EPOMAKER TH108 JIS Full-Size Wireless Mechanical Keyboard User Manual

1. Introduction

The EPOMAKER TH108 JIS is a full-size mechanical keyboard designed for optimal performance and user experience. It features a Japanese Industrial Standard (JIS) layout, offering a comfortable and efficient typing experience for Japanese users. This keyboard supports multiple connectivity options, customizable RGB lighting, and hot-swappable switches, making it versatile for various applications from professional work to gaming.

Image: EPOMAKER TH108 JIS keyboard showcasing its full layout, silent switches, 10000mAh battery, triple connectivity, custom software, RGB backlight, and Windows/Mac compatibility.

2. Package Contents

Please ensure all items are present upon unboxing:

• EPOMAKER TH108 JIS Mechanical Keyboard
• USB-C Cable
• Keycap Puller
• Switch Puller (if applicable, for hot-swappable models)
• User Manual / Quick Start Guide

Image: The EPOMAKER TH108 JIS keyboard, USB cable, and keycap puller included in the package.

3. Setup

3.1. Connectivity Options

The TH108 JIS keyboard supports three connection modes: Wired (USB-C), 2.4GHz Wireless, and Bluetooth 5.0. You can switch between these modes using the switches located on the back of the keyboard.

Image: Close-up of the convenient connection hub on the keyboard, showing switches for Mac/Win, 2.4G/USB/BT modes, and the USB-C port.

3.1.1. Wired Connection (USB-C)

1. Connect the provided USB-C cable to the keyboard's USB-C port.
2. Connect the other end of the cable to an available USB port on your computer.
3. Ensure the mode switch on the keyboard is set to 'USB'.
4. The keyboard will be automatically recognized by your system.

3.1.2. 2.4GHz Wireless Connection

1. Locate the 2.4GHz USB dongle, usually stored in a compartment on the keyboard's underside.
2. Plug the USB dongle into an available USB port on your computer.
3. Set the mode switch on the keyboard to '2.4G'.
4. The keyboard should connect automatically.

3.1.3. Bluetooth 5.0 Connection

1. Set the mode switch on the keyboard to 'BT'.
2. On your device (PC, Mac, tablet, smartphone), enable Bluetooth and search for new devices.
3. The keyboard should appear as 'EPOMAKER TH108 JIS'. Select it to pair.
4. The keyboard can store up to 5 Bluetooth profiles, allowing seamless switching between devices. Use Fn + Q/W/E/R/T to switch between paired devices.

3.2. Operating System Compatibility

The TH108 JIS is compatible with Windows, Mac, Android, and iOS operating systems. Use the Mac/Win switch on the keyboard to select the appropriate layout for your operating system.

Image: The keyboard illustrating its compatibility with Windows, Mac, Android, and iOS devices.

4. Operating Instructions

4.1. Key Layout and Special Functions

The TH108 JIS features a full-size 112-key Japanese layout with hiragana legends printed directly on the keycaps. It includes dedicated keys for Japanese input functions such as '無変換' (Muhenkan), '変換' (Henkan), and 'かな' (Kana) for intuitive operation. Independent mute and volume control keys are also present, simplifying media control.

Image: The keyboard displaying its 112-key JIS layout, dimensions, and hiragana keycap legends.

4.2. Switch Types and Typing Experience

The TH108 JIS is available with two types of factory-lubricated linear switches:

• Sea Salt Silent Switches: Designed for quiet operation, ideal for environments where minimal noise is desired, such as offices or shared spaces.
• Creamy Jade Switches: Provide a clear, crisp typing sound with a satisfying tactile feel, offering a classic mechanical keyboard experience.

The keyboard uses durable dual-shot PBT keycaps, ensuring a firm typing feel and resistance to wear over time.

4.3. Hot-Swappable Design

The TH108 JIS features a hot-swappable PCBA design, allowing users to easily change mechanical switches without soldering. This enables customization of typing feel and sound with most 5-pin mechanical switches.

Image: The keyboard highlighting its hot-swappable PCB, precision-tuned stabilizers, and two-stage adjustable feet.

