1. Производот завршиview
The YUNZII C75 is a 75% layout wireless mechanical keyboard designed for versatile use across multiple operating systems and devices. It features a gasket-mounted structure, hot-swappable switches, Dye-Sub PBT MOA keycaps, and vibrant RGB lighting. The keyboard supports three connectivity modes: Bluetooth 5.0, 2.4GHz wireless, and USB-C wired.

Figure 1: YUNZII C75 Wireless Mechanical Keyboard (Beige, Candy Switch) with colorful keycaps and RGB lighting.
2. Содржина на пакетот
Проверете дали сите артикли се присутни во вашиот пакет:
- 1 x YUNZII C75 Keyboard
- 1 x USB кабел (тип-C)
- 1 x Извлекувач на прекинувач и капаче за клучеви
- 1 x User Manual / Function Card
- 1 x 2.4G Wireless Dongle
- 1 x Покривка за прашина
- 1 x подлога за глувче
- 1 x Greeting Card
- Дополнителни копчиња и прекинувачи

Figure 2: All items included in the YUNZII C75 keyboard package.
3. Поставување
3.1 Режими на поврзување
The YUNZII C75 supports three connection methods:
- Bluetooth 5.0: For wireless connection to up to 3 devices.
- 2.4 GHz безжичен: For wireless connection via the included USB dongle.
- USB-C кабел: For direct connection and charging via the USB-C cable.
3.2 Поврзување на вашата тастатура
- Вклучување: Locate the power switch on the side of the keyboard and slide it to the ON position.
- Изберете режим: Use the mode switch (usually next to the power switch) to select your desired connection mode:
- Bluetooth: Притиснете Fn + 1/2/3 to select a Bluetooth channel. The indicator light will flash, indicating pairing mode. Пребарај за 'YUNZII C75' on your device and connect.
- 2.4 GHz безжичен: Притиснете fn+4. The indicator light will flash. Retrieve the 2.4GHz USB dongle from its storage slot (underneath one of the paw feet on the keyboard's base) and plug it into your computer's USB port. The keyboard will automatically connect.
- USB-C кабел: Connect the provided USB-C cable to the keyboard's USB-C port and the other end to your computer. The keyboard will automatically switch to wired mode and begin charging.
- Системска компатибилност: The keyboard is compatible with Windows, macOS, Android, and iOS. Use fn + A за Windows и Fn + S for macOS to optimize key functions for your operating system.

Figure 3: Tri-mode connectivity options for the YUNZII C75 keyboard.

Figure 4: The 2.4GHz wireless dongle is conveniently stored under one of the keyboard's paw feet.
3.3 Полнење
The keyboard is equipped with a 5500mAh battery. Connect the USB-C cable to charge. The indicator lights will show charging status (e.g., flashing red for low battery, solid red for charging, solid green for full charge).
4. Упатства за работа
4.1 RGB контрола на осветлувањето
The YUNZII C75 features customizable RGB backlighting and side-lighting. Use the following Fn key combinations to adjust settings:
- Fn + Backspace: ВКЛУЧЕНО/ИСКЛУЧЕНО позадинско осветлување
- Fn + Enter: Променете ја бојата на позадинското осветлување
- Fn + Стрелка нагоре: Осветленост горе
- Fn + Стрелка надолу: Осветленост надолу
- Fn + стрелка надесно: Blinking Speed Up
- Fn + Лева стрелка: Blinking Speed Down
- Fn + \|: Променете го ефектот на задно осветлување
- Fn + Del: Side-Light ON/OFF
- Fn + Home: Change Side-Light Effect
- Fn + Крај: Change Side-Light Color
- Fn + PgUp: Side-Light Brightness Up
- Fn + PgDn: Side-Light Brightness Down
- Fn + , <: Side-Light Speed Down
- Fn + . >: Side-Light Speed Up
- Fn + Pause: Smiley Light ON/OFF

Figure 5: RGB lighting controls and Fn key shortcuts.
Video 1: Demonstration of how to change RGB side-light settings on the YUNZII C75 keyboard.
4.2 Прекинувачи што може да се заменат со топла струја
The YUNZII C75 features a hot-swappable PCB, allowing you to easily change mechanical switches without soldering. It supports both 3-pin and 5-pin switches. Use the included switch puller to remove and install switches.

