EPOMAKER Ajazz AK820 Pro 75% Wireless Mechanical Keyboard

1. Product Overview

The EPOMAKER Ajazz AK820 Pro is a versatile 75% wireless mechanical keyboard designed for both gaming and productivity. It features a compact layout, a TFT smart display, and multiple connectivity options.

Figure 1.1: Top-down view of the EPOMAKER Ajazz AK820 Pro keyboard, showcasing its 75% layout with grey and yellow keycaps, a rotary knob, and a small display screen.

Figure 1.2: Overview of the AK820 Pro's key features, including Pixel Screen, 75% Layout, 3 Modes, Hot-Swap, Full RGB, Knob Design, 4000mAh Battery, and Custom Driver.

2. Package Contents

Verify that all items are present in the package:

• EPOMAKER Ajazz AK820 Pro Mechanical Keyboard
• USB-C Cable
• Keycap Puller
• Switch Puller
• User Manual (this document)

Figure 2.1: The keyboard and its accessories, including the USB-C cable, keycap puller, and user manual, laid out next to the product box.

3. Setup and Connectivity

3.1 Initial Charging

Before first use, it is recommended to fully charge the keyboard. Connect the provided USB-C cable to the keyboard's USB-C port and the other end to a powered USB port (e.g., computer, wall adapter). The keyboard features a 4000mAh battery for extended use.

Figure 3.1: An illustration highlighting the keyboard's 4000mAh rechargeable battery capacity.

3.2 Connectivity Modes

The AK820 Pro supports three connectivity modes: Bluetooth, 2.4GHz wireless, and USB-C wired.

• USB-C Wired Mode: Connect the keyboard directly to your device using the provided USB-C cable. This mode also charges the keyboard.
• 2.4GHz Wireless Mode:
  1. Locate the 2.4GHz USB receiver, typically stored in a compartment on the keyboard.
  2. Plug the USB receiver into an available USB port on your computer.
  3. Switch the keyboard to 2.4GHz mode using the physical switch on the back or side of the keyboard. (Refer to Figure 3.3 for switch location).
  4. Press FN + R to activate 2.4GHz pairing mode if needed.
• Bluetooth Mode:
  1. Switch the keyboard to Bluetooth mode using the physical switch on the back or side of the keyboard. (Refer to Figure 3.3 for switch location).
  2. Press FN + Q, FN + W, or FN + E to select one of the three available Bluetooth channels. The TFT screen will indicate the selected channel.
  3. Hold the selected FN + (Q/W/E) key combination for 3-5 seconds until the indicator light flashes, indicating pairing mode.
  4. On your device (computer, tablet, phone), search for Bluetooth devices and select "AK820 Pro" to connect.

Figure 3.2: Visual representation of the keyboard's triple connectivity options: USB-C Wired Mode, 2.4G Wireless Mode (FN+R), and Bluetooth Mode (FN+Q/W/E), connecting to various devices.

Figure 3.3: Close-up of the physical switches on the keyboard, allowing selection between Windows/Mac operating systems and Bluetooth/USB/2.4G connectivity modes.

3.3 System Compatibility

The keyboard is fully compatible with both Mac and Windows operating systems. Use the physical switch on the keyboard to select the appropriate operating system mode for optimal key mapping and functionality.

Figure 3.4: Detail of the adjustable stand on the keyboard's underside, allowing users to set an ergonomic typing angle.

4. Operating Instructions

4.1 TFT Smart Display and Knob

The integrated TFT screen provides real-time information and customization options. The rotary knob allows for quick adjustments.

• Display Information: Battery status, date & time, connectivity mode (Win/BT/2.4G), and OS display.
• Customizable Visuals: The screen supports custom GIF images.
• Knob Functionality: Primarily controls volume. Can be customized for other actions via software.

Figure 4.1: Close-up of the 0.85-inch TFT versatile screen, showing various display modes including Home Page (date, time, battery, connectivity), Custom GIF Image, Settings for Effect & Colour, Brightness & Speed, and Volume & Language.

4.2 Backlight Settings

The keyboard features vibrant RGB backlighting with 1.6 million color combinations and south-facing LEDs for superior shine-through.

