YUNZII AL66 Wireless Mechanical Keyboard User Manual

1. Introduction

This manual provides detailed instructions for the setup, operation, and maintenance of your YUNZII AL66 Wireless Mechanical Keyboard. The AL66 features a 65% layout with a multi-function knob, full aluminum CNC construction, gasket mount design, hot-swappable switches, and tri-mode connectivity (Bluetooth, 2.4G wireless, and wired USB-C).

Image 1.1: YUNZII AL66 Wireless Mechanical Keyboard overview.

2. What's in the Box

Upon unboxing your YUNZII AL66 keyboard, please ensure all the following items are present:

• YUNZII AL66 Wireless Mechanical Keyboard
• Dust cover
• Extra 6 keycaps and 2 switches
• Keycap Puller
• USB Cable (Type-C)
• User Manual (this document)

Image 2.1: Included accessories with the YUNZII AL66 keyboard.

3. Product Features

• Aluminum Gasket Mounted Design: The AL66 features a 66-key layout with a knob, crafted from CNC machined aluminum. Its gasket mount structure provides a comfortable typing experience. The anodic oxidation finish enhances durability and corrosion resistance.
• 65% Layout with Multi-function Knob: This compact layout includes essential function keys, arrows, and numerals, while the metal knob allows adjustment of RGB modes, brightness, and volume.
• Tri-Mode Wireless Connectivity: Supports Bluetooth, 2.4G wireless, and wired USB-C connections. It can connect to up to 4 devices simultaneously and switch between them easily. Compatible with Windows, Mac, tablets, laptops, PCs, and smartphones. Features a 4600 mAh battery for up to 90 hours of typing.
• Hot-Swappable Linear Milk Switches: Equipped with pre-lubed Milk switches and stabilizers, the keyboard offers a pleasant typing feel. The hot-swappable design supports 3-pin or 5-pin mechanical switches for customization. Includes Poron sandwich foam, Poron socket foam, and PET sound pads for enhanced acoustics.
• RGB & South-facing LED: Features 14 default RGB effects and 8 backlight colors. South-facing LEDs provide better illumination. N-key rollover ensures simultaneous key presses are registered, beneficial for hotkeys and gaming. Customizable software is available for Windows systems.

Image 3.1: Key features of the YUNZII AL66 keyboard.

Image 3.2: Detailed view of the keyboard's gasket structure components.

4. Setup

4.1. System Compatibility Switch

Locate the system switch on the side of the keyboard. Toggle it to the appropriate position for your operating system (Mac or Win).

Image 4.1: Side view of the keyboard showing connectivity and system switches.

4.2. Connection Modes

The YUNZII AL66 supports three connection modes: Bluetooth, 2.4G Wireless, and Wired (USB-C). Use the mode switch on the side of the keyboard to select your desired connection type.

4.2.1. Bluetooth Mode

1. Switch the mode button on the side of the keyboard to the "BT" position.
2. Short press Fn+Q, Fn+W, or Fn+E to select a Bluetooth channel. The indicator LED will flash slowly (Blue/Pink/Yellow).
3. To enter pairing mode, long press Fn+Q, Fn+W, or Fn+E for 3-5 seconds. The indicator LED will flash quickly.
4. On your device (computer, tablet, smartphone), navigate to Bluetooth settings and select "AL66 3.0" or "AL66 5.0" to pair.
5. Once successfully paired, the indicator LED will stay on.

4.2.2. 2.4G Wireless Mode

1. Switch the mode button on the side of the keyboard to the "2.4G" position.
2. Locate the 2.4G USB dongle, usually stored in a slot on the top edge of the keyboard.
3. Plug the 2.4G USB dongle into an available USB port on your computer.
4. Long press Fn+R to enter 2.4G Wireless pairing mode. The indicator LED will flash quickly.
5. Once successfully connected, the indicator LED will stay on.

4.2.3. Wired Mode

1. Switch the mode button on the side of the keyboard to the "Line" position.
2. Connect the provided USB-C cable to the keyboard's USB-C port.
3. Connect the other end of the USB-C cable to an available USB port on your computer.
4. The keyboard will automatically be recognized and ready for use.