Figure 6: Hot-swappable switch functionality and tools.
4.3 Софтвер за прилагодување
The keyboard offers limitless customization through programmable software. This allows you to remap keys, create complex macros, and personalize RGB backlighting for both Windows and Mac systems. Refer to the official YUNZII website for software download and instructions.
4.4 Function Key Shortcuts
Utilize the Fn key in combination with other keys for various shortcuts:
- Windows (Fn + A):
- Fn+F1=Computer
- Fn+F2=Browser
- Fn+F3=Е-пошта
- Fn+F4=Calculator
- Fn+F5=Player
- Fn+F6=Стоп
- Fn+F7=Претходна песна
- Fn+F8=Пушти/Пауза
- Fn+F9=Следна песна
- Fn+F10=Исклучи звук
- Fn+F11=Volume Down
- Fn+F12=Volume Up
- macOS (Fn + S):
- F1=Screen Brightness Down
- F2=Screen Brightness Up
- F3=Контрола на мисијата
- F4=Поставка за стартување
- F5=No Function
- F6=No Function
- F7=Previous Track
- F8=Пушти/Пауза
- F9=Next Track
- F10=Исклучи звук
- F11=Volume Down
- F12=Volume Up
5. Одржување
5.1 Чистење
Use the provided dust cover when the keyboard is not in use to prevent dust accumulation. For cleaning, gently wipe the keycaps and keyboard surface with a soft, dry cloth. Avoid using harsh chemicals or abrasive materials.
5.2 Замена на прекинувач и капаче за копче
To replace a keycap, use the keycap puller to gently lift the keycap straight up. To replace a switch, first remove the keycap, then use the switch puller to carefully grip the switch and pull it straight out. Align the pins of the new switch with the sockets on the PCB and press firmly until it clicks into place. Ensure pins are not bent before insertion.
6 Смена на проблеми
- Тастатурата не се поврзува: Ensure the keyboard is powered on and the correct mode (Bluetooth, 2.4GHz, or wired) is selected. For Bluetooth, ensure your device's Bluetooth is enabled and the keyboard is in pairing mode. For 2.4GHz, ensure the dongle is securely plugged in. For wired, check the USB-C cable connection.
- RGB светлата не работат: Check the Fn key combinations for turning lights on/off and adjusting brightness/effects. Ensure the keyboard has sufficient battery charge.
- Копчињата не реагираат: If individual keys are not responding, try replacing the switch using the hot-swap feature. Ensure the switch pins are straight and properly seated.
- Доцнење или повремена врска: For wireless modes, ensure there are no strong interferences (e.g., other 2.4GHz devices, large metal objects) between the keyboard and your device. Try moving closer to the receiver or switching to wired mode.
7. Спецификации
| Карактеристика | Детал |
|---|---|
| Број на модел | C75 |
| Димензии на производот | 13.22 x 6.38 x 1.73 инчи |
| Тежина на ставката | 2.22 фунти |
| Технологија за поврзување | Bluetooth 5.0, безжичен 2.4GHz, USB-C кабел |
| Капацитет на батеријата | 5500 mAh |
| Опис на тастатурата | Механички |
| Материјал за клуч | Dye-Sub PBT MOA Keycaps |
| Задно осветлување | RGB |
| Посебни карактеристики | Осветлување позади, Ергономски, 3 режими, прилагодливи копчиња на екранот, можност за топла замена |
| Компатибилни уреди | Лаптоп, компјутер, паметен телефон |
8. Гаранција
Specific warranty information is not provided in the product details. Please refer to the product packaging or contact YUNZII customer support for warranty details.
9. Поддршка
For further assistance or inquiries, please contact YUNZII Keyboard directly through Amazon. You can typically find a 'Contact Seller' option on the product page or within your order details after purchase.

Figure 7: Steps to contact YUNZII customer support via Amazon.





