Ajazz QS87 Mechanical Keyboard User Manual

1. Introduction

The Ajazz QS87 is a versatile mechanical keyboard designed for various applications, including desktop, laptop, and tablet use. It features tri-mode connectivity (Wired, 2.4G Wireless, and Bluetooth), an 88-key layout, and a rapidly detachable aluminum alloy construction. This manual provides detailed instructions for setting up, operating, and maintaining your QS87 keyboard to ensure optimal performance and longevity.

Figure 1: Ajazz QS87 Mechanical Keyboard in various color options.

2. Safety Information

• Keep the keyboard away from liquids and excessive moisture to prevent damage.
• Avoid exposing the keyboard to extreme temperatures or direct sunlight.
• Do not attempt to disassemble or modify the keyboard beyond what is described in this manual. This may void your warranty and cause damage.
• Use only the provided USB cable for charging and wired connection.
• Keep out of reach of children.

3. Package Contents

Please check the package for the following items:

• Ajazz QS87 Mechanical Keyboard
• USB Data Cable
• Key Puller
• Switch Puller (Axis Puller)
• User Manual (this document)
• Adapter (if included with specific model)
• Heaven and Earth Cover Packaging

4. Product Overview

4.1 Key Features

• Tri-Mode Connectivity: Supports Wired (USB), 2.4G Wireless, and Bluetooth connections.
• 88-Key Layout: Compact yet functional layout.
• Mechanical Switches: Provides tactile feedback and durability. Specific switch types vary by model (e.g., Sea salt axis, Maillard axis, Matcha Latte, TTC Flame Red V2).
• Rapidly Detachable Aluminium Alloy: Durable and customizable construction.
• Gasket Structure: Enhances typing feel and sound.
• PBT Keycaps: High-quality keycaps for durability and feel.
• Backlight Options: Available with No light or RGB backlight depending on the model.
• Battery: 4000mAh or 8000mAh battery for wireless use, depending on the model.

4.2 Keyboard Layout and Components

The QS87 keyboard features a standard 88-key layout. Specific visual details may vary by model (Lite, Standard, Upgrades, Plus).

Figure 2: Ajazz QS87 White Plus Keyboard (example layout).

Figure 3: Close-up view of QS87 keyboard details, including optional screen.

5. Setup

5.1 Wired Connection

1. Connect the provided USB cable to the keyboard's USB-C port.
2. Plug the other end of the USB cable into an available USB port on your computer.
3. The keyboard will be automatically recognized and ready for use.

5.2 2.4G Wireless Connection

1. Locate the 2.4G USB receiver (dongle) in the keyboard packaging.
2. Plug the 2.4G USB receiver into an available USB port on your computer.
3. Switch the keyboard's mode selector (usually on the back or side) to 2.4G wireless mode.
4. The keyboard should automatically connect to the receiver.

5.3 Bluetooth Connection

1. Switch the keyboard's mode selector to Bluetooth mode.
2. On your device (computer, tablet, phone), open Bluetooth settings.
3. Search for new devices. The keyboard should appear as "Ajazz QS87" or similar.
4. Select the keyboard to pair. Follow any on-screen prompts to complete the pairing process.
5. The keyboard may support multiple Bluetooth profiles. Refer to the keyboard's specific function keys (e.g., Fn+1, Fn+2, Fn+3) to switch between paired devices.

5.4 Charging the Battery

To charge the keyboard, connect it to a USB power source using the provided USB cable. The battery indicator (if present) will show charging status. A full charge can take several hours. The keyboard can be used in wired mode while charging.

6. Operating Instructions

6.1 Function Keys (Fn Combinations)

The QS87 keyboard utilizes a Function (Fn) key to access secondary key functions. Common Fn combinations include:

• Fn + F1-F12: Multimedia controls (play/pause, volume, etc.), application shortcuts.
• Fn + Backlight Key: Adjust backlight brightness or change lighting effects (for RGB models).
• Fn + 1/2/3: Switch between Bluetooth profiles.
• Fn + Q/W/E: Switch between 2.4G and Bluetooth modes (specific key may vary).

Refer to the keycap legends for specific functions on your model.

6.2 Backlight Control (RGB Models Only)

For models equipped with RGB backlighting, use the designated Fn key combinations to:

• Increase/decrease brightness.
• Change lighting patterns/effects.
• Adjust lighting speed or direction.

Models like the '87 Youth Lite' do not feature backlighting.

7. Maintenance

7.1 Cleaning

• Use a soft, dry cloth to wipe the keyboard surface.
• For stubborn dirt, slightly dampen the cloth with water or a mild cleaning solution (avoid harsh chemicals).
• Use compressed air to remove dust and debris from between keycaps.

7.2 Keycap and Switch Removal

The QS87 keyboard is designed for easy customization. Use the provided key puller and switch puller for safe removal:

• Keycap Removal: Gently attach the key puller to the keycap and pull straight up.
• Switch Removal: After removing the keycap, use the switch puller to grasp the clips on the top and bottom of the switch, then pull straight up. Ensure the keyboard is disconnected before removing switches.
• When re-installing, align the keycap/switch correctly and press down firmly until it clicks into place.

Figure 4: Exposed mechanical switches, ready for removal or replacement.

8. Troubleshooting

• Keyboard not responding:
  • Ensure the USB cable is securely connected in wired mode.
  • Check if the 2.4G receiver is properly plugged in and the keyboard is in 2.4G mode.
  • For Bluetooth, ensure the keyboard is paired and selected in your device's Bluetooth settings. Try re-pairing.
  • Check the battery level and charge the keyboard if necessary.
• Keys not registering:
  • Remove the keycap and switch for the affected key. Check for any debris or damage.
  • Re-seat the switch firmly. If the issue persists, the switch may need replacement.
• Backlight not working (RGB models):
  • Ensure the backlight is turned on using Fn key combinations.
  • Adjust brightness levels.
  • Confirm your specific model supports backlighting.
• Intermittent wireless connection:
  • Move the keyboard closer to the receiver/device.
  • Avoid interference from other wireless devices.
  • Ensure the keyboard battery is sufficiently charged.

9. Specifications

Figure 5: Detailed specifications for various QS87 models.

• Keyboard Standard: 88 Keys
• Operation Style: Mechanical
• Interface Type: USB
• Application: Desktop, Laptop, Number, Tablet
• Language: English
• Origin: Mainland China

10. User Tips

• For optimal wireless performance, keep the 2.4G receiver or Bluetooth device within a reasonable range and clear of obstructions.
• Experiment with different keycap and switch combinations if you have a hot-swappable model to find your preferred typing feel.
• Regularly clean your keyboard to prevent dust and debris from affecting key performance.

11. Warranty and Support

For warranty information, technical support, or service inquiries, please contact the seller or manufacturer directly. Keep your purchase receipt as proof of purchase.