1. Réamhrá
This manual provides detailed instructions for the A4 Tech FBX50C Rechargeable Keyboard. This keyboard features dual-mode wireless connectivity (Bluetooth and 2.4GHz), a rechargeable battery, and a durable, ergonomic design. It is compatible with Windows, Mac OS, iOS, and Android operating systems.

Íomhá: Barr-síos view of the A4 Tech FBX50C keyboard, showcasing its full layout with function keys and numeric pad.
Príomhghnéithe:
- Bluetooth & 2.4Ghz Dual-Mode Wireless Connectivity
- Compatible with Windows, Mac OS, iOS, and Android OS
- Ceallraí Litiam In-athluchtaithe 300mAh
- Water-resistant design with drain channels
- Íseal-profile chocolate keys for comfortable typing
- Easy switching between up to 4 devices
2. Ábhar Pacáiste
Seiceáil ábhar an phacáiste le do thoil nuair a dhíbhoscaítear é lena chinntiú go bhfuil na hearraí go léir i láthair:
- A4 Tech FBX50C Wireless Keyboard
- USB Type-C Charging Cable (USB-Type C to USB-Type A)
- 2.4G USB Nano-RF Receiver (typically stored in the keyboard's dedicated compartment)

Image: Diagram highlighting key features such as the X-Key structure, the storage compartment for the Nano Receiver, and the integrated rechargeable battery.
3. Socrú
3.1 Muirearú an Mhéarchláir
- Locate the USB Type-C charging port on the keyboard.
- Connect the provided USB Type-C cable to the keyboard and the USB-Type A end to a power source (e.g., computer USB port, USB wall adapter).
- Lasfaidh an solas táscaire luchtaithe. Tógann sé thart ar 2.5 uair an chloig muirear iomlán a ghearradh.
- Once fully charged, the indicator light may change or turn off. Disconnect the cable.
The keyboard is equipped with a built-in 300mAh Lithium Battery, offering up to 8 months of battery life depending on usage and operating conditions.
3.2 Cumhachtú Amach/Amach
Locate the Power On/Off button, typically on the side or back of the keyboard. Slide it to the 'On' position to power on the keyboard and 'Off' to power it down.
3.3 Ag ceangal trí Gan Sreang 2.4GHz
- Retrieve the 2.4G USB Nano-RF Receiver from its storage compartment on the keyboard (if applicable).
- Plug the USB Nano-RF Receiver into an available USB port on your computer or device.
- Ensure the keyboard is powered on. The keyboard should automatically connect to the receiver.
- The 2.4G wireless connection offers a coverage range of up to 10 meters.
3.4 Nascadh trí Bluetooth
The FBX50C supports Bluetooth v5.0, v4.0, and v3.0, allowing connection to up to 3 Bluetooth devices (BT1, BT2, BT3) in addition to the 2.4G connection (2.4G).
- Select a Bluetooth Channel: Press the dedicated Bluetooth channel key (e.g., BT1, BT2, nó BT3) on the keyboard. The indicator light for the selected channel will blink.
- Iontráil Mód Péireála: Press and hold the selected Bluetooth channel key for 3-5 seconds until the indicator light blinks rapidly, indicating it's in pairing mode.
- Cumasaigh Bluetooth ar do Ghléas: Ar do ríomhaire, taibléad, nó fón cliste, téigh go socruithe Bluetooth agus cas air Bluetooth.
- Cuardaigh le haghaidh Gléasanna: Your device will scan for available Bluetooth devices. Select "A4 Tech FBX50C" or a similar name from the list.
- Péireáil Iomlán: Follow any on-screen prompts to complete the pairing process. The indicator light on the keyboard will become solid or turn off once successfully paired.
4. Treoracha Oibriúcháin
4.1 Ag Athrú Idir Gléasanna Ceangailte
The FBX50C keyboard allows for easy switching between up to four connected devices (one 2.4G and three Bluetooth). Simply press the corresponding channel key:
- Brúigh 2.4G to switch to the device connected via the USB Nano-RF Receiver.
- Brúigh BT1 chun aistriú go dtí an chéad fheiste atá ceangailte le Bluetooth.
- Brúigh BT2 chun aistriú go dtí an dara gléas atá ceangailte le Bluetooth.
- Brúigh BT3 to switch to the third Bluetooth-connected device.
4.2 Function Keys (F1-F12) and Multimedia Controls
The keyboard features F1-F12 function keys that also serve as multimedia and internet control keys. To activate the secondary function (e.g., volume control, media playback), press the Fn eochair ag an am céanna leis an eochair F atá uait.
- Fn + F1-F12: Access various multimedia and system functions as indicated by the icons on the keys.
- Eochracha Ilmheáin: Dedicated keys for volume up/down, mute, play/pause, previous/next track.
4.3 Comhoiriúnacht an Chórais Oibriúcháin
The keyboard is designed to be compatible with a wide range of operating systems:
- Windows (Windows 10, Windows 8, etc.)
- Mac OS
- iOS
- OS Android
5. Cothabháil
5.1 Glanadh an Mhéarchláir
Chun cuma agus feidhmiúlacht an mhéarchláir a choinneáil:
- Cinntigh go bhfuil an méarchlár múchta sula ndéantar é a ghlanadh.
- Bain úsáid as éadach bog, saor ó lint beagán dample huisce nó le tuaslagán glantacháin éadrom.
- Seachain taise iomarcach agus ná spraeáil glantaigh go díreach ar an méarchlár.
- The keyboard features specially designed drain channels for water resistance, but it is not fully waterproof. Avoid submerging it in liquids.
5.2 Cúram Ceallraí
To prolong the life of the built-in Lithium battery:
- Seachain an ceallraí a dhíluchtú go hiomlán go minic.
- Muirearaigh an méarchlár go rialta, go háirithe má tá sé le stóráil ar feadh tréimhse fada.
- Stóráil an méarchlár in áit fhionnuar, thirim.

