ZUOYA GMK87 TKL Mechanical Keyboard Kit User Manual

1. Introduction

This manual provides detailed instructions for the setup, operation, maintenance, and troubleshooting of your ZUOYA GMK87 TKL Mechanical Keyboard Kit. Please read this manual thoroughly before using the product to ensure optimal performance and longevity.

Package Contents

• GMK87 Keyboard Kit (Barebones)
• Keycap Puller
• USB Cable (Type-C)
• User Manual

2. Setup

The GMK87 is a barebones keyboard kit, requiring the installation of switches and keycaps. This section guides you through the assembly process.

2.1 Component Overview

Image: The ZUOYA GMK87 barebones keyboard kit, showing the PCB, stabilizers, and empty switch sockets. This image illustrates the base unit before switches and keycaps are installed.

Image: An exploded diagram of the GMK87 keyboard, detailing internal components such as the top cover, gasket tampons, steel plate, sandwich cotton, lower shaft cushion, PCB, 3000mAh Li-ion battery, 2.4G receiver, lower cover, foot support, and anti-slip foot pads. This view helps in understanding the keyboard's construction.

2.2 Installing Switches and Keycaps

1. Prepare Switches: Ensure your mechanical switches (3-pin or 5-pin compatible) are ready for installation. The GMK87 features a hot-swappable PCB, allowing switch installation without soldering.
2. Align Switches: Carefully align the pins of each switch with the corresponding holes on the PCB. Ensure the switch is oriented correctly, especially for south-facing LEDs.
3. Press Switches: Gently press each switch into its socket until it clicks into place. Avoid excessive force to prevent bending switch pins. If a pin bends, carefully straighten it with tweezers before reattempting.
4. Install Keycaps: Once all switches are installed, use the provided keycap puller or your fingers to firmly press each keycap onto its respective switch stem.

The pre-lubed stabilizers contribute to a smoother typing experience. For optimal performance, ensure all components are securely seated.

3. Operating Instructions

The ZUOYA GMK87 offers versatile connectivity and customization options. This section details how to use its various features.

3.1 Connectivity Modes

The GMK87 supports three connection modes: Bluetooth 5.0, 2.4GHz wireless, and Type-C wired. It is compatible with Windows and Mac operating systems, as well as laptops, tablets, and mobile phones.

Image: A diagram illustrating the three connectivity modes: Bluetooth, 2.4G wireless, and Type-C wired. It shows the keyboard connecting to various devices like tablets, laptops, and smartphones, highlighting its versatility.

Image: Instructions for connecting the GMK87 in triple mode. It shows key combinations for Bluetooth pairing (FN+Q, FN+W, FN+E for three devices) and 2.4GHz wireless (FN+R), along with a switch to toggle to USB wired mode. The image emphasizes the ability to connect up to 4 wireless devices and 1 wired device.

3.1.1 Wired Mode (Type-C)

Connect the provided USB Type-C cable from the keyboard to your device. The keyboard will automatically switch to wired mode. Ensure the mode switch located on the back of the keyboard is set to the wired position (usually indicated by a cable icon or 'USB').

3.1.2 2.4GHz Wireless Mode

1. Locate the 2.4G receiver (USB dongle) in the storage compartment on the back of the keyboard.
2. Plug the 2.4G receiver into an available USB port on your computer.
3. Toggle the mode switch on the back of the keyboard to the 2.4G wireless position (usually indicated by a wireless icon).
4. Press FN + R on the keyboard to activate 2.4GHz pairing. The keyboard should connect automatically.

3.1.3 Bluetooth 5.0 Mode

The GMK87 can pair with up to three Bluetooth devices.

1. Toggle the mode switch on the back of the keyboard to the Bluetooth position (usually indicated by a Bluetooth icon).
2. Press and hold FN + Q, FN + W, or FN + E for 3-5 seconds to enter pairing mode for Bluetooth device 1, 2, or 3, respectively. The indicator light will flash rapidly.
3. On your device (PC, laptop, tablet, phone), search for Bluetooth devices and select "GMK87" (or similar) to connect.
4. Once paired, the indicator light will stop flashing. You can switch between paired Bluetooth devices by pressing FN + Q, FN + W, or FN + E briefly.

3.2 TFT Screen and Multimedia Knob

The GMK87 features a multimedia TFT display and a metal knob for enhanced functionality.

Image: A close-up of the GMK87's TFT screen, showing various display contents such as time, date, week, power level, volume, and temperature. It also indicates that users can switch images on the screen using FN + ENTER and change connection modes by short-pressing a button.

Image: A detailed view of the GMK87's knob and screen area. It highlights the adjustable volume knob and the customizable patterns/motion graphics feature of the screen. The image also notes that VIA programmability works in Type-C wired and 2.4G wireless modes only.

3.2.1 TFT Screen Functions

• Display Content: The screen can show time, date, week, battery level, connection mode, volume, and temperature.
• Custom Images/GIFs: You can customize the display with GIF images or other patterns using the dedicated driver software.
• Switch Display: Press FN + ENTER to cycle through different display contents or custom images.
• Connection Mode Display: The screen indicates the current connection mode (wired, 2.4G, or Bluetooth).

3.2.2 Multimedia Knob Functions

• Volume Control: Rotate the knob clockwise to increase volume, counter-clockwise to decrease volume.
• Mute/Unmute: Press the knob to mute or unmute audio.

