1. Introduction
This manual provides detailed instructions for the installation, operation, and maintenance of your J-LCD KING-METER Electric Bike Display. The J-LCD is an intelligent LCD display designed for electric bicycles, compatible with 24V, 36V, and 48V power systems. It provides essential ride data and control functions to enhance your e-biking experience.
Figure 1: J-LCD KING-METER Electric Bike Display and Control Button
2. Safety Information
- Always ensure the display and all connections are securely fastened before riding.
- Avoid exposing the display to extreme temperatures or direct sunlight for prolonged periods.
- Do not attempt to open or modify the display unit, as this may void the warranty and cause damage.
- Keep the display clean and dry. Avoid using harsh chemicals for cleaning.
- In case of any malfunction, consult the troubleshooting section or contact customer support.
Warning: Please mind potential fire risk and strictly follow the instruction manual for charging and storage of your e-bike battery, as this display connects to the e-bike's power system.
3. Product Overview
The J-LCD display features a clear screen for vital information and a wired control button for easy interaction while riding. It is designed to be waterproof for reliable performance in various weather conditions.
Components:
- J-LCD Display Unit
- Wired Control Button (with 'M', Up, and Down buttons)
- Mounting Bracket
- 5-Pin Connector Cable
4. Specifications
| Feature | Specification |
|---|---|
| Model | J-LCD |
| Type | Electric Bike Display |
| Power Supply | 24V / 36V / 48V |
| Rated Working Current | 10mA |
| Maximum Working Current | 30mA |
| Off-state Leakage Current | <1μA |
| Working Temperature | -20℃ to 60℃ |
| Storage Temperature | -30℃ to 70℃ |
| Origin | Mainland China |
| Approx. Package Dimensions (L x W x H) | 10cm x 8cm x 6cm |
| Approx. Package Weight | 0.125 kg |
5. Installation and Setup
Important Note: This product is custom-made. Please contact the seller immediately after placing your order to provide your electric bicycle's specific information for accurate matching and configuration. Failure to do so may result in the product being shipped with regular specifications.
Installation Steps:
- Mount the Display: Securely attach the J-LCD display unit to your e-bike's handlebar using the provided mounting bracket. Ensure it is positioned for optimal visibility and does not obstruct your view or controls.
- Mount the Control Button: Attach the wired control button to a convenient location on your handlebar, typically near your thumb for easy access.
- Connect the Cables: Carefully connect the 5-pin connector cable from the display to the corresponding port on your e-bike's controller or wiring harness. Ensure the connection is firm and waterproof.
- Route Cables: Neatly route and secure all cables to prevent them from interfering with steering or moving parts, and to protect them from damage.
- Initial Power-On: After installation, power on your e-bike. The display should light up and show initial information. If not, double-check all connections.
6. Operation
The J-LCD display provides real-time information and allows you to control various e-bike functions using the wired control button.
Control Button Functions:
- 'M' Button (Mode/Power):
- Press and hold to power the display ON/OFF.
- Short press to cycle through different display modes (e.g., Trip Distance, Odometer, Max Speed, Average Speed).
- Up Arrow Button:
- Increases the pedal assist level (PAS).
- Navigates up in menu settings.
- Down Arrow Button:
- Decreases the pedal assist level (PAS).
- Navigates down in menu settings.
Displayed Information (may vary based on e-bike controller):
- Current Speed
- Battery Level Indicator
- Pedal Assist System (PAS) Level
- Trip Distance
- Odometer
- Error Codes (if any)
7. Maintenance
- Cleaning: Wipe the display screen and casing with a soft, damp cloth. Do not use abrasive cleaners or solvents.
- Inspection: Periodically check all cable connections for tightness and signs of wear or damage. Ensure the mounting bracket is secure.
- Storage: When not in use for extended periods, store the e-bike (and thus the display) in a cool, dry place, away from direct sunlight and extreme temperatures.
8. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Display does not power on | Loose cable connection, low battery, faulty display/controller | Check all 5-pin connections. Ensure e-bike battery is charged. If problem persists, contact support. |
| No speed reading | Speed sensor issue, loose connection | Check speed sensor and its connection to the controller. |
| Buttons unresponsive | Control button cable issue, internal fault | Check the control button cable connection. Restart the display. If unresponsive, contact support. |
| Display shows error code | System malfunction | Refer to your e-bike's controller manual for specific error code meanings. Contact support if needed. |
9. User Tips
- Visibility: Adjust the display angle to minimize glare and ensure clear visibility of information while riding.
- Battery Management: Pay attention to the battery level indicator to plan your rides and avoid unexpected power loss.
- Customization: If your e-bike controller supports it, explore advanced settings through the display to customize parameters like wheel size or speed limits (consult your e-bike manual).
- Waterproof Care: While the display is waterproof, avoid submerging it or exposing it to high-pressure water jets.
10. Support
For any questions, technical assistance, or issues with your J-LCD KING-METER display, please contact the seller or manufacturer directly. When contacting support, please be prepared to provide your order number and, if applicable, images or videos of the issue.
The seller aims to provide prompt assistance and resolve any problems you may encounter.
