ZIYOU LANG K87 TKL RGB Backlit Wireless Mechanical Gaming Keyboard User Manual

1. Introduction

Welcome to the ZIYOU LANG K87 TKL RGB Backlit Wireless Mechanical Gaming Keyboard user manual. This guide provides detailed instructions for setting up, operating, and maintaining your new keyboard. The K87 offers versatile connectivity with 2.4GHz wireless, Bluetooth 5.0, and wired USB-C options, alongside vibrant RGB backlighting and hot-swappable switches for a customizable experience.

2. Package Contents

Please verify that all items listed below are included in your package:

• ZIYOU LANG K87 TKL Mechanical Keyboard
• USB-C Coiled Aviation Cable
• 2.4GHz USB Receiver
• 2-in-1 Keycap and Switch Puller
• Extra Switches (Yellow Linear)
• User Manual

3. Product Overview

The ZIYOU LANG K87 features an 87-key Tenkeyless (TKL) layout, designed for a compact footprint while retaining essential keys. It incorporates a gasket-mounted structure and a double-layer sound-absorbing design for an enhanced typing experience.

4. Setup

4.1 Initial Charging

Before first use, it is recommended to fully charge the keyboard. Connect the USB-C end of the coiled cable to the keyboard and the USB-A end to a power source (e.g., computer USB port, wall adapter). The keyboard features a 3000mAh battery. A red light will flash when the battery is low.

4.2 Connectivity Modes

The K87 keyboard supports three connection modes: Wired, 2.4GHz Wireless, and Bluetooth 5.0. You can switch between these modes using the switch located on the back of the keyboard.

4.2.1 Wired Mode

1. Ensure the mode switch on the keyboard is set to 'Wired' or 'USB'.
2. Connect the USB-C end of the coiled cable to the keyboard and the USB-A end to your computer.
3. The keyboard will be recognized automatically by your operating system.

4.2.2 2.4GHz Wireless Mode

1. Plug the 2.4GHz USB receiver into an available USB port on your computer.
2. Set the mode switch on the keyboard to '2.4G'.
3. The keyboard should automatically connect to the receiver. If not, press Fn + R to initiate pairing.

4.2.3 Bluetooth 5.0 Mode

1. Set the mode switch on the keyboard to 'BT'.
2. Press and hold Fn + Q, Fn + W, or Fn + E for 3-5 seconds to enter pairing mode for one of the three available Bluetooth channels. The indicator light will flash rapidly.
3. On your device (PC, laptop, tablet), search for Bluetooth devices and select 'ZIYOU LANG K87' (or similar) to pair.
4. Once paired, the indicator light will stop flashing. You can connect up to three Bluetooth devices and switch between them by pressing Fn + Q/W/E.

5. Operating Instructions

5.1 RGB Backlighting Control

The K87 keyboard features 20 distinct RGB lighting effects with 16 million colors. Use the following key combinations to control the backlighting:

• Fn + Ins: Cycle through various RGB lighting modes.
• Fn + Home: Adjust backlight color (in certain modes).
• Fn + PgUp: Increase backlight brightness.
• Fn + PgDn: Decrease backlight brightness.
• Fn + Arrow Keys: Adjust lighting direction or speed (mode dependent).
• Fn + X: Turn backlight on/off.

5.2 Hot-Swappable Switches

The K87 keyboard is equipped with hot-swappable sockets, allowing you to change mechanical switches without soldering. It supports most 3-pin and 5-pin switches (e.g., Cherry, Gateron, Kailh, AKKO, Otemu).

1. Using the provided 2-in-1 keycap puller, gently remove the keycap from the desired switch.
2. Use the switch puller tool to carefully grip the top and bottom clips of the switch.
3. Pull the switch straight up to remove it from the PCB.
4. Align the pins of the new switch with the holes on the PCB. Ensure the pins are straight.
5. Gently press the new switch into place until it clicks securely. Do not force it.
6. Replace the keycap.

5.3 Macro Programming

The K87 keyboard supports macro programming when in wired mode. Specific software or key combinations for macro setup are typically provided by the manufacturer. Refer to the official ZIYOU LANG website or support resources for detailed instructions on macro creation and assignment.

5.4 Sleep Saving Mode

The keyboard features two stages of sleep-saving mode to conserve battery life during inactivity. The backlight can be turned off or on using Fn + X.

6. Maintenance

6.1 Cleaning

• Disconnect the keyboard from all power sources before cleaning.
• Use a soft, lint-free cloth slightly dampened with water or a mild cleaning solution to wipe the keycaps and keyboard body.
• For dust and debris between keycaps, use compressed air or a small brush.
• Avoid using harsh chemicals or abrasive materials.

6.2 Switch Care

• When removing or installing switches, ensure they are pulled/pushed straight to avoid bending the pins.
• Store spare switches in a clean, dry place.

7. Troubleshooting

• Keyboard not responding:
  - Check the connection mode (wired, 2.4G, BT) and ensure it matches your device.
  - Verify the USB cable is securely connected or the 2.4GHz receiver is properly inserted.
  - Ensure the keyboard battery has sufficient charge.
• Bluetooth pairing issues:
  - Make sure the keyboard is in Bluetooth pairing mode (indicator flashing).
  - Remove previous pairings for the keyboard on your device and try pairing again.
  - Ensure your device's Bluetooth is enabled and discoverable.
• Backlight not working or inconsistent:
  - Check if the backlight is turned off (Fn + X).
  - Adjust brightness settings (Fn + PgUp/PgDn).
  - Ensure the keyboard battery is charged.
• Keys not registering or double-typing:
  - This may indicate a faulty switch. Use the switch puller to remove and re-seat the switch firmly.
  - If the issue persists, try replacing the switch with one of the spares provided.
• 2.4GHz wireless connection unstable:
  - Ensure the 2.4GHz receiver is not obstructed and is close to the keyboard.
  - Avoid interference from other wireless devices operating on the 2.4GHz band.

8. Specifications

9. Warranty and Support

For warranty information, technical support, or any inquiries regarding your ZIYOU LANG K87 keyboard, please refer to the warranty card included in your package or visit the official ZIYOU LANG website. Our customer service team is available to assist you with any product-related concerns.