LEOBOG Hi75 Series Custom Mechanical Keyboard User Manual

1. Introduction

The LEOBOG Hi75 Series offers a range of custom mechanical keyboards designed for enthusiasts and gamers. Featuring a 75% layout with 81 keys, aluminum alloy construction, hot-swappable switches, and a GASKET soft elastic structure, these keyboards provide a premium typing experience. Depending on the model, features include wired, 2.4G wireless, and Bluetooth connectivity, as well as vibrant RGB backlighting.

2. Product Overview

2.1 Key Features

• Aluminum Alloy Construction: Upper and lower covers are made from aluminum alloy with an appearance spraying process for durability and aesthetics.
• 75% Layout (81 Keys): A compact layout that saves approximately 25% desktop space compared to traditional 108-key keyboards, while retaining essential function keys.
• Hot-Swappable Switches: Equipped with LEOBOG custom hot-swappable axle seats, compatible with most 3-pin/5-pin mechanical switches on the market. This allows for easy customization and replacement of switches without soldering.
• GASKET Soft Elastic Structure: Utilizes a GASKET structure with multi-layer silencing cotton cushions (PO cotton, IXPE shaft pad, PET gasket, single key slotted PCB, PO bottom cotton, PET bottom pad) to reduce typing resonance, resulting in softer, more delicate key sounds.
• Refined Satellite Axis: High-precision molds and factory lubrication ensure a more excellent feel for large keys, with careful adjustment to restore the switch feel and produce pure key sounds.
• Multi-function Knob: A versatile knob for quick operations such as switching light effects, adjusting brightness, and controlling volume (mute/unmute, increase/decrease volume).
• RGB Full-Color Backlight (RGB Versions Only): Offers 16.8 million colors, 17 light effect modes, and 10 music rhythm light effects. Supports custom light effects via driver software.
• Full Key No Impact: Anti-ghosting feature ensures all key presses are registered accurately, even during rapid typing or gaming.
• 1.2mm Thickness PCB Single Key Slot: Optimized PCB design for consistency and performance.
• PP/FR4 Slotted Positioning Plate: Improves stability and experience of peripheral key positions.

2.2 Model Variants

The LEOBOG Hi75 Series includes several variants with different connectivity and lighting options:

• Hi75: Wired connection, available in RGB or Matt versions.
• Hi75C: Wired connection, original PBT three-color keycaps, Star Arrow axis, no main light, PP positioning plate.
• Hi75C Pro: Tri-mode connection (2.4G wireless, wired Type-C, Bluetooth), various keycap craftsmanship options (OEM PBT gradient, original PBT three-color, original PBT contour line), Star Arrow or Turquoise axis, RGB full-color main light, FR4 positioning plate, 4000mAh battery.

3. Specifications

4. Setup Instructions

4.1 Package Contents

Your LEOBOG Hi75 Series keyboard kit typically includes:

• Keyboard body x 1
• Keyboard spring wire (Type-C cable) x 1
• Simple instruction card x 1
• Instruction manual (including warranty card) x 1
• Spare shaft x 2
• Shaft key puller x 1
• Dust cover x 1

4.2 Connecting the Keyboard

The LEOBOG Hi75 Series keyboards support various connection modes depending on the model:

4.2.1 Wired Connection (All Models)

1. Locate the Type-C port on the keyboard.
2. Connect the provided Type-C to USB cable to the keyboard and then to an available USB port on your computer.
3. The keyboard should be automatically recognized by your operating system.

4.2.2 2.4G Wireless Connection (Hi75C Pro Only)

1. Locate the 2.4G USB receiver (dongle) for your keyboard.
2. Plug the 2.4G receiver into an available USB port on your computer.
3. Switch the keyboard to 2.4G wireless mode (refer to the keyboard's mode switch, usually located on the back or side).
4. The keyboard should connect automatically.

4.2.3 Bluetooth Connection (Hi75C Pro Only)

1. Switch the keyboard to Bluetooth mode.
2. On your computer or device, enable Bluetooth and search for new devices.
3. Select the LEOBOG Hi75C Pro from the list of available devices to pair.
4. Follow any on-screen prompts to complete the pairing process.

4.3 Installing Switches and Keycaps

Your LEOBOG Hi75 Series keyboard is a barebones kit, meaning switches and keycaps are not pre-installed. You will need to install them yourself.

1. Switches: Using the provided shaft key puller, carefully align each switch with the hot-swap socket on the PCB. Press down gently until the switch clicks into place. Ensure the pins are straight before inserting to avoid bending.
2. Keycaps: Once all switches are installed, align the keycaps with their corresponding switches and press down firmly until they are seated.

