LEOBOG AU75
LEOBOG x AULA AU75 Mechanical Keyboard User Manual
Model: AU75 | Brand: LEOBOG
1. Introducció
This manual provides detailed instructions for the setup, operation, maintenance, and troubleshooting of your LEOBOG x AULA AU75 75% Mechanical Keyboard. Please read this manual thoroughly before using the product to ensure optimal performance and longevity.
1.1. Què hi ha a la caixa
- LEOBOG x AULA AU75 Mechanical Keyboard
- Cable USB-C
- Extractor de tecles
- Manual d'usuari (aquest document)

Figura 1.1: The LEOBOG x AULA AU75 75% Mechanical Keyboard, showcasing its compact layout and included Nimbus switches.
2. Configuració
The AU75 keyboard supports three connection modes: Bluetooth 5.0, 2.4GHz Wireless, and Wired (USB-C). You can seamlessly switch between up to 5 devices.
2.1. Connexió del teclat
2.1.1. Connexió amb cable (USB-C)
- Localitza el port USB-C al teclat.
- Connect one end of the provided USB-C cable to the keyboard and the other end to an available USB port on your computer.
- El teclat es reconeixerà automàticament i estarà llest per al seu ús.
2.1.2. Connexió sense fil de 2.4 GHz
- Localitza el receptor USB de 2.4 GHz (normalment es guarda en un compartiment del teclat).
- Connecteu el receptor USB a un port USB disponible de l'ordinador.
- Ensure the keyboard's mode switch is set to 2.4G.
- El teclat s'hauria de connectar automàticament. Si no, premeu Fn + 4 per iniciar l'aparellament.
2.1.3. Connexió Bluetooth
- Ensure the keyboard's mode switch is set to BT.
- Mantén premut Fn + 1, Fn + 2, o Fn + 3 durant 3-5 segons fins que l'indicador lluminós parpellegi ràpidament, cosa que indica el mode d'emparellament.
- On your device (PC, tablet, smartphone), go to Bluetooth settings and search for new devices.
- Select "AULA AU75" or similar from the list to connect.
- Un cop connectat, l'indicador lluminós deixarà de parpellejar.

Figura 2.1: The AU75 keyboard demonstrating its multi-device connectivity options, including 2.4G wireless, Bluetooth, and wired USB-C, allowing seamless switching between a desktop PC, tablet, and laptop.
3. Instruccions de funcionament
3.1. Pom multifunció
The AU75 features an upgraded multi-function knob for quick adjustments. Long press the knob to switch between modes (e.g., Lighting Adjustment Mode and Music Adjustment Mode).
- Lighting Adjustment (Game Mode): Rotate clockwise to increase brightness, counter-clockwise to decrease brightness.
- Music Adjustment (Office Mode): Rotate clockwise to increase volume, counter-clockwise to decrease volume. Press the knob down to mute/unmute.

Figura 3.1: Detallada view of the multi-function knob, illustrating its dual functionality for adjusting RGB lighting brightness in Game Mode and controlling audio volume in Office Mode.
3.2. Retroil·luminació RGB
The keyboard features 16.8 million RGB light colors with 16 pre-set lighting effects. Lighting brightness and speed can be adjusted via the knob or specific FN+key combinations. Macro software allows for custom lighting setups.
3.3. Commutadors intercanviables en calent
The AU75 keyboard is equipped with LEOBOG Star Vector Switches and supports hot-swapping, allowing you to change any 3-pin or 5-pin switch without soldering. This feature enables customization of typing feel and sound.

Figura 3.2: Un acabatview of the AU75 Custom Keyboard's key features, highlighting its 75% layout, versatile connectivity (BT/2.4G/USB-C), hot-swappable design, 16+ million RGB lighting, and gasket structure.
3.4. LEOBOG Nimbus Switch V3
The keyboard comes with LEOBOG Nimbus Switch V3, known for their smooth operation and distinct sound profile. These switches feature an all-POM construction, which contributes to a deep sound signature and self-lubricating properties for increasing smoothness over time.

Figura 3.3: A pair of LEOBOG Nimbus Switches V3, illustrating their unique color scheme and design.

