Flysky KY-MiniZ RF3 AFHDS3 Mini Receiver Instruction Manual

1. Introduction

This manual provides detailed instructions for the installation, operation, and maintenance of the Flysky KY-MiniZ RF3 AFHDS3 Mini Receiver. This receiver is designed for use with FS Noble NB4 MiniZ EVO RC Car and Truck models, utilizing the AFHDS 3 protocol for reliable 2.4GHz communication.

Please read this manual thoroughly before using the product to ensure proper function and safety.

2. Product Overview

The Flysky KY-MiniZ RF3 is a compact and lightweight mini receiver, engineered for high performance in RC applications. It features a single antenna design and supports online firmware updates.

Figure 1: Front view of the Flysky KY-MiniZ RF3 AFHDS3 Mini Receiver, showing the main chip and antenna connection.

Figure 2: Bottom view of the receiver, highlighting the 'BIND' button and connection points.

3. Specifications

Figure 3: Dimensions of the KY-MiniZ RF3 receiver.

4. Setup

4.1 Installation

1. Mounting: Securely mount the receiver in your RC vehicle, ensuring it is protected from vibrations and moisture. Its compact size (20x14x3.5mm) allows for flexible placement.
2. Antenna Placement: Position the single antenna away from metal objects and other electronic components to maximize signal reception. Ensure the antenna is not bent sharply or kinked.
3. Power Connection: Connect the receiver to a stable DC 3.3V ± 0.1V power source. Incorrect voltage can damage the receiver.

4.2 Binding Process

To establish communication between your Flysky Noble NB4 transmitter and the KY-MiniZ RF3 receiver, follow these binding steps:

1. Ensure your transmitter is powered off.
2. Connect power to the receiver while holding down the 'BIND' button (refer to Figure 2 for location). The receiver's indicator light should start flashing rapidly, indicating it is in binding mode.
3. Power on your Flysky Noble NB4 transmitter and navigate to the binding menu.
4. Initiate the binding process on the transmitter.
5. Once binding is successful, the receiver's indicator light will become solid.
6. Power off both the receiver and transmitter, then power them on normally to confirm the connection.

5. Operating Instructions

Once the receiver is successfully bound to your transmitter, it will continuously receive control signals. The AFHDS 3 protocol ensures a stable and responsive connection.

• Range: The receiver offers a reliable operating distance of over 50 meters in open, interference-free environments, with the antenna positioned at least 1 meter from the ground.
• Online Update: The receiver supports online firmware updates. Refer to the Flysky official website or your transmitter's manual for instructions on how to perform firmware updates. Keeping the firmware updated ensures optimal performance and access to new features.

6. Maintenance

Proper maintenance ensures the longevity and reliable performance of your KY-MiniZ RF3 receiver.

• Environmental Conditions: Operate and store the receiver within the specified temperature range of 10°C to +60°C and humidity limit of 20% to 95%. Avoid extreme temperatures and high humidity.
• Cleaning: Keep the receiver clean and free from dust, dirt, and moisture. Use a soft, dry cloth for cleaning. Do not use solvents or harsh chemicals.
• Physical Protection: Protect the receiver from physical impact and excessive vibration. Ensure all connections are secure.
• Antenna Care: Regularly inspect the antenna for any damage. A damaged antenna can significantly reduce range and signal quality.

7. Troubleshooting

If you encounter issues with your KY-MiniZ RF3 receiver, consider the following troubleshooting steps:

• Receiver Not Binding:
  • Ensure the receiver is receiving adequate power (DC 3.3V ± 0.1V).
  • Verify that the 'BIND' button is pressed correctly during power-up.
  • Check that your transmitter is set to the correct protocol (AFHDS 3) and is in binding mode.
  • Move the transmitter closer to the receiver during the binding process.
• Loss of Signal/Reduced Range:
  • Inspect the antenna for damage or improper placement. Ensure it is not obstructed by metal parts.
  • Check for sources of 2.4GHz interference in the operating environment.
  • Ensure the receiver is securely connected to its power source.
  • Verify that the transmitter's battery is fully charged.
• No Response from RC Vehicle:
  • Confirm that the receiver is successfully bound to the transmitter (solid indicator light).
  • Check all connections between the receiver and other components (e.g., ESC, servos).
  • Ensure the RC vehicle's power system is functioning correctly.

8. Warranty and Support

For warranty information and technical support, please refer to the official Flysky website or contact your authorized Flysky dealer. Keep your purchase receipt as proof of purchase for any warranty claims.