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TECURS B0FC62VJRB

TECURS 75% Mechanical Keyboard User Manual

Model: B0FC62VJRB

1. Introduction

This manual provides comprehensive instructions for the setup, operation, maintenance, and troubleshooting of your TECURS 75% Mechanical Keyboard. Please read this manual thoroughly before using the product to ensure optimal performance and longevity.

The TECURS 75% Mechanical Keyboard is designed for both gaming and office use, featuring a compact 81-key layout, Gasket Mount construction for enhanced typing feel, hot-swappable switches, and versatile tri-mode connectivity (2.4G wireless, Bluetooth 5.0, and wired USB-C).

2. Package Contents

Verify that all items are present in the package:

  • TECURS 75% Mechanical Keyboard
  • USB-C Cable
  • 2.4GHz Wireless Receiver
  • Switch Puller
  • Keycap Puller
  • Extra Switches (2 units)
  • User Manual
Image showing the TECURS 75% Mechanical Keyboard and its accessories, including a USB-C cable, 2.4GHz receiver, switch puller, keycap puller, and extra switches.
Figure 2.1: Package Contents

3. Product Overview

3.1 Key Features

  • Gasket Mount Design: Incorporates 5-layer dampening for reduced noise and a consistent typing feel.
  • Hot-Swappable PCB: Compatible with 3-pin and 5-pin mechanical switches, allowing for easy switch customization without soldering.
  • Tri-Mode Connectivity: Supports 2.4GHz wireless, Bluetooth 5.0, and wired USB-C connections for broad compatibility.
  • RGB Backlighting: Customizable RGB lighting with various effects and brightness levels.
  • Multi-function Knob: Controls volume in office mode and RGB brightness/effects in gaming mode.
  • Programmable Keys: Macro recording and key remapping available via software (Windows only, wired mode).
  • 4000mAh Battery: Provides extended wireless usage.
  • Anti-Ghosting: Ensures accurate registration of multiple simultaneous key presses.
  • Side-Printed PBT Keycaps: Durable keycaps with legends printed on the side for longevity and shine-through visibility.
Top-down view of the TECURS 75% Mechanical Keyboard with RGB backlighting, showcasing its compact layout and multi-function knob.
Figure 3.1: TECURS 75% Mechanical Keyboard
Infographic highlighting key features of the TECURS 75% Mechanical Keyboard, including 4000mAh battery, 3 modes, hot-swappable, PBT keycaps, custom driver, 75% layout, RGB backlit, pre-lubricated linear switches, and functional knob.
Figure 3.2: Product Highlights

3.2 Keyboard Layout and Indicators

Close-up of the TECURS 75% Mechanical Keyboard showing numbered indicators for 2.4G Mode, Android, Windows, MacOS, Caps Lock Indicator, Win Lock, and Charging Status.
Figure 3.3: Keyboard Indicators
  1. 2.4G Mode Indicator: Lights up when in 2.4GHz wireless mode.
  2. Android Mode Indicator: Lights up when connected to an Android device.
  3. Windows Mode Indicator: Lights up when connected to a Windows device.
  4. MacOS Mode Indicator: Lights up when connected to a macOS device.
  5. Caps Lock Indicator: Indicates Caps Lock status.
  6. Win Lock Indicator: Indicates Windows key lock status.
  7. Charging Status Indicator: Shows battery charging status.

4. Setup

4.1 Charging the Keyboard

Before first use, fully charge the keyboard. Connect the provided USB-C cable to the keyboard's USB-C port and the other end to a USB power source (e.g., computer, wall adapter). The charging indicator will show the charging status.

Image showing the keyboard's battery indicator, which can be checked by pressing Fn+B.
Figure 4.1: Battery Level Check (Fn+B)

To check the battery level, press Fn + B. The corresponding number row keys will light up to indicate the battery percentage (e.g., keys 1-0 for 10%-100%).

4.2 Connecting the Keyboard

The keyboard supports three connection modes: 2.4GHz Wireless, Bluetooth 5.0, and Wired USB-C. Use the switch located on the back of the keyboard to select your desired mode.

Close-up of the keyboard's side showing the mode switch for USB, BT, and 2.4G connections.
Figure 4.2: Connection Mode Switch

4.2.1 Wired Mode (USB-C)

  1. Set the mode switch to "Wired".
  2. Connect the USB-C cable to the keyboard and your computer's USB port.
  3. The keyboard will be automatically recognized by your system.

