kebidumei K68 Tri-Mode Mechanical Keyboard User Manual

1. Introduction

The kebidumei K68 is a versatile 68-key mechanical keyboard designed for both gaming and productivity. It offers three distinct connection modes: 2.4G wireless, Bluetooth 5.1, and a wired Type-C connection, ensuring compatibility with a wide range of devices. Featuring RGB backlighting, all-key hot-swappable switches, and a durable 3000mAh battery, the K68 provides a customizable and reliable typing experience.

Figure 1: K68 Mechanical Keyboard with included tools.

2. Safety Information

• Keep the keyboard away from liquids and excessive moisture.
• Avoid extreme temperatures.
• Do not attempt to disassemble or repair the keyboard yourself. Refer to qualified personnel for service.
• Use only the provided charging cable or a certified equivalent.
• Keep out of reach of children.

3. Package Contents

Please check the package for the following items:

• K68 Mechanical Keyboard
• USB Type-C Cable
• 2.4G Wireless Receiver
• Keycap Puller
• Switch Puller
• User Manual (this document)

4. Specifications

Figure 2: K68 Mint Green model highlighting key features.

5. Setup

5.1. Wired Connection

1. Locate the USB Type-C port on the keyboard.
2. Connect one end of the provided USB Type-C cable to the keyboard.
3. Connect the other end of the USB cable to an available USB port on your computer.
4. The keyboard will automatically be recognized and ready for use.

5.2. 2.4G Wireless Connection

1. Locate the 2.4G wireless receiver (dongle) in the package.
2. Plug the 2.4G receiver into an available USB port on your computer.
3. On the keyboard, switch the connection mode selector to the '2.4G' position.
4. The keyboard should connect automatically. If not, press and hold the Fn key + the 2.4G mode key (usually indicated by an icon) to initiate pairing.

5.3. Bluetooth Connection

1. On the keyboard, switch the connection mode selector to the 'BT' (Bluetooth) position.
2. On your device (computer, tablet, smartphone), enable Bluetooth and search for new devices.
3. The keyboard should appear as 'K68' or similar in the list of available devices. Select it to pair.
4. If prompted, enter a pairing code on the keyboard and press Enter.
5. The keyboard supports Bluetooth 5.1 for stable connection.

Figure 3: Illustrates the three connection modes.

6. Operating Instructions

6.1. Key Functions

The K68 keyboard features a compact 68-key layout. Many functions are accessed via the Fn (Function) key combined with other keys.

• Fn + [Key]: Specific multimedia or system functions may be assigned to various keys when pressed with Fn. Refer to the keycap legends for specific combinations.
• Full Key Rollover: The keyboard supports N-key rollover, meaning all key presses are registered simultaneously, preventing ghosting or missed inputs during fast typing or gaming.

6.2. Backlight Control

The K68 features 20 RGB lighting modes. Use the following combinations to control the backlight:

• Fn + \|: Cycle through different RGB lighting effects.
• Fn + ↑ / ↓: Adjust backlight brightness.
• Fn + ← / →: Adjust backlight speed or direction (depending on the effect).

6.3. Hot-Swapping Switches

The K68 keyboard is all-key hot-swappable, allowing you to change mechanical switches without soldering. This enables customization of typing feel and sound.

1. Remove Keycap: Use the included keycap puller to gently remove the desired keycap.
2. Remove Switch: Use the included switch puller to carefully grip the top and bottom clips of the switch and pull it straight up.
3. Insert New Switch: Align the pins of the new switch with the holes on the PCB. Gently push the switch down until it clicks into place. Ensure the pins are not bent.
4. Replace Keycap: Place the keycap back onto the new switch stem.

Figure 4: Hot-swappable PCB design.

Figure 5: Diagram of a mechanical switch.

6.4. Charging the Battery

The keyboard is equipped with a 3000mAh rechargeable battery. Connect the USB Type-C cable to the keyboard and a power source (computer USB port or USB wall adapter) to charge. An indicator light may show charging status.

Figure 6: 3000mAh battery capacity.

7. Maintenance

7.1. Cleaning the Keyboard

• Keycaps: Use the keycap puller to remove keycaps. Clean them with a mild soap solution and a soft cloth, then dry thoroughly before reattaching.
• Keyboard Body: Use a soft, dry cloth to wipe the surface. For dust and debris between keys, use compressed air.
• Switches: If switches feel gritty, they can be removed and cleaned or lubricated (for advanced users).

7.2. Battery Care

• Avoid fully discharging the battery frequently.
• Store the keyboard in a cool, dry place if not used for extended periods.
• Charge the keyboard regularly to maintain battery health.

8. Troubleshooting

8.1. Keyboard Not Responding

• Wired Mode: Ensure the USB-C cable is securely connected to both the keyboard and the computer. Try a different USB port or cable.
• 2.4G Wireless Mode: Ensure the 2.4G receiver is plugged in and the keyboard is switched to 2.4G mode. Try re-pairing (Fn + 2.4G mode key).
• Bluetooth Mode: Ensure Bluetooth is enabled on your device and the keyboard is in Bluetooth mode. Re-pair the device if necessary.
• Battery: Check if the battery is charged. Connect the keyboard via USB-C to charge.

8.2. Keys Not Registering or Double-Typing

• Dust/Debris: Clean under the keycaps and around the switches using compressed air.
• Faulty Switch: If a specific key is consistently problematic, the hot-swappable switch might be faulty. Replace it with a new one using the switch puller.

8.3. Backlight Issues

• Brightness: Ensure the brightness is not set to minimum (Fn + ↑).
• Mode: Cycle through different lighting modes (Fn + \|) to see if the issue persists across all modes.
• Software: If applicable, check for any companion software settings that might be overriding keyboard controls.

9. User Tips

• Experiment with Switches: Take advantage of the hot-swappable design to try different mechanical switches (e.g., linear, tactile, clicky) to find your preferred typing feel.
• Customize RGB: Explore all 20 lighting modes and adjust brightness and speed to match your setup or mood.
• Firmware Updates: Periodically check the manufacturer's website for any available firmware updates to ensure optimal performance and new features.
• Battery Management: For prolonged wireless use, consider turning off RGB lighting when not needed to conserve battery life.

10. Warranty and Support

This product comes with a standard manufacturer's warranty. For detailed warranty information, technical support, or service inquiries, please refer to the official kebidumei support channels or your point of purchase. Keep your proof of purchase for warranty claims.