Íomhá: Bun view of the A4 Tech FBX50C keyboard, illustrating the drain channels for water resistance and the anti-slip rubber feet.
6. Fabhtcheartú
If you encounter issues with your A4 Tech FBX50C keyboard, please refer to the following common solutions:
- Níl an méarchlár ag freagairt:
- Cinntigh go bhfuil an méarchlár tiomáinte ar.
- Seiceáil leibhéal na ceallraí agus muirearaigh an méarchlár más gá.
- Verify that the correct connection mode (2.4G or BT1/BT2/BT3) is selected.
- For 2.4G connection, ensure the USB Nano-RF Receiver is securely plugged into your device.
- For Bluetooth connection, ensure Bluetooth is enabled on your device and the keyboard is properly paired. Try re-pairing if necessary.
- Try connecting the keyboard to a different USB port or a different device to rule out device-specific issues.
- Eochracha nach bhfuil ag obair nó ag clóscríobh go mícheart:
- Glan an méarchlár chun aon smionagar a d'fhéadfadh a bheith ag cur bac ar na heochracha a bhaint.
- Ensure the correct language and keyboard layout are selected in your operating system settings.
- Nasc uaineach:
- Bog an méarchlár níos gaire do do ghléas chun cur isteach a laghdú.
- Seachain an méarchlár a chur in aice le gléasanna gan sreang eile a d'fhéadfadh cur isteach a chur faoi deara (m.sh., ródairí Wi-Fi, fóin gan sreang).
- Cinntigh go bhfuil an méarchlár luchtaithe go hiomlán.
7. Sonraíochtaí
| Gné | Sonraigh |
|---|---|
| Múnla | FBX50C |
| Nascacht | Bluetooth (v5.0, v4.0, v3.0) & 2.4GHz Wireless |
| Comhoiriúnacht an Chórais Oibriúcháin | Windows 10, Windows 8, Mac OS, iOS, Android OS |
| Cineál Battery | Insuite i 300mAh Litiam Battery |
| Am Muirir | Thart. 2.5 Uair |
| Saol Battery | Up to 8 Months (may vary) |
| Sreang Range | Up to 10 meters (2.4G) |
| Leagan Amach Méarchláir | QWERTY (English, based on images) |
| Gnéithe Speisialta | Water Resistant (drain channels), Ergonomic, Rechargeable, Low-profile eochracha |
| Ábhar | Silicone Plaisteacha |
| Dath | Dubh/liath |
| Toisí (L x W x H) | 421 x 121 x 20 mm (approximate, based on description) |
| Meáchan | 488g (based on description) / 800g (package weight) |
8. Barántas & Tacaíocht
8.1 Faisnéis Bharántas
Specific warranty details for the A4 Tech FBX50C keyboard are not provided in this manual. Please refer to the warranty card included with your product or contact your retailer for information regarding warranty coverage and terms.
8.2 Tacaíocht do Chustaiméirí
For further assistance, technical support, or inquiries not covered in this manual, please contact A4tech customer service or visit the official A4tech websuíomh le haghaidh acmhainní tacaíochta.