Logitech K800 Keyboard Manual

Logitech K800 Keyboard Manual

Getting started with
Logitech® Wireless Illuminated
Keyboard K800




Your Keyboard is now ready for use.Optional:
For the option of reprogramming your keyboard’s enhanced F-key functions, download the free Logitech® SetPoint™ Software at www.logitech.com/downloads

Keyboard features: F-key usage
User-friendly enhanced F-keys let you launch applications easily. To use the enhanced functions (yellow icons), first press and hold the ‘/ key; second, press the F-key you want to use.

Tip: In the software settings, you can invert the FN mode if you prefer to access directly the enhanced functions without having to press the FN key.
Keyboard features

*Requires SetPoint™ Software (available for download at www.logitech.com/downloads).


1. Application zone
+ F1 Launch Internet browser’
+ F2 Launch e-mail application’
+ F3 Launch Windows Search*’
+ F4 Flip†

2. Convenience zone
+ F5 Backlight down by 25%’
+ F6 Backlight up by 25%’
+ F7 Battery check’
+ F8 Sleep mode

3. Multimedia navigation zone
+ F9 Launch media’
+ F10 Previous track’
+ F11 Play/Pause’
+ F12 Next track

4. Multimedia volume zone
Multimedia volume zone

5. FN key

6. Automatic light sensor (ALS)

7. Battery status indicator

8. Keyboard power switch

* One Touch Search if the SetPoint® software is installed.† Application Switcher if the SetPoint® software is installed.

Keyboard Back-lighting
When you switch on the keyboard, all keys are back-light at full intensity for five seconds. The back-lighting adjusts itself automatically based upon the ambient light in your room.

Keyboard backlighting

To activate backlighting, move your hand over the keyboard, or press a key. There is a proximity sensor in the keyboard that detects motion and switches on backlighting.

Backlighting remains on while you charge the keyboard. When keyboard battery power is very low, the lower battery LED blinks red and backlighting is switched off to conserve battery life.

Press FN + F5 to decrease backlighting and FN + F6 to increase it. There are fi ve levels of illumination: 0%, 25%, 50%, 75%, and 100%. More battery power is used as the level of illumination is increased. After three hours of inactivity or if the keyboard is restarted, the backlighting level returns to automatic adjustment.

Recharging the keyboard
Typically, you can expect about 10 days of battery life before you will need to recharge the keyboard battery.* If the backlighting level is set to 100%, you have about 15 hours of battery life.

To recharge the keyboard, connect it to your computer using the USB recharging cable. A full battery recharge takes about 5 hours and only 3 hours if the keyboard has been switched off.
Recharging the keyboard

* Battery life varies with usage, backlighting level, and computing conditions. Heavy usage usually results in shorter battery life.


Plug it. Forget it. Add to it.
You’ve got a Logitech® Unifying receiver. Now add a compatible wireless keyboard or mouse that uses the same receiver. It’s easy. Just start the Logitech® Unifying software* and follow the onscreen instructions. For more information and to download the software, visit www.logitech.com/unifying

*Go to Start / All Programs / Logitech / Unifying / Logitech Unifying Software

Help with setup
Keyboard is not working

1. Check the Unifying receiver. Also, try changing USB ports.

2. Move closer? Try moving the keyboard closer to the Unifying receiver, or plug the Unifying receiver into the receiver extender cable to bring it closer to the keyboard.

USB ports
3. Check battery level

4. Is the keyboard turned on? Slide the keyboard Off/On switch to the On position. The keyboard Status LEDs should light up.

keyboard turned on

5. Re-establish the connection. Use the Unifying software to reset the connection between the keyboard/mouse and Unifying receiver. Refer to the Unifying section in this guide for more information (p. 13).

6. Restart the computer.


logitech support



© 2010 Logitech. All rights reserved. Logitech, the Logitech logo, and other Logitech marks are owned by Logitech and may be registered. All other trademarks are the property of their respective owners. Logitech assumes no responsibility for any errors that may appear in this manual. Information contained herein is subject to change without notice.620-002354.004


Join the Conversation


  1. I feel very stupid but my logitech 800 keyboard will not type on the screen. I took the ‘battery’ cover off but there is not battery (that’s the feeling stupid part.)

    What can i try???

  2. This is the worst “manual” I’ve ever seen! I love Logitech products and this K800 keyboard is great, BUT the manual is not very helpful!. Isn’t there one that explains the Function keys better?

  3. I bought a new K800 wireless keyboard and had to recharge. Can I leave in the battery charging cable permanently without damaging the batteries?

  4. I am now the “proud” owner of a K800 wireless keyboard. One USB port onto which the former keyboard was plugged into the computer, is now plugged into the K800 keyboard to keep it charged. But another USB port is used for the wireless connection to the PC. Whoopee. Now I need two USB ports for this keyboard, and have yet another wireless dependent connection. I guess it never occurred to Logitech to allow the keyboard to operate using just a USB cable connection. Note that I tried such, but it didn’t work. Tried to find a driver but couldn’t. While this is a very nice keyboard, I really don’t want to tie up two USB ports for it. I will see later if I can do something about this.

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