1. Introduction
Thank you for choosing the KEY-DISP HK-P1 HK039 Electric Bike LCD Display. This intelligent monitor is designed to provide essential information and control for your 36V or 48V electric bicycle system. Please read this manual thoroughly before installation and operation to ensure proper use and longevity of your device.
2. Safety Information
- Fire Risk: Please be aware of potential fire risks associated with electrical components. Always follow the instruction manual strictly for charging and storage of your e-bike battery and related components.
- Ensure all connections are secure and correctly insulated to prevent short circuits.
- Do not attempt to open or modify the display unit, as this may void the warranty and pose safety hazards.
- Keep the display away from extreme temperatures, direct sunlight, and moisture.
3. Product Overview
The HK-P1 HK039 LCD Display provides a clear interface for monitoring your e-bike's performance. It features a compact design with intuitive buttons for easy control.
Figure 3.1: Front view of the HK-P1 LCD Display with control buttons (+, M, -).
Figure 3.2: Side view showing the display's cable and 5-pin connector.
3.1 Components
- LCD Display Unit
- Integrated Control Buttons (+, M, -)
- Connection Cable with 5-pin Connector
4. Specifications
| Feature | Detail |
|---|---|
| Product Name | E-bike Intelligent LCD Display |
| Model | HK-P1 |
| Brand | KEY-DISP |
| Type | Display |
| Power Supply | 24V / 36V / 48V |
| Rated Working Current | 10mA |
| Maximum Working Current | 30mA |
| Off-state Leakage Current | <1μA |
| Working Temperature | -20℃ to 60℃ (-4°F to 140°F) |
| Storage Temperature | -30℃ to 70℃ (-22°F to 158°F) |
| Origin | Mainland China |
5. Setup and Installation
The HK-P1 HK039 display is designed for straightforward installation on your e-bike handlebars.
5.1 Mounting the Display
- Choose a suitable position on your e-bike handlebars that allows for clear visibility and easy access to the control buttons.
- Secure the display bracket to the handlebars using appropriate tools. Ensure it is tight enough to prevent rotation but not overtightened to avoid damage.
- Slide the HK-P1 display unit onto the mounted bracket until it clicks securely into place.
Figure 5.1: Rear view of the display, indicating the mounting area.
5.2 Electrical Connection
The display connects to your e-bike controller via a dedicated 5-pin connector.
- Locate the corresponding connector on your e-bike's controller or wiring harness.
- Carefully align the 5-pin connector from the display cable with the port on your e-bike system.
- Push the connectors firmly together until they are fully seated. Ensure the connection is secure and waterproof if applicable.
- Route the cable neatly along your e-bike frame, securing it with cable ties to prevent snagging or damage.
Note: If you are unsure about the wiring, consult a professional e-bike technician or refer to your e-bike's main wiring diagram. Incorrect wiring can damage the display or other e-bike components.
6. Operating Instructions
Once installed and connected, the HK-P1 display is ready for use.
6.1 Powering On/Off
- To power on the display, press and hold the M button for a few seconds.
- To power off the display, press and hold the M button again until the screen turns off.
6.2 Display Functions
The display typically shows information such as:
- Current Speed
- Battery Level Indicator
- Assist Level (PAS)
- Trip Distance / Odometer
- Error Codes (if applicable)
6.3 Button Functions
- '+' Button: Typically used to increase the pedal assist level (PAS), navigate menus upwards, or increase values.
- '-' Button: Typically used to decrease the pedal assist level (PAS), navigate menus downwards, or decrease values.
- 'M' Button (Mode/Power): Used to power the display on/off, switch between different display modes (e.g., Trip, ODO, Max Speed, Avg Speed), or confirm selections in settings.
Specific button combinations for advanced settings (e.g., wheel size, speed limit) may vary depending on your e-bike controller. Refer to your e-bike's main manual for detailed programming instructions.
7. Maintenance
- Cleaning: Wipe the display screen and body with a soft, damp cloth. Do not use abrasive cleaners, solvents, or spray water directly onto the unit.
- Storage: When not in use for extended periods, store the e-bike and display in a dry, temperate environment.
- Cable Inspection: Periodically check the display cable and connector for any signs of wear, cuts, or damage. Ensure connections remain secure.
8. Troubleshooting
8.1 Common Issues
- Display Not Powering On:
- Check if the e-bike battery is charged and turned on.
- Ensure all electrical connections, especially the 5-pin connector to the controller, are secure.
- Inspect the display cable for any visible damage.
- Incorrect Speed/Distance Readings:
- Verify that the wheel size setting in the display's parameters (if accessible) matches your e-bike's wheel size.
- Check the speed sensor and its magnet for proper alignment and function.
- Buttons Not Responding:
- Ensure the display is powered on.
- Clean around the buttons to remove any dirt or debris that might be obstructing them.
- If the issue persists, there might be an internal fault.
8.2 Defective Products
If you receive a defective product, do not sign the shipping bill if the product is visibly damaged upon delivery. This is the shipping company's responsibility. Please take photos of the defective product and contact the seller immediately for assistance with refunds or replacements.
9. User Tips
- Customization: As this is a customized product, ensure you provide all necessary information to the seller upon ordering to ensure compatibility with your specific e-bike system (e.g., controller type, battery voltage).
- Compatibility: Always confirm the display's voltage (24V/36V/48V) matches your e-bike's battery and controller system before purchase and installation.
- Firmware Updates: While not typically user-updatable, be aware that some e-bike systems may require specific firmware versions for optimal display functionality.
10. Warranty and Support
For any questions, problems, or support needs, please contact the seller directly. They are committed to assisting you and resolving any issues you may encounter with the product.
If you are not satisfied with the product upon receipt, you may discuss options with the seller. Returned items must remain in the same condition as received.