Figura 3.4: Force travel diagram for the LEOBOG Nimbus Switch V3, detailing its actuation force (28gf Min), total travel (3.7±0.3mm), conduction point (1.3±0.3mm), and bottom-out force (45±3gf).
3.5. Gasket Structure and Sound Padding
The AU75 features a flexible gasket structure that improves response, dampens key vibration, and reduces noise. It incorporates five layers of sound padding for a purer knocking sound, including IXPE under-switch pad, PET spacer, PO Bottom Cotton, PO sound deadening foam, and Silicone bottom pad.

Figura 3.5: Un va explotar view diagram illustrating the five layers of sound padding within the keyboard, designed to enhance acoustic performance and reduce unwanted noise.
4. Manteniment
4.1. Neteja del teclat
To maintain the keyboard's appearance and functionality, regularly clean it using a soft, lint-free cloth. For deeper cleaning, you may use compressed air to remove dust and debris from between keycaps. For stubborn stains, a slightly damp Es pot fer servir un drap amb sabó suau, assegurant-se que no entri líquid al teclat.
4.2. Replacing Keycaps and Switches
The AU75 keyboard's hot-swappable design allows for easy replacement of keycaps and switches.
- Eliminació de la tapa de les tecles: Feu servir l'extractor de tecles proporcionat per estirar suaument les tecles cap amunt.
- Eliminació del commutador: Use a switch puller (not included, but commonly available) to carefully unclip and pull out the switch. Ensure the switch is pulled straight to avoid bending pins.
- Instal·lació del commutador: Align the new 3-pin or 5-pin switch with the holes on the PCB. Gently press down until it clicks into place. Ensure pins are not bent.
- Instal·lació de la tapa de les tecles: Alineeu la nova tapa de tecla amb la tija de l'interruptor i premeu fermament fins que quedi assentada.

Figura 4.1: A dalt view of two 5-pin mechanical switches, illustrating their structure for easy identification during replacement.

Figura 4.2: A baix view of two 5-pin mechanical switches, showing the pins that connect to the keyboard's PCB for hot-swapping.
5. Solució De Problemes
If you encounter issues with your LEOBOG x AULA AU75 keyboard, please refer to the following common solutions:
- El teclat no respon: Ensure the USB cable is securely connected or the wireless receiver is properly inserted. Check the keyboard's mode switch (Wired, 2.4G, BT) matches your connection method.
- Problemes de connexió sense fil: For 2.4GHz, try replugging the receiver. For Bluetooth, ensure the keyboard is in pairing mode (Fn + 1/2/3 for 3-5 seconds) and your device's Bluetooth is enabled. Try removing the keyboard from your device's Bluetooth list and re-pairing.
- Claus que no es registren: If specific keys are not working, ensure the switches are fully seated. If hot-swapped, try reseating or replacing the switch.
- Il·luminació RGB no funciona/incorrecta: Check the knob settings for brightness. Ensure the keyboard is not in a low-power state. Use the macro software to reset or customize lighting.
- Retard d'entrada: Ensure the keyboard is fully charged. For wireless connections, try moving closer to the receiver/device or switching to a wired connection.
- La bateria no es carrega: Ensure the USB-C cable is connected correctly to a working USB port.
Si el problema persisteix, poseu-vos en contacte amb el servei d'atenció al client per obtenir més ajuda.
6. Especificacions
| Característica | Detall |
|---|---|
| Marca | LEOBOG |
| Model | AU75 |
| Disposició del teclat | 75% |
| Tecnologia de connectivitat | Bluetooth 5.0, sense fil de 2.4 GHz, USB-C amb cable |
| Tipus de canvi | Mechanical (LEOBOG Nimbus Switch V3) |
| Intercanviable en calent | Yes (3-pin/5-pin) |
| Il·luminació de fons | RGB (16.8 million colors, 16 pre-set effects) |
| Nombre de claus | 82 (approx. for 75% layout) |
| Font d'alimentació | Alimentat per bateria (4000 mAh) |
| Material de claus | PBT |
| Dispositius compatibles | PC, Smart TV, Gaming Console, Tablet, Smartphone |
7. Garantia i Suport
7.1. Informació de la garantia
Your LEOBOG x AULA AU75 Mechanical Keyboard comes with a standard manufacturer's warranty. Please refer to the product packaging or the official LEOBOG website for specific warranty terms and conditions, including coverage period and limitations.
7.2. Atenció al client
For technical assistance, troubleshooting beyond this manual, or warranty claims, please contact LEOBOG customer support through their official website or the retailer from whom you purchased the product. Please have your product model (AU75) and purchase details ready when contacting support.
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