Introduction
This manual provides comprehensive instructions for the SKYLOONG QMK/VIA Mechanical Keyboard series, including models GK21, GK68, GK75, and GK87. It covers setup, operation, maintenance, and specifications to help you maximize your keyboard's performance. These keyboards feature durable ABS plastic casing, PBT keycaps, hot-swappable mechanical switches, and QMK/VIA compatibility for advanced customization.
Figure 1: SKYLOONG QMK/VIA Mechanical Keyboard Series Overview
Setup Instructions
- Unpacking: Carefully remove the keyboard and any accessories from the packaging.
- Connectivity: Connect the keyboard to your computer using the provided USB-C cable. The keyboard is designed for wired connectivity.
- System Compatibility: The keyboard is compatible with both Windows and Mac operating systems. No additional drivers are typically required for basic functionality.
- QMK/VIA Software: For advanced customization, including key remapping and macro creation, download and install the QMK/VIA software. Specific JSON files for each model are available for download:
- GK21 IceBlue: https://github.com/NaturalZh/qmk_firmware07072023/releases/tag/gk21_bl_v1.0.0
- GK21 RGB: https://github.com/NaturalZh/qmk_firmware07072023/releases/tag/gk21_pro_v1.0.0
- GK68 IceBlue: https://github.com/JZ-Skyloong/VIA_keyboards/tree/gk68_bl/v3/skyloong/gk68/bl
- GK68 RGB: https://github.com/JZ-Skyloong/VIA_keyboards/tree/gk68_q1/v3/skyloong/gk68/g1
- GK75 IceBlue: https://github.com/JZ-Skyloong/VIA_keyboards/blob/gk75_bl_ansi/v3/skyloong/gk75/bl/gk75_bl_ansi.json
- GK75 RGB: https://github.com/JZ-Skyloong/VIA_keyboards/blob/gk75_q2_ansi/v3/skyloong/gk75/q2/gk75_q2_ansi.json
- GK87 IceBlue: https://github.com/JZ-Skyloong/VIA_keyboards/blob/gk87_bl_pro/v3/skyloong/gk87/bl/gk87_bl_pro_ansi.json
- GK87 RGB: https://github.com/JZ-Skyloong/VIA_keyboards/blob/gk87_q1/v3/skyloong/gk87/q1/gk87_q1_ansi.json
Operating Instructions
Basic Key Functions
The keyboard operates as a standard QWERTY layout. Refer to your specific model for any unique key placements or secondary functions accessible via the 'Fn' key.
Backlight Control
Your keyboard features either Ice-Blue single backlighting or 16.8 million color RGB backlighting. Lighting modes and brightness can typically be adjusted using key combinations (e.g., Fn + arrow keys or dedicated lighting keys) or through the QMK/VIA software.
QMK/VIA Customization
QMK/VIA allows for extensive customization of your keyboard's layout and functions. You can remap keys, create macros, and configure layers. One notable feature is the Tap-Hold function:
Figure 2: QMK/VIA Tap-Hold Function
- Tap (Short Press): Performs a primary function (e.g., Spacebar).
- Hold (Long Press): Performs a secondary function (e.g., Shift, Fn, Menu, Ctrl).
This function can be arbitrarily set to your most commonly used key or key combination functions via the QMK/VIA software.
Knob Functionality
- GK21 Model: The knob on the GK21 is hot-swappable, allowing for replacement or addition of up to 4 knobs.
- GK68/GK75/GK87 Models: The knob on these models is not designed for disassembly or replacement.
Figure 3: GK21 Hot-Swappable Knob
Maintenance
Keycap Replacement
The keyboard features durable PBT keycaps with dual-color injection molding, resistant to fading and scratches. To replace keycaps, gently pull them upwards using a keycap puller. Align new keycaps with the switch stem and press down firmly until secure.
Switch Replacement (Hot-Swappable)
This keyboard supports hot-swappable switches, compatible with most 3/5-pin mechanical switches. To replace a switch:
- Power off the keyboard and disconnect the USB-C cable.
- Using a switch puller, carefully grip the top and bottom clips of the switch and pull upwards to remove it.
- Align the pins of the new switch with the holes on the PCB. Ensure the pins are straight to avoid bending.