4.2.2 2.4GHz Wireless Mode

  1. Set the mode switch to "2.4G".
  2. Insert the 2.4GHz USB receiver into an available USB port on your device.
  3. The keyboard will automatically connect. The 2.4G indicator light on the keyboard will illuminate.

4.2.3 Bluetooth Mode

  1. Set the mode switch to "BT".
  2. Press and hold Fn + 1, Fn + 2, or Fn + 3 for 3-5 seconds to enter pairing mode. The corresponding key (1, 2, or 3) will flash rapidly.
  3. On your device (PC, laptop, tablet, smartphone), enable Bluetooth and search for new devices.
  4. Select "TECURS Keyboard" from the list of available devices.
  5. Once paired, the indicator light for the selected Bluetooth channel will stop flashing and remain solid.
  6. To switch between paired Bluetooth devices, press Fn + 1, Fn + 2, or Fn + 3.
Image illustrating the three connection modes: 2.4GHz wireless, Bluetooth 5.0, and USB-C wired, with various compatible devices like laptops, tablets, and gaming consoles.
Figure 4.3: Tri-Mode Connectivity
Diagram showing the keyboard connected to various devices via 2.4GHz, Bluetooth 5.0, and USB-C wired connections, including PC, laptop, tablet, phone, handheld console, gaming console, and high-end gaming console.
Figure 4.4: Multi-Device Compatibility

4.3 System Compatibility Switching

The keyboard supports Windows, macOS, and Android operating systems. To switch between system layouts:

  • Press Fn + W for Windows mode.
  • Press Fn + A for Android mode.
  • Press Fn + S for macOS mode.

The corresponding indicator light (Windows, Android, or MacOS) will illuminate.

5. Operating Instructions

5.1 RGB Backlighting Control

The keyboard features customizable RGB backlighting. Use the following key combinations to adjust lighting effects:

  • Fn + \ |: Toggle Light Mode (cycle through various lighting effects).
  • Fn + Tab: Toggle Light Color (change static backlight color).
  • Fn + ↑: Increase Lighting Brightness.
  • Fn + ↓: Decrease Lighting Brightness.
  • Fn + ←: Decrease Lighting Speed.
  • Fn + →: Increase Lighting Speed.
Image showing a user working and another user gaming, both using the TECURS keyboard with RGB backlighting. Below are key combinations for adjusting lighting effects: Fn + \ | for light mode, Fn + Tab for light color, Fn + Up/Down arrows for brightness, and Fn + Left/Right arrows for speed.
Figure 5.1: RGB Backlight Controls
Image showing the keyboard with dynamic RGB lighting, indicating support for 10 kinds of music rhythm lighting effects through programming software.
Figure 5.2: Music Rhythm Lighting Effects

5.2 Multi-function Knob

The knob on the top right of the keyboard has dual functionality, depending on the active mode:

Table 5.1: Knob Functions
ModeActionFunction
Office ModeRotate ClockwiseVolume Up
Rotate Counter-clockwiseVolume Down
PressMute/Unmute Audio
Gaming ModeRotate ClockwiseIncrease RGB Brightness (CAPS blinks at max)
Rotate Counter-clockwiseDecrease RGB Brightness (CAPS blinks at min)
PressCycle 17 Lighting Effects
Diagram illustrating the functions of the multi-function scroll wheel in both Office Mode (volume control) and Gaming Mode (brightness and lighting effects control).
Figure 5.3: Multi-function Knob Operation

5.3 Programmable Keys and Custom Software

The keyboard supports macro recording and key remapping through dedicated software. This functionality is available only when the keyboard is in wired mode and connected to a Windows operating system.

Download the custom software from the official TECURS website: https://www.tecurs.com/download/

The software allows you to:

  • Assign key functions.
  • Customize RGB backlighting with 16.8 million colors.
  • Set musical rhythm lighting effects.
  • Create custom shortcut keys.
Screenshot of the TECURS custom software interface, showing options for key assignment, light effects, brightness, color customization, and macro recording.
Figure 5.4: Custom Software Interface

6. Maintenance

6.1 Cleaning

  • Disconnect the keyboard from all power sources and devices before cleaning.
  • Use a soft, lint-free cloth slightly dampened with water or a mild cleaning solution to wipe the surface of the keyboard.
  • For cleaning between keycaps, use a can of compressed air to remove dust and debris.
  • Avoid using harsh chemicals, abrasive cleaners, or solvents, as these can damage the keyboard's finish and keycap legends.