5. Operating Instructions

5.1. Multi-function Knob Control

The knob on the top right of the keyboard serves multiple functions:

• Rotate Left/Right: Decreases/increases volume or RGB brightness, depending on the selected mode.
• Long Press (5 seconds): Changes the knob control mode (e.g., from volume control to RGB mode control).

Image 5.1: Multi-function knob usage.

5.2. RGB Backlighting

The AL66 features customizable RGB backlighting with 14 default effects and 8 backlight colors. The south-facing LEDs enhance illumination.

• Use the knob to adjust RGB brightness and cycle through modes.
• For advanced customization, software is available for Windows systems only.

Image 5.2: Tri-mode connectivity and RGB lighting.

5.3. Key Functions

• N-Key Rollover: The keyboard supports N-key rollover, allowing multiple keys to be pressed simultaneously without conflict.
• Fn Key Combinations: The Fn key can be combined with other keys for additional functions. Refer to the keyboard's keycap legends for specific combinations (e.g., Fn+Q/W/E for Bluetooth channels, Fn+R for 2.4G pairing).
• Unlocking Number Keys: If number keys stop working, double-tap the Fn key to toggle between number keys and F1-F12 functions.

Image 5.3: Fn key functionality for number keys.

6. Maintenance

6.1. Hot-Swappable Switches

The YUNZII AL66 features hot-swappable sockets, allowing you to change mechanical switches without soldering.

1. Use the provided switch puller to carefully remove the existing switch. Grip the switch firmly and pull straight up.
2. Align the pins of the new 3-pin or 5-pin mechanical switch with the holes on the PCB.
3. Gently press the new switch into place until it clicks. Ensure it is seated correctly to avoid bent pins.
4. Use the keycap puller to remove and replace keycaps as desired.

Image 6.1: Hot-swappable switch replacement process.

6.2. Cleaning

To maintain your keyboard's performance and appearance:

• Disconnect the keyboard from your device before cleaning.
• Use a keycap puller to remove keycaps for thorough cleaning.
• Use compressed air to remove dust and debris from between the keys.
• Wipe keycaps and the keyboard surface with a soft, damp cloth. Avoid harsh chemicals.

7. Troubleshooting

If you encounter issues with your YUNZII AL66 keyboard, refer to the following common solutions:

• Keyboard not connecting:
  • Ensure the mode switch (Bluetooth, 2.4G, Wired) is set correctly.
  • For Bluetooth, ensure the keyboard is in pairing mode (fast flashing indicator) and selected on your device.
  • For 2.4G, ensure the dongle is securely plugged in and the keyboard is in 2.4G pairing mode (fast flashing indicator).
  • For wired, ensure the USB-C cable is properly connected to both the keyboard and your computer.
  • Check the Mac/Win system switch is in the correct position for your operating system.
• Number keys not working or acting as F-keys:
  • Double-tap the Fn key to toggle between number keys and F1-F12 functions.
• RGB lighting not working or incorrect:
  • Ensure the keyboard is charged or connected via USB-C.
  • Use the multi-function knob to cycle through RGB modes and adjust brightness.
  • If using Windows, check the official YUNZII software for advanced customization options.
• Keys feeling inconsistent or not registering:
  • Carefully remove the keycap and switch using the provided tools.
  • Inspect the switch pins for any bends or damage. Straighten bent pins gently or replace the switch if damaged.
  • Ensure the switch is fully seated in the hot-swappable socket.
• Battery life issues:
  • Ensure the keyboard is fully charged using the USB-C cable.
  • Reduce RGB brightness or turn off RGB lighting to conserve battery.
  • The keyboard has a 4600 mAh battery, providing up to 90 hours of typing.

8. Specifications

9. Warranty and Support

For warranty information, technical support, or further assistance, please contact YUNZII customer service through their official website or the retailer where the product was purchased. Keep your proof of purchase for warranty claims.