• FN + ↑: Increase Backlight Brightness
• FN + ↓: Decrease Backlight Brightness
• FN + \: Switch Backlight Effect
• FN + X: Turn On/Off Backlight

Figure 4.2: Diagram illustrating the key combinations for adjusting backlight settings: FN+Up Arrow for brightness up, FN+Down Arrow for brightness down, FN+Backslash for effect switching, and FN+X for turning backlight on/off.

4.3 Customization Software

Advanced customization of key assignments, macros, and RGB lighting profiles can be done using the dedicated software. This software allows for in-depth control over the keyboard's functions and the TFT display.

Figure 4.3: Screenshot of the keyboard's programmable software interface, showing options for LED lighting modes, color selection, image preview for the TFT screen, and key remapping.

For software download and detailed instructions, please refer to the official EPOMAKER website or the provided user manual PDF.

4.4 Official Product Videos

Watch these official videos for a visual guide on the keyboard's features and performance:

5. Maintenance

5.1 Cleaning

To maintain optimal performance and appearance, regularly clean your keyboard. Use a soft, lint-free cloth to wipe down the keycaps and chassis. For deeper cleaning, you can remove keycaps using the provided keycap puller and use compressed air to clear debris from underneath.

5.2 Hot-Swappable Switches

The AK820 Pro features hot-swappable sockets, allowing you to easily change mechanical switches without soldering. This enables customization of typing feel and sound.

1. Using the provided switch puller, gently grip the switch and pull upwards to remove it from the PCB.
2. Align the pins of the new switch with the holes on the PCB.
3. Press the new switch firmly into place until it clicks. Ensure the switch is seated correctly and not bent.

Figure 5.1: Illustration demonstrating the hot-swappable feature, showing a switch being removed and replaced using a switch puller, highlighting the pre-lubricated switches and sockets.

The keyboard comes with pre-lubricated switches and plate-mounted stabilizers for a smooth typing experience.

Figure 5.2: Detailed specifications for Ajazz Gift Switches (Linear type) and Ajazz Flying Fish Switches (Linear type), including total travel, pre-travel, initial force, and bottom force.

5.3 Keycap Replacement

To replace keycaps, use the provided keycap puller. Gently hook the puller onto the keycap and pull straight up. To install new keycaps, align them with the switch stem and press down firmly until they are seated.

6. Troubleshooting

• Keyboard not responding:
  • Ensure the keyboard is charged.
  • Check the connectivity mode switch (USB-C, 2.4GHz, Bluetooth) and ensure it matches your connection method.
  • For 2.4GHz, ensure the USB receiver is properly inserted.
  • For Bluetooth, ensure the keyboard is paired and within range. Try re-pairing if necessary.
  • Try connecting via USB-C cable to rule out wireless issues.
• 2.4GHz connection drops frequently:
  • Ensure the USB receiver is not obstructed and is close to the keyboard.
  • Avoid placing the receiver near other wireless devices that might cause interference (e.g., Wi-Fi routers, other wireless peripherals).
  • Try plugging the receiver into a different USB port.
• Backlight not working or incorrect:
  • Press FN + X to toggle the backlight on/off.
  • Adjust brightness using FN + ↑/↓.
  • Cycle through effects using FN + \.
  • Ensure the keyboard is not in a low-power state.
• TFT screen not displaying correctly:
  • Ensure the keyboard is powered on.
  • Check for firmware updates using the customization software.
• Resetting the keyboard:
  • To perform a factory reset, press FN + SPACE BAR for a few seconds. This will revert all settings to default.

7. Specifications

Figure 7.1: Diagram showing the dimensions of the AK820 Pro keyboard (9.2 inches wide, 5.3 inches deep, 1 inch high) and highlighting its 81 keys, knob, and screen.

Figure 7.2: Exploded view illustrating the internal layers of the keyboard, including Keycaps, Top Case, Switches, Plate, Poron Sandwich Cotton, IXPE Switch Pad, PET Sound Enhancement Pad, PCBA, Bottom Cotton, Bottom Silicone Sandwich, and Bottom Case, demonstrating the gasket-mounted design.

8. Warranty and Support

8.1 Warranty Information

EPOMAKER products typically come with a standard manufacturer's warranty covering defects in materials and workmanship. Please refer to the official EPOMAKER website or your purchase documentation for specific warranty terms and duration.

8.2 Customer Support

For technical support, troubleshooting assistance, or warranty claims, please contact EPOMAKER customer service through their official website or the contact information provided with your purchase.

You can also find the official User Manual PDF here for additional details.