4.4 Driver Installation (Windows Only)

For advanced customization, including custom light effects and macro programming, download and install the LEOBOG client driver from the official LEOBOG website. This driver is compatible with Windows operating systems.

5. Operating Instructions

5.1 Multi-function Knob Operation

The knob on your keyboard provides quick control over various functions:

• Short Press: Switches between different light effects (RGB versions) or mutes/unmutes volume (Matt versions).
• Rotate Left: Decreases brightness (RGB versions) or decreases volume.
• Rotate Right: Increases brightness (RGB versions) or increases volume.
• Long Press: Switches between Game mode and Office mode. The indicator light will be steady for Office mode and breathing for Game mode.

5.2 RGB Lighting Control (RGB Versions Only)

Your RGB keyboard offers extensive lighting customization:

• Light Effects: Short press the knob to cycle through 17 different light effects.
• Brightness Adjustment: Rotate the knob left to decrease brightness, and right to increase brightness.
• Music Rhythm Effects: The keyboard supports 10 music rhythm light effects. These can often be activated or customized via the driver software.
• FN Key Combinations: Use the FN key in combination with other keys (e.g., FN + \ key) to switch between various lighting modes and game modes. Refer to the specific key combinations provided in the quick start guide or driver software.

6. Maintenance

6.1 Cleaning the Keyboard

• Dust: Use the provided dust cover when the keyboard is not in use. For accumulated dust, use a can of compressed air to blow out debris from between keycaps.
• Keycaps: Keycaps can be removed for deeper cleaning. Use a keycap puller (not included) to gently remove them. Clean with a mild soap solution and a soft cloth, then ensure they are completely dry before reattaching.
• Case: Wipe the aluminum alloy case with a soft, damp cloth. Avoid harsh chemicals or abrasive materials.

6.2 Switch and Keycap Replacement

Thanks to the hot-swappable design, you can easily replace switches and keycaps:

• Removing Keycaps: Use a keycap puller to gently pull keycaps straight up.
• Removing Switches: Use the provided shaft key puller to grip the top and bottom clips of the switch, then gently pull the switch straight up from the PCB.
• Installing Switches: Align the new switch's pins with the hot-swap socket and press down firmly until it clicks into place. Ensure pins are not bent.
• Installing Keycaps: Align the keycap with the switch stem and press down firmly.

7. Troubleshooting

7.1 Common Issues and Solutions

Keyboard not responding (Wired)

• Ensure the Type-C cable is securely connected to both the keyboard and the computer.
• Try a different USB port on your computer.
• Test with a different Type-C cable if available.
• Restart your computer.

Keyboard not responding (Wireless 2.4G/Bluetooth)

• Ensure the keyboard is switched to the correct wireless mode (2.4G or Bluetooth).
• For 2.4G, ensure the USB receiver is plugged in and recognized by your computer.
• For Bluetooth, ensure Bluetooth is enabled on your device and the keyboard is paired. Try re-pairing if necessary.
• Check the keyboard's battery level (Hi75C Pro). Charge if low.

RGB lighting not working or incorrect (RGB versions)

• Ensure the keyboard is connected and powered on.
• Check the brightness settings using the multi-function knob.
• If using the driver software, ensure it is installed correctly and the settings are applied.
• Some models (Hi75C) do not have main RGB lighting.

Keys not registering or double-typing

• Ensure the switches are fully seated in their sockets. Gently press down on the affected switch.
• If a switch is faulty, use the shaft key puller to replace it with a spare or a new one.
• Clean any debris around the affected switch.

Driver software not installing or recognizing keyboard

• Ensure you have downloaded the correct driver for your specific keyboard model from the official LEOBOG website.
• The driver is designed for Windows systems. It may not be compatible with MacOS or Linux.
• Temporarily disable antivirus or firewall software during installation if issues persist.

8. User Tips

• Customization: Experiment with different mechanical switches to find your preferred typing feel and sound. The hot-swappable design makes this easy.
• Layout: The 75% layout is a space-saving design. Familiarize yourself with the FN key combinations for accessing secondary functions.
• Case Material: The keyboard features an aluminum alloy case, which contributes to its premium feel and durability. Note that the internal positioning plate is typically PP or FR4, not aluminum.
• ISO Layout: The keyboard is designed with an ANSI (American National Standards Institute) layout. ISO (International Organization for Standardization) keycap sets or configurations are generally not compatible without significant modification.

9. Warranty and Support

9.1 Warranty Period

The LEOBOG Hi75 Series keyboard comes with a 12-month warranty from the date of purchase. Please retain your proof of purchase for warranty claims.

9.2 Technical Support

For technical assistance, troubleshooting, or warranty inquiries, please contact LEOBOG customer support through their official website or the retailer where you purchased the product. Refer to the contact information provided in your product packaging or on the official LEOBOG website.