3.3 VIA Programmability

The GMK87 supports VIA firmware, allowing extensive customization of key assignments, macros, and lighting effects. VIA programmability functions in Type-C wired and 2.4G wireless modes only.

Image: A visual representation of the VIA software interface, showing how users can remap keys and create macros for the GMK87 keyboard. It highlights the flexibility of customizing the keyboard's layout and functions.

1. Download VIA Software: Visit the official VIA website or ZUOYA's support page to download the latest VIA software.
2. Connect Keyboard: Connect your GMK87 keyboard to your computer via the Type-C cable or 2.4GHz receiver.
3. Launch VIA: Open the VIA application. The software should automatically detect your GMK87 keyboard. If not, ensure the keyboard is in wired or 2.4G mode and try restarting VIA.
4. Customize: Use the VIA interface to remap keys, create complex macro commands, set shortcuts, or adjust lighting effects. Changes are applied in real-time.

3.4 RGB Backlighting

The GMK87 features south-facing LEDs with 16.8 million RGB colors and over 18 preset backlight effects. You can customize lighting further using the VIA software.

• Cycle Effects: Use FN + \| to cycle through preset RGB lighting effects.
• Adjust Brightness: Use FN + ↑ to increase brightness and FN + ↓ to decrease brightness.
• Adjust Speed: Use FN + ← to decrease effect speed and FN + → to increase effect speed.

4. Maintenance

Proper maintenance ensures the longevity and performance of your GMK87 keyboard.

4.1 Cleaning

• Keycaps: Use the provided keycap puller to remove keycaps. Clean them with a mild soap solution and a soft cloth, then rinse and dry thoroughly before reattaching.
• Keyboard Base: Use a soft brush or compressed air to remove dust and debris from between switches. For stubborn dirt, a slightly damp microfiber cloth can be used, ensuring no liquid enters the keyboard.
• Screen: Gently wipe the TFT screen with a dry, soft microfiber cloth. Avoid harsh chemicals or abrasive materials.

4.2 Switch Replacement

Thanks to the hot-swappable PCB, switches can be replaced without soldering.

1. Remove Keycap: Use the keycap puller to carefully remove the keycap from the switch you wish to replace.
2. Remove Switch: Use a switch puller (not included, but commonly available) to gently grip the top and bottom clips of the switch and pull it straight up from the PCB.
3. Install New Switch: Align the pins of the new switch with the holes on the PCB and press it firmly until it clicks into place. Ensure pins are not bent.
4. Reattach Keycap: Place the keycap back onto the new switch.

5. Troubleshooting

If you encounter issues with your GMK87 keyboard, refer to the following common problems and solutions.

5.1 Connectivity Issues

• Keyboard not recognized in wired mode:
  - Ensure the USB Type-C cable is securely connected to both the keyboard and your device.
  - Verify the mode switch on the back of the keyboard is set to the wired (USB) position.
  - Try a different USB port or cable.
• 2.4GHz wireless connection unstable or not connecting:
  - Ensure the 2.4G receiver is securely plugged into a USB port.
  - Verify the mode switch is set to the 2.4G position.
  - Press FN + R to re-initiate pairing.
  - Move the keyboard closer to the receiver to reduce interference.
• Bluetooth device not pairing or disconnecting:
  - Ensure the mode switch is set to the Bluetooth position.
  - Press and hold FN + Q/W/E for 3-5 seconds to enter pairing mode.
  - On your device, forget the keyboard from Bluetooth settings and attempt to pair again.
  - Ensure your device's Bluetooth is enabled and discoverable.
  - Check the keyboard's battery level.

5.2 Key Functionality Issues

• Keys not responding:
  - Check if the switch is properly seated in its socket. Remove the keycap and switch, then re-insert.
  - If a specific key is consistently unresponsive, the switch may be faulty. Replace the switch using the hot-swap feature.
  - Ensure the keyboard is not in a locked or sleep mode.
• Double typing or missed keystrokes:
  - This can sometimes indicate a faulty switch. Try replacing the affected switch.
  - Ensure the keyboard firmware is up to date (check ZUOYA's official website).

5.3 TFT Screen and Knob Issues

• Screen not displaying:
  - Check the keyboard's battery level. Connect via USB-C to charge.
  - Try pressing FN + ENTER to cycle through display modes.
  - Ensure the keyboard's driver software is installed and up to date if using custom GIFs.
• Knob not controlling volume:
  - Ensure the keyboard is properly connected to your device.
  - Check if any software or operating system settings are overriding the volume control.

5.4 VIA Software Recognition

• Keyboard not detected by VIA:
  - Ensure the keyboard is connected via Type-C wired mode or 2.4GHz wireless mode. VIA does not support Bluetooth mode.
  - Close and reopen the VIA application.
  - Restart your computer.
  - Download the latest version of VIA software and the appropriate JSON definition file for the GMK87 from ZUOYA's official website.

6. Specifications

7. Warranty and Support

7.1 Warranty Information

Please refer to the product packaging or the official ZUOYA website for specific warranty terms and conditions. Typically, ZUOYA products come with a limited manufacturer's warranty covering defects in materials and workmanship.

7.2 Customer Support

For technical assistance, troubleshooting, or warranty claims, please contact ZUOYA customer support through their official website or the retailer where you purchased the product. Have your product model (GMK87) and purchase details ready when contacting support.