Number | TF191 (TF191-48V-10in) |
| Voltage | 48V |
| Display Type | LCD (Liquid Crystal Instrument) |
| Connector Type | 6-Pin Male Needles |
| Functionality | Instrument Display, Throttle Control, NFC Card Access |
| Material | High-quality material |
| Dimensions (Approx.) | Length: 11.2 cm (4.41 inches), Height: 13 cm (5.12 inches) |
| Clamp Width (Approx.) | 2.2 cm (0.87 inches) |
| Cable Length (Approx.) | 11 cm (4.33 inches) |
| Weight (Approx.) | 127.4 g |
4. Safety Information
- Always ensure the scooter's power is off before installing or removing the display unit.
- Handle electronic components with care to avoid damage.
- Ensure all connections are secure and properly insulated to prevent short circuits.
- If you are unsure about any installation steps, consult a professional technician.
- Keep NFC cards away from strong magnetic fields to prevent data corruption.
5. Setup and Installation
This display unit is designed for easy replacement of old or damaged units. Follow these general steps for installation:
- Power Off: Ensure your electric scooter is completely powered off and the battery is disconnected if possible.
- Remove Old Display: Carefully detach the old instrument display from the handlebar. Note the routing of the cables and the type of connector.
- Connect New Display: Connect the 6-pin male connector of the new TF191 display unit to the corresponding female connector on your scooter's wiring harness. Ensure a firm and secure connection.
- Mount Display: Mount the new display unit securely onto the handlebar using the integrated clamp. Adjust its position for optimal visibility and ergonomic access to the throttle.
- Secure Cables: Route and secure the cables to prevent them from interfering with steering or moving parts.
- Power On and Test: Reconnect the scooter's battery (if disconnected) and power on the scooter. Verify that the LCD display powers on and functions correctly.
6. Operating Instructions
6.1. Basic Operation
- Power On/Off: Typically, the display powers on with the scooter. Refer to your scooter's main power switch for overall power control.
- Throttle Control: The integrated throttle lever controls the speed of the electric scooter. Gently press down to accelerate and release to decelerate.
- Mode Button (M): Use the 'M' button to cycle through different display modes or settings, such as speed, battery level, trip distance, etc.
6.2. NFC Card Functionality
The NFC cards provide a secure way to activate or deactivate your scooter, depending on your scooter's system integration. To use the NFC function:
- Ensure the scooter is powered on.
- Hold an NFC card near the NFC reader area on the display unit (indicated by the NFC icon).
- The display will respond, typically by unlocking the scooter or confirming activation.
Note: Specific NFC functions may vary based on your scooter's controller and firmware.
7. Maintenance
- Cleaning: Wipe the display screen and unit with a soft, dry cloth. Avoid using abrasive cleaners or solvents.
- Connections: Periodically check the 6-pin connector for any signs of corrosion or loose connections.
- Storage: When not in use for extended periods, store the scooter and display in a dry, cool environment.
- NFC Cards: Keep NFC cards clean and protected from physical damage.
8. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Display does not power on. | Loose connection, scooter not powered on, faulty unit. | Check 6-pin connector. Ensure scooter's main power is on. If problem persists, unit may be faulty. |
| NFC card not recognized. | Card not placed correctly, card damaged, scooter system not configured for NFC. | Ensure card is held directly over the NFC icon. Try the second NFC card. Consult scooter manual for NFC system configuration. |
| Throttle not responding. | Loose connection, internal fault. | Check 6-pin connector. If display is on but throttle doesn't work, the unit may require replacement. |
9. User Tips
- Menu Configuration: For detailed menu configuration options and settings, please refer to the specific user manual for your electric scooter model, as the display's menu functions are often integrated with the scooter's main controller.
- Compatibility: While this display is a standard 48V 6-pin unit, always verify compatibility with your specific electric scooter model before purchase and installation.
10. Warranty and Support
This product is manufactured to high-quality standards. For any issues or support, please contact the seller or your local distributor. Keep your purchase receipt as proof of purchase for any warranty claims.





