1. Ifihan
The Logitech Wireless Touch Keyboard K400 is designed for comfortable control of your TV-connected computer. It features a full-size keyboard layout and a large, integrated multi-touch touchpad, providing a seamless navigation experience from your couch. This manual provides essential information for setting up, operating, maintaining, and troubleshooting your keyboard.

Aworan: Angled view of the Logitech Wireless Touch Keyboard K400, highlighting its compact design with a full keyboard and a large, integrated multi-touch touchpad on the right side.
2. Eto
2.1 Package Awọn akoonu
- Keyite Keyboard Fọwọkan Alailowaya K400
- Logitech Unifying olugba
- Awọn batiri AA 2 (ti a ti fi sii tẹlẹ)
- Olumulo iwe aṣẹ
2.2 Fifi sori batiri
The keyboard comes with two AA batteries pre-installed. If you need to replace them:
- Wa ideri kompaktimenti batiri ni apa isalẹ ti keyboard.
- Gbe ideri kuro.
- Insert two new AA batteries, ensuring correct polarity (+/-).
- Rọpo ideri iyẹwu batiri.
2.3 Connecting the Unifying Receiver
Olugba Iṣọkan Logitech n pese asopọ alailowaya 2.4 GHz ti o gbẹkẹle.
- Locate the tiny Logitech Unifying receiver, typically stored inside the battery compartment or packaged separately.
- Plug the Unifying receiver into an available USB port on your computer or TV-connected device.
- The keyboard should automatically connect. If not, press any key to wake it up.

Aworan: Oke-isalẹ view of the Logitech Wireless Touch Keyboard K400, providing a clear perspective of the keyboard layout and the integrated touchpad.
2.4 System Awọn ibeere
The Logitech Wireless Touch Keyboard K400 is compatible with the following operating systems:
- Windows XP
- Windows Vista
- Windows 7
- Windows 8
3. Awọn ilana Iṣiṣẹ
3.1 Keyboard Awọn iṣẹ
The keyboard features quiet, low-profile keys for comfortable typing. It includes dedicated hotkeys and media keys for quick access to common functions.
- Awọn iṣakoso iwọn didun: Dedicated keys for volume up, volume down, and mute are located above the function keys.
- Sisisẹsẹhin Media: Control media playback with dedicated keys for play/pause, previous track, and next track.
- Windows Hotkeys: Access Windows-specific functions with dedicated keys.
3.2 Touchpad Usage
The large 3.5-inch multi-touch touchpad allows for intuitive navigation.

Image: A diagram illustrating various touchpad gestures, including single-finger pointing, two-finger vertical/horizontal scrolling, and Windows 8 edge gestures for enhanced navigation.
- Ntọkasi: Touch and slide one finger anywhere on the touchpad to move the onscreen pointer for quick navigation and precise cursor control.
- Yi lọ: Drag two fingers up or down to easily scroll through web pages, documents, or lists.
- Títẹ̀: Use the integrated left and right click buttons below the touchpad, or tap the touchpad surface for a left click.
- Windows 8 Gesture Support: The keyboard supports one-touch Windows 8 shortcut keys. For example, swipe one finger from the left edge of the touchpad to switch applications, or from the right edge to bring up Windows 8 Charms.

Image: A person comfortably using the Logitech Wireless Touch Keyboard K400 from a couch, demonstrating its utility for controlling a laptop connected to a television, ideal for home entertainment setups.
4. Itọju
4.1 Ninu Keyboard
Láti lè máa ṣiṣẹ́ àti ìrísí keyboard rẹ:
- Lo asọ asọ, ti ko ni lint die-die dampened pẹlu omi tabi kan ìwọnba ninu ojutu.
- Yago fun lilo abrasive ose, nkanmimu, tabi aerosol sprays taara lori awọn keyboard.
- Fun eruku ati idoti laarin awọn bọtini, lo afẹfẹ fisinuirindigbindigbin.
4.2 batiri Life
The keyboard is designed for extended battery life. When the battery indicator light turns red, it's time to replace the batteries. Refer to section 2.2 for battery replacement instructions.
5. Laasigbotitusita
5.1 No Connection or Intermittent Connection
- Ṣayẹwo awọn batiri: Rii daju pe awọn batiri ti fi sori ẹrọ daradara ati pe wọn ni idiyele ti o to. Rọpo ti o ba wulo.
- Isopọ olugba: Make sure the Unifying receiver is securely plugged into a working USB port. Try a different USB port.
- Ijinna ati Idiwo: Ensure the keyboard is within the 10-meter (33 feet) wireless range and there are no large metal objects between the keyboard and the receiver that could interfere with the signal.
- Tun ẹrọ so pọ: Ti awọn ọran ba tẹsiwaju, o le nilo lati tun sọ keyboard pọ pẹlu olugba Iṣọkan nipa lilo sọfitiwia Iṣọkan Logitech (wa fun igbasilẹ lati ọdọ osise Logitech webaaye).
5.2 Touchpad Not Responding
- Paadi ọwọ mimọ: Rii daju pe oju iboju ifọwọkan jẹ mimọ ati laisi idoti tabi ọrinrin.
- Awọn ọran Awakọ: Ensure your operating system's drivers are up to date. Visit Logitech's support webojula fun awọn titun awakọ.
5.3 Keys Not Working
- Ṣayẹwo Asopọmọra: Verify the wireless connection as described in section 5.1.
- Awọn bọtini mimọ: Rii daju pe ko si idoti ti o wa labẹ awọn bọtini.
6. Awọn pato
| Brand | Logitech |
| Nọmba awoṣe | 920-003070 (K400) |
| Asopọmọra Technology | Wireless (2.4 GHz radio frequency) |
| Alailowaya Ibiti | Titi de awọn mita 10 (33 ẹsẹ) |
| Ese Touchpad | 3.5-inch multi-touch touchpad |
| Orisun agbara | 2 AA Alkaline batiri |
| Ibamu Awọn ọna ṣiṣe | Windows XP, Windows Vista, Windows 7, Windows 8 |
| Awọn iwọn (L x W x H) | 35.31 x 13.59 x 2.39 cm (13.9 x 5.35 x 0.94 inches) |
| Iwọn | 360.04 g (0.79 lbs) |
| Ohun elo | Ṣiṣu |
7. Atilẹyin ọja ati Support
7.1 atilẹyin ọja Alaye
A ṣe àwọn ọjà Logitech ní ìbámu pẹ̀lú àwọn ìlànà tó ga jùlọ. Fún àlàyé nípa àtìlẹ́yìn ẹ̀kúnrẹ́rẹ́, jọ̀wọ́ wo káàdì àtìlẹ́yìn tó wà nínú ọjà rẹ tàbí kí o lọ sí Logitech tó jẹ́ ti ìjọba. webojula.
7.2 Onibara Support
If you encounter any issues not covered in this manual or require further assistance, please visit the official Logitech support webojula ni support.logi.com. You can find FAQs, troubleshooting guides, and contact information for technical support.