4.4. Gasket Structure

The keyboard incorporates a gasket-mounted structure, which provides a softer and more cushioned typing experience by isolating the plate from the case. This design enhances typing comfort and acoustics.

Image: Diagram illustrating the internal gasket structure of the keyboard, showing layers like PBT keycaps, lubricated switches, PC plate, foam, and silicone bottom pad.

4.5. RGB Backlighting

The TH108 JIS features customizable per-key RGB backlighting. Users can adjust colors, effects, brightness, and speed to personalize their typing environment or enhance gaming aesthetics. Dynamic backlighting can respond to key presses, providing visual feedback.

Image: The keyboard illuminated with vibrant per-key RGB backlighting.

4.6. Custom Software (Web Driver)

A dedicated Chrome-based software (web driver) is available for deep customization of the TH108 JIS keyboard. This software can be used online or offline on Mac and Windows systems to:

• Remap key assignments
• Create and manage macro commands
• Adjust backlight effects and sensitivity
• Configure system settings

This allows users to tailor the keyboard to their specific gaming style or business needs.

Image: The keyboard shown alongside a computer screen displaying the EPOMAKER web-based custom software interface, illustrating key remapping, macro recording, input customization, backlight adjustment, music rhythm, and system settings.

4.7. Battery Life and Polling Rate

The keyboard is equipped with a 10000mAh battery, providing extended usage times:

• Up to 45 hours with RGB backlight ON.
• Up to 200 hours with RGB backlight OFF.

Polling rates vary by connection type:

• Wired: 1000Hz (2ms response time)
• 2.4GHz Wireless: 1000Hz (5ms response time)
• Bluetooth: 125Hz (11ms response time)

Image: The keyboard with graphics indicating 45 hours of battery life with RGB on and 200 hours with RGB off, powered by a 10000mAh battery.

Image: The keyboard with a diagram showing polling rates and response times for wired, 2.4GHz, and Bluetooth connections.

4.8. N-Key Rollover

The TH108 JIS supports N-Key Rollover (NKRO), allowing all keys to be registered simultaneously. This ensures that every keystroke is accurately processed, even during rapid typing or complex key combinations, which is crucial for gaming and fast data entry.

Image: The keyboard illustrating N-Key Rollover, showing multiple simultaneous key presses being registered.

5. Maintenance

5.1. Cleaning

• Use a soft, lint-free cloth to wipe the keycaps and keyboard surface.
• For deeper cleaning, use the provided keycap puller to remove keycaps and clean underneath with compressed air or a small brush.
• Avoid using harsh chemicals or abrasive materials that could damage the keyboard finish or keycap legends.

5.2. Battery Care

• To prolong battery life, avoid fully discharging the battery frequently.
• Store the keyboard in a cool, dry place when not in use for extended periods.
• If the keyboard will not be used for a long time, charge it to about 50% before storing.

6. Troubleshooting

6.1. 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.
• 2.4GHz Wireless Mode: Ensure the USB dongle is properly inserted and the keyboard switch is set to '2.4G'. Try re-pairing by unplugging and re-plugging the dongle.
• Bluetooth Mode: Ensure Bluetooth is enabled on your device and the keyboard switch is set to 'BT'. Try re-pairing the device in your system's Bluetooth settings. Ensure the keyboard is charged.

6.2. RGB Backlight Not Working/Incorrect

• Check the keyboard's custom software for backlight settings.
• Ensure the keyboard is not in a low-power mode that might disable RGB.
• Try resetting the keyboard to factory defaults (refer to the quick start guide for specific key combinations).

6.3. Keys Not Registering or Double-Typing

• If using hot-swappable switches, ensure the switch is fully seated in its socket.
• Clean around the affected key to remove any debris.
• If the issue persists, consider replacing the switch with a new one.

7. Specifications

8. Warranty and Support

The EPOMAKER TH108 JIS keyboard comes with a 1-year manufacturer's warranty from the date of purchase. This warranty covers defects in materials and workmanship under normal use.

For technical support, warranty claims, or further assistance, please visit the official EPOMAKER website or contact their customer service through the channels provided in your quick start guide.

Please retain your proof of purchase for warranty validation.