6.2 Hot-Swapping Switches

The keyboard features a hot-swappable PCB, allowing you to change switches without soldering. Use the provided switch puller for this process.

  1. Gently use the switch puller to grip the top and bottom clips of the switch you wish to remove.
  2. Pull the switch straight up with even pressure until it detaches from the PCB.
  3. Align the pins of the new switch with the holes on the PCB. Ensure the pins are straight.
  4. Press the new switch firmly into place until it clicks. Do not force it if there is resistance; check pin alignment.

The keyboard supports both 3-pin and 5-pin mechanical switches.

Diagram illustrating the hot-swappable PCBA design, showing a hot-swappable socket, pre-lubed linear switch, and side-printed PBT keycaps.
Figure 6.1: Hot-Swappable Switch Design
Image showing a close-up of a customized switch with a force-travel graph, indicating 4.00mm total travel, 60±10gf operating force, and 2.0+0.6mm conduction stroke.
Figure 6.2: Customized Switch Specifications
Exploded view diagram of the keyboard's gasket mount design, showing multiple layers of dampening material for improved acoustics and typing feel.
Figure 6.3: Gasket Mount Design

7. Troubleshooting

Table 7.1: Common Issues and Solutions
ProblemPossible CauseSolution
Keyboard not responding in wireless mode.Low battery, incorrect mode selected, receiver not connected, pairing issue.
  • Charge the keyboard.
  • Ensure the mode switch is set to "2.4G" or "BT".
  • For 2.4G, ensure the receiver is properly inserted.
  • For Bluetooth, re-pair the keyboard (Fn+1/2/3 for 3-5s).
Keys not registering or double-typing.Dust/debris under keycap/switch, faulty switch.
  • Remove keycap and use compressed air to clean.
  • If issue persists, hot-swap the switch with one of the spares.
RGB lighting not working or stuck.Software glitch, incorrect settings.
  • Try cycling through lighting effects using Fn + \ |.
  • Adjust brightness using Fn + ↑/↓.
  • If using custom software, ensure it's running and settings are applied.
  • Restart the keyboard.
Custom software not detecting keyboard.Not in wired mode, not on Windows OS.
  • Ensure keyboard is connected via USB-C cable.
  • Ensure your computer is running Windows OS.
  • Download and install the latest software version from TECURS website.

8. Specifications

Table 8.1: TECURS 75% Mechanical Keyboard Specifications
FeatureDetail
BrandTECURS
Product NameTECURS 75 Mechanical Keyboard
ModelB0FC62VJRB
Case MaterialABS
Switch TypeRed Linear Switch (Pre-lubed)
KeycapsDouble-shot PBT with PC coating (Side-printed)
Internal FillingPoron Mid-layer Dampening Foam, Pre-tuned IXPE Switch Pad, Poron Case Foam, Silicone Keyboard Mat
Mounting StyleGasket Mount
Backlight EffectRGB
Backlight FunctionRGB 16.8 Million Colors
Connection MethodBluetooth 5.0, 2.4GHz Wireless, USB-C Wired
System SupportWindows, MacOS, Android
Compatible DevicesLaptop, PC, Gaming Console, Tablet, Smartphone
Recommended UsesGaming, Office
Special FeaturesBacklit, Hot-Swappable, Mechanical, Programmable Keys
ColorGradient Grey
Product Dimensions12.8"L x 5.55"W x 1.6"H (325mm x 141mm x 41mm)
Item Weight2.77 pounds (~942g)
Batteries1 Lithium Ion battery (included), 4000mAh capacity
Detailed table of TECURS Keyboard Specifications, including brand, product name, case material, switch type, keycaps, internal filling, mounting style, backlight effect, connection method, system support, compatible devices, recommended uses, special features, color, product dimensions, item weight, and battery information.
Figure 8.1: TECURS Keyboard Specifications Table

9. Warranty and Support

For warranty information and technical support, please refer to the official TECURS website or contact their customer service directly. Details regarding product registration, warranty claims, and support resources can typically be found on the manufacturer's website.

Manufacturer: TECURS

For further assistance, visit the TECURS Store on Amazon.

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