Introducció
This manual provides detailed instructions for the setup, operation, maintenance, and troubleshooting of your A4tech FBX51C Bluetooth & 2.4G Wireless Keyboard. Please read this manual thoroughly before using the product to ensure optimal performance and longevity.
Contingut del paquet
En obrir el paquet, comproveu que hi hagi tots els elements:
- A4tech FBX51C Wireless Keyboard
- USB / USB-C Charging Cable
- USB Extension Cable (may vary by region/package)
- USB / USB-C Mini Quick Connect (may vary by region/package)
- 2.4G USB Nano Receiver (magnetically stored in the keyboard)
Configuració
1. Càrrega del teclat
The FBX51C keyboard features an embedded, rechargeable battery. Before initial use, it is recommended to fully charge the keyboard.
- Locate the USB-C charging port on the upper top left edge of the keyboard, near the ON/OFF switch.
- Connect the provided USB-C charging cable to the keyboard and a power source (e.g., computer USB port, USB wall adapter).
- The power LED indicator will illuminate during charging. It will turn off automatically once the keyboard is fully charged.
2. Encès / apagat
Use the ON/OFF switch located on the upper top left edge of the keyboard to power the device on or off.
3. Connecting via 2.4G Wireless (USB Nano Receiver)
For devices without Bluetooth or for a dedicated connection:
- Locate the 2.4G USB Nano Receiver, which is magnetically stored in a compartment on the keyboard.
- Insert the Nano Receiver into an available USB port on your computer or device.
- Press the 2.4G connection key on the keyboard (usually indicated by a 2.4G icon or specific key combination). The keyboard should connect automatically.
4. Connexió mitjançant Bluetooth
The FBX51C supports up to three Bluetooth connections (BT1, BT2, BT3).
- Assegureu-vos que el teclat estigui encès.
- On the keyboard, press and hold one of the Bluetooth keys (e.g., BT1, BT2, or BT3) for approximately 2-3 seconds until its indicator light begins to blink. This indicates pairing mode.
- Al dispositiu (ordinador, tauleta, telèfon intel·ligent), navegueu fins a la configuració de Bluetooth.
- Cerca available Bluetooth devices and select "A4tech FBX51C" (or similar name) from the list.
- Follow any on-screen prompts to complete the pairing process. The indicator light on the keyboard will stop blinking once successfully paired.
- Repeat these steps for additional Bluetooth devices using BT2 and BT3 keys.
Instruccions de funcionament
1. Canviar entre dispositius
The FBX51C allows seamless switching between connected devices.
- To switch to a 2.4G connected device, press the 2.4G connection key.
- To switch to a Bluetooth connected device, press the corresponding Bluetooth key (BT1, BT2, or BT3) once.
2. Function Keys (Fn Combinations)
The keyboard features multimedia and system function keys. To activate these functions, press and hold the Fn key, then press the desired function key (F1-F12 or other keys with secondary icons).
| Combinació de tecles | Funció |
|---|---|
| Fn + F1 | Reproductor multimèdia |
| Fn + F2 | Baixa el volum |
| Fn + F3 | Puja el volum |
| Fn + F4 | Silenciar |
| Fn + F5 | Pista anterior |
| Fn + F6 | Pista següent |
| Fn + F7 | Reproduir/Pausa |
| Fn + F8 | Atureu-vos |
| Fn + F9 | Web Navegador |
| Fn + F10 | Correu electrònic |
| Fn + F11 | El meu ordinador |
| Fn + F12 | Calculadora |
| Fn + PrtSc | Captura de pantalla |
| Fn + Insereix | Còpia |
| Fn + Suprimir | Enganxa |
3. Indicadors LED
The keyboard features LED indicators for power, CAPS Lock, and connection status. These are typically located above the F4 key.
- LED d'alimentació: Illuminates during charging and turns off when fully charged. May also indicate low battery.
- CAPS Lock LED: Illuminates when CAPS Lock is active.
- Connection LEDs (BT1, BT2, BT3, 2.4G): Blink during pairing mode and remain solid when a connection is established.
Manteniment
1. Neteja del teclat
Per mantenir l'aspecte i la funcionalitat del teclat:
- Power off the keyboard before cleaning.
- Utilitzeu un drap suau i sense pelusa lleugerament dampamb aigua o una solució de neteja suau.
- Eviteu la humitat excessiva i no ruixeu productes de neteja directament sobre el teclat.
- Per a les restes entre les claus, feu servir aire comprimit.
2. Cura de la bateria
To prolong the life of the rechargeable battery:
- Eviteu exposar el teclat a temperatures extremes.
- Charge the keyboard regularly, especially if it will be stored for an extended period.
- No intenteu substituir la bateria interna vosaltres mateixos.
Resolució de problemes
| Problema | Causa possible | Solució |
|---|---|---|
| Keyboard not connecting via 2.4G | Receiver not properly inserted; keyboard not in 2.4G mode; low battery. | Ensure the Nano Receiver is fully inserted into a working USB port. Press the 2.4G key on the keyboard. Charge the keyboard. |
| El teclat no es connecta per Bluetooth | Keyboard not in pairing mode; Bluetooth disabled on device; device already connected to maximum Bluetooth devices; low battery. | Press and hold the desired BT key until it blinks. Ensure Bluetooth is enabled on your device. Remove old Bluetooth connections if necessary. Charge the keyboard. |
| Keys are unresponsive or delayed | Low battery; interference; connection issue. | Charge the keyboard. Move closer to the receiver/device. Re-establish the connection. |
| Accidental "Computer Lock" key presses | Key placement may be unfamiliar. | Familiarize yourself with the keyboard layout. Some operating systems may allow remapping or disabling specific keys, consult your OS documentation. |
Especificacions
- Nom del model: FBX51C
- Tecnologia de connectivitat: Bluetooth, sense fil 2.4G
- Descripció del teclat: Interruptor de tisora
- Dispositius compatibles: PC (Windows, Mac, iOS, Android compatible)
- Característica especial: Low-Profile Key, Multi-Device Switching
- Tipus d'interruptor: Interruptor de tisora
- Pes de l'article: 1.17 lliures
- Dimensions del paquet: 13.5 x 7 x 1.25 polzades
- Fabricant: A4tech
- Data de primera disponibilitat: 8 d'agost de 2024
Producte acabatview Imatge

This image displays the A4tech FBX51C Wireless Keyboard from a top-down, angled perspective. The keyboard is black with white key legends, featuring a full QWERTY layout, a dedicated numeric keypad on the right, and a row of function keys (F1-F12) at the top. Several keys also show secondary multimedia and system shortcut icons, indicating their dual functionality when used with the 'Fn' key. The 'FSTYLER' brand logo is visible on the left side above the function keys, and 'QUIETKEY' is printed on the spacebar.
Garantia i Suport
For warranty information, technical support, or service inquiries, please refer to the documentation provided with your purchase or contact the retailer or manufacturer directly. Specific warranty terms may vary by region and point of purchase.





