1. Introduction
The HH678K-2.4G is a remote control receiver circuit and main board controller designed for use with children's electric ride-on vehicles. It facilitates wireless control of the vehicle's functions, enhancing the play experience. This product is intended for users aged 12 years and older.
2. Package Contents
Please check the package contents upon receipt to ensure all items are present and undamaged. The typical package includes:
- HH678K-2.4G Receiver Circuit Main Board Controller
- Remote Control (RC1 or RC2, depending on selection)
Figure 1: Overview of the HH678K-2.4G remote control and receiver circuit board.
Figure 2: HH678K-2.4G receiver board with both remote control types (RC1 and RC2).
3. Specifications
| Feature | Specification |
|---|---|
| Model Number | HH678K-2.4G |
| Item Type | Children's Electric Vehicle Accessories |
| Material | Plastic |
| Gender | Unisex |
| Recommended Age | 12+ years |
| Operating Voltage | DC12V |
| Maximum Current (I(MAX)) | 20A |
| Package Dimensions (L x W x H) | 11 cm x 11 cm x 11 cm |
| Package Weight | 0.25 kg |
Figure 3: Side view of the HH678K-2.4G receiver circuit board, displaying voltage and current specifications.
4. Installation and Setup
Before installation, ensure the electric vehicle's power is turned off and disconnected from any power source.
- Locate the Existing Controller: Identify the current receiver circuit board in your children's electric vehicle. This is typically found under the seat or hood.
- Disconnect Wiring: Carefully disconnect all wiring from the old controller. Take photos or make notes of the connections if necessary for reference.
- Install HH678K-2.4G Board: Mount the new HH678K-2.4G receiver circuit main board controller in the same location. Ensure it is securely fastened.
- Connect Wiring: Reconnect the vehicle's wiring to the new HH678K-2.4G board. Pay close attention to polarity and ensure all connections are firm. The board has clearly marked ports for power, motors, and other accessories.
- Remote Control Battery Installation: Open the battery compartment of the remote control and insert the required batteries (not included), observing the correct polarity.
- Pairing the Remote Control (if necessary):
- Turn on the electric vehicle.
- Press and hold the pairing button on the remote control (refer to remote control diagram for exact location, usually a small button or combination of buttons).
- The indicator lights on the remote and/or receiver board should flash and then become solid, indicating successful pairing.
- Test Functionality: Before allowing use, perform a full functional test of the vehicle using the remote control to ensure all movements (forward, backward, left, right) and other features work correctly.
Figure 4: Front view of the HH678K-2.4G receiver circuit board, highlighting connection ports.
Figure 5: White remote control (RC1) with hexagonal buttons.
Figure 6: Beige remote control (RC2) with circular buttons.
5. Operating Instructions
Once the receiver circuit is installed and paired with the remote control, you can operate the children's electric vehicle wirelessly.
- Power On: Turn on the main power switch of the electric vehicle.
- Remote Control Activation: Press any button on the remote control to activate it. The indicator lights should confirm it's active and connected.
- Driving Controls:
- Forward/Backward: Use the designated joystick or buttons to move the vehicle forward or backward.
- Turning: Use the steering controls (joystick or buttons) to turn the vehicle left or right.
- Speed Control: If your remote control has speed settings, adjust them as desired.
- Stopping: Release the driving controls or press the designated stop button to bring the vehicle to a halt.
- Power Off: Always turn off the electric vehicle's main power switch and the remote control when not in use to conserve battery life.
6. Care and Maintenance
- Cleaning: Wipe the receiver board and remote control with a dry, soft cloth. Do not use harsh chemicals or abrasive cleaners.
- Storage: Store the product in a cool, dry place away from direct sunlight and extreme temperatures.
- Battery Care: Remove batteries from the remote control if it will not be used for an extended period to prevent leakage.
- Avoid Moisture: Keep the receiver board and remote control away from water and other liquids to prevent damage.
- Regular Inspection: Periodically check all wiring connections for looseness or corrosion.
7. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Vehicle does not respond to remote control | 1. Remote control batteries are low or dead. 2. Remote control is not paired with the receiver. 3. Loose wiring connection. 4. Receiver board malfunction. | 1. Replace remote control batteries. 2. Re-pair the remote control following the instructions in Section 4. 3. Check all wiring connections to the receiver board. 4. Contact customer support if the issue persists after checking other causes. |
| Vehicle moves erratically or intermittently | 1. Weak signal due to distance or interference. 2. Loose wiring connection. 3. Low vehicle battery. | 1. Move closer to the vehicle; avoid areas with strong electromagnetic interference. 2. Check and secure all wiring connections. 3. Ensure the vehicle's battery is fully charged. |
| Indicator lights on remote/receiver not working | 1. Remote control batteries are dead. 2. Receiver board not receiving power. | 1. Replace remote control batteries. 2. Check vehicle's main power and wiring to the receiver board. |
8. User Tips
- Always ensure the remote control and vehicle are turned off when not in use to maximize battery life.
- Keep the remote control within a reasonable range of the vehicle for optimal signal strength.
- When replacing the receiver board, carefully label or photograph existing connections to simplify the installation process.
- Consider using rechargeable batteries for the remote control for convenience and environmental benefits.
9. Warranty and Support
For any issues or questions regarding your HH678K-2.4G remote control receiver circuit, please contact the seller or manufacturer's customer support. Keep your purchase receipt as proof of purchase.
10. Safety Information
⚠ WARNING: This product can expose you to chemicals including phthalates (DEHP), which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
- Always supervise children when they are operating electric vehicles.
- Ensure all electrical connections are secure and insulated to prevent short circuits.
- Do not attempt to modify the receiver board or remote control, as this may void the warranty and create safety hazards.
- Keep small parts away from young children to prevent choking hazards.