- Gently press the new switch into place until it clicks securely.
Figure 4: Hot-Swappable Switch Replacement
Cleaning
Regularly clean your keyboard to maintain performance and appearance. Use a soft brush or compressed air to remove dust and debris from between keycaps. For stubborn dirt, lightly dampen a cloth with water or a mild cleaning solution and wipe the keycaps and casing. Avoid spraying liquids directly onto the keyboard.
Troubleshooting
- Keyboard Not Responding: Ensure the USB-C cable is securely connected to both the keyboard and your computer. Try a different USB port or cable.
- Backlight Not Working/Incorrect: Check the keyboard's lighting controls (Fn key combinations) to ensure the backlight is enabled and set to the desired mode/brightness. If using QMK/VIA, verify your lighting configuration.
- Keys Not Registering: If a specific key is not working, it might be a faulty switch. Utilize the hot-swappable feature to replace the switch. If multiple keys are affected, check QMK/VIA for any accidental remapping or layer changes.
- QMK/VIA Configuration Issues: Ensure you have downloaded the correct JSON file for your specific keyboard model and backlight type (IceBlue or RGB). Incorrect firmware or configuration files can lead to unexpected behavior.
Specifications
General Keyboard Specifications
| Feature | Detail |
|---|---|
| Brand | skyloong |
| Model | GK21/GK68/GK75/GK87 |
| Type | QMK/VIA Mechanical Keyboard |
| Material | ABS (Casing), PBT (Keycaps), Metal |
| Layout | ANSI |
| Keycap | Panda PBT (Doublshot) |
| Backlight | Ice-Blue / 16.8 million RGB |
| Polling Rate | 1000Hz (wired) |
| Connectivity | Wired (USB-C) |
| Battery | None |
| USB-C Cable Length | 1.5m / 4.921 feet (approx.) |
| Switches Hot-Swappable | Yes (3/5 Pin Mechanical switches) |
| Operation Style | Mechanical |
| Keyboard Standard | 87 Keys (TKL) |
| Application | Desktop, Gaming, Multifunctional |
| Origin | Mainland China |
| Certification | CE, FCC, WEEE |
Switch Specifications
Figure 5: SKYLOONG KTT Switch Specifications
The keyboard is equipped with mechanical switches from the Skyloong Rose and Glacier Silent series. Detailed specifications for each switch type are provided in the image above and summarized below:
| Switch Name | Type | Operating Force | Pre-Travel | Total Travel | Keystrokes | Applicable Scene |
|---|---|---|---|---|---|---|
| Rose Silver | Linear | 45 ± 5gf | 1.20 ± 0.4mm | 3.5 ± 0.3mm | 50 million | Game |
| Rose Red | Linear | 45 ± 5gf | 1.9 ± 0.3mm | 3.5 ± 0.3mm | 50 million | Office |
| Rose Brown | Tactile | 45 ± 5gf | 2 ± 0.5mm | 3.5 ± 0.3mm | 50 million | Office, Game |
| Silent CuCl2 | Linear (Silent) | 45 ± 5gf | 2 ± 0.5mm | 3.8 ± 0.5mm | 50 million | Office, Game |
| Silent Ruellia | Tactile (Silent) | 50 ± 10gf | 2 ± 0.5mm | 3.8 ± 0.5mm | 50 million | Office, Game |
User Tips
- Layout Considerations: For users seeking specific layouts like ISO (Spanish or with a large Enter key), please note that this keyboard series primarily features an ANSI layout. Customization via QMK/VIA may allow for some remapping, but physical layout changes are not supported.
- Cost-Effectiveness: Consider bundled purchases for the GK21 with other models (GK68, GK75, GK87) for potential cost savings. Inquire with the seller for combined purchase options.
- Backlight Choice: If RGB lighting is not a priority for your setup, the single light (IceBlue) versions of the keyboards offer a more budget-friendly option while still providing illumination.
Figure 6: GK21 Bundle Options
Warranty and Support
This product is covered by the manufacturer's warranty. For warranty claims, technical support, or further assistance, please refer to the contact information provided by your retailer or the official skyloong website. Keep your proof of purchase for warranty validation.
