1. Introducció
This manual provides essential instructions for the proper setup, operation, maintenance, and troubleshooting of your Fujitsu KB521 Wired USB Keyboard. Please read this manual thoroughly before using the product to ensure optimal performance and longevity. Keep this manual for future reference.
2. Informació de seguretat
- No exposeu el teclat a líquids ni a una humitat excessiva.
- Avoid extreme temperatures. Operate and store the keyboard in a dry environment within typical room temperatures.
- No intenteu desmuntar ni modificar el teclat. Això pot anul·lar la garantia i causar danys.
- Mantingueu el teclat allunyat de camps magnètics forts.
- Feu servir només amb ports USB compatibles.
- Clean the keyboard with a soft, dry cloth. Avoid harsh chemicals or abrasive materials.
3. Contingut del paquet
Verifiqueu que tots els elements siguin presents al paquet:
- Fujitsu KB521 Wired USB Keyboard (1 unit)
- Manual d'usuari (aquest document)
4. Configuració
The Fujitsu KB521 keyboard is designed for simple plug-and-play installation. No additional drivers are typically required for basic functionality on most operating systems.
- Descomprimir el teclat: Traieu amb cura el teclat del seu embalatge.
- Connectar a un port USB: Locate an available USB-A port on your computer (PC, Laptop, Tablet, or Gaming Console). Insert the USB connector of the keyboard firmly into the USB port.
- Reconeixement del sistema: Your operating system should automatically detect and install the necessary drivers for the keyboard. This process may take a few moments.
- Funcionalitat de prova: Open a text editor or any application that accepts text input and type to confirm the keyboard is working correctly.

Figure 4.1: Fujitsu KB521 Wired USB Keyboard. This image displays the full keyboard from a top-down perspective, highlighting its standard QWERTY layout with additional Russian characters and its grey color scheme.
5. Instruccions de funcionament
The Fujitsu KB521 is a standard QWERTY keyboard with a combined Russian/US layout, offering familiar functionality for typing and system control.
- Mecanografia estàndard: Feu servir les tecles alfanumèriques per introduir text.
- Tecles de funció (F1-F12): These keys perform various functions depending on the operating system or application. They may also have secondary functions accessed via the Fn key (if present, though typically not on standard wired keyboards).
- Teclat numèric: The dedicated numeric keypad on the right provides quick entry for numbers and mathematical operations. Ensure Bloq num està actiu.
- Tecles de navegació: Use the arrow keys, Casa, Final, Amunt pàgina, i Pàgina avall keys for navigating documents and web pàgines.
- Canvi d'idioma: For the RU/(US) layout, your operating system settings will determine how to switch between Russian and US input methods. Common shortcuts include Alt + Maj or Ctrl + Maj. Refer to your operating system's documentation for specific instructions.
6. Manteniment i cura
- Neteja: Disconnect the keyboard from your computer before cleaning. Use a soft, lint-free cloth, slightly dampened with water or a mild cleaning solution, to wipe the surface. Do not spray cleaners directly onto the keyboard.
- Eliminació de pols: Feu servir aire comprimit per eliminar la pols i les restes que hi ha entre les tecles.
- Emmagatzematge: When not in use for extended periods, store the keyboard in a clean, dry place, away from direct sunlight and extreme temperatures.
- Eviteu els vessaments: Liquids can severely damage the internal components. Exercise caution when consuming beverages near the keyboard.
7. Solució De Problemes
| Problema | Causa possible | Solució |
|---|---|---|
| El teclat no respon | Connexió USB fluixa, port USB defectuós, problema amb el controlador. |
|
| Les tecles són enganxoses o no responen | Dirt or debris under the keys, liquid spill. |
|
| Incorrect characters appearing | Incorrect language/keyboard layout settings in the operating system. |
|
8. Especificacions
- Model: KB521
- Número de model de l'article: S26381-K521-L119
- Marca: Fujitsu
- Tecnologia de connectivitat: Wired (USB, USB-A)
- Disseny del teclat: QWERTY (RU/US)
- Color: Gris
- Dimensions (L x A x A): Aproximadament 20.31 x 7.4 x 1.81 polzades (51.6 x 18.8 x 4.6 cm)
- Pes de l'article: Aproximadament 4.08 lliures (1.85 kg)
- Dispositius compatibles: PC, Laptop, Tablet, Gaming Console
- Font d'alimentació: Alimentat per USB
9. Garantia i Suport
Fujitsu products are manufactured to high-quality standards. For information regarding warranty coverage, technical support, or service, please refer to the warranty card included with your purchase or visit the official Fujitsu weblloc.
Fabricant: Fujitsu
Weblloc: www.fujitsu.com (Please note: This is a general link; specific regional support pages may vary.)





