logitech K800 Wireless Illuminated Keyboard User Guide

logitech K800 Wireless Illuminated Keyboard

www.logitech.com/support/k800

WHAT’S IN THE BOX

SET UP

logitech.com/options

KEYBOARD FEATURES

1. Application zone
   Fn + F1 Launch Internet browser
   Fn+ F2 Launch e-mail application
   Fn+ F3 Launch Search
   Fn+ F4 Flip

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

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

4. Multimedia volume zone Mute
   Volume down
   Volume up
   Calculator

5. Fn key

6. Automatic light sensor (ALS)

7. Battery status indicator

8. Keyboard power switch.

RECHARGING

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

UNIFYING

Logitech® Unifying technology connects up to six compatible Logitech mice and keyboards to the same receiver, using only one USB port for multiple devices.
To learn more, visit: www.logitech.com/support/unifying

TROUBLESHOOTING

Keyboard not working?

1. Slide the keyboard’s Off/On switch to Off and then On. The keyboard’s battery status indicator LEDs should light up.
2. Confirm that the keyboard is charged. The battery status indicator is red when the battery is low.
3. Try plugging the Unifying receiver into another USB port.
4. Move the Unifying receiver closer to the keyboard.
5. Try reconnecting the keyboard and Unifying receiver using the Logitech Unifying software (see the Unifying section).
6. Restart the computer.

BATTERY REMOVAL INFORMATION

1. Remove 1 screw and battery door.
2. Remove bottom panel.
3. Remove 17 screws.
4. Remove top case.
5. Remove 6 screws.
6. Remove keyframe, light guide panel and metal plate.
7. Remove tape, then disconnect the battery cables from the main circuit board, remove battery from the bottom case.
8. Dispose of the battery and product according to local laws.

© 2020 Logitech, Logi and the Logitech Logo are trademarks or registered trademarks of Logitech Europe S.A. and/or its affiliates in the U.S. and other countries. Logitech assumes no responsibility for any errors that may appear in this manual. Information contained herein is subject to change without notice.

Specs & Details

Dimensions

Keyboard

• Width : 19.17 in (487 mm)
• Height : 7.68 in (195 mm)
• Depth : 1.06 in (27 mm)
• Weight (without batteries) : 26.46 oz (750 g)

USB Receiver

• Width : 0.57 in (14.4 mm)
• Height : 0.74 in (18.7 mm)
• Depth : 0.24 in (6.1 mm)
• Weight : 0.06 oz (1.8 g)

Warranty Information

3-year limited hardware warranty

Part Number

• 920-002359

California Warnings

• WARNING: Proposition 65 Warning

FAQ – Frequently Asked Questions

My NumPad/KeyPad is not working, what should I do?****

– Make sure that the NumLock key is enabled. If pressing the key once doesn’t enable NumLock, press and hold the key for five seconds.

– Verify that the correct keyboard layout is selected in Windows Settings and that the layout matches your keyboard.
– Try enabling and disabling other toggle keys such as Caps Lock, Scroll Lock, and Insert while checking if the number keys work on different apps or programs.
– Disable  Turn on Mouse Keys :
1. Open the  Ease of Access Center  — click the  Start  key, then click  Control Panel > Ease of Access and then  Ease of Access Center.
2. Click  Make the mouse easier to use.
3. Under  Control the mouse with the keyboard , uncheck  Turn on Mouse Keys.
– Disable  Sticky Keys, Toggle Keys & Filter Keys:
1. Open the  Ease of Access Center  — click the  Start  key, then click  Control Panel > Ease of Access and then  Ease of Access Center.
2. Click  Make the keyboard easier to use.
3. Under  Make it easier to type , make sure all checkboxes are unchecked.
Verify the product or receiver is connected directly to the computer and not to a hub, extender, switch, or something similar.
– Make sure the keyboard drivers are updated. Click here to learn how to do this in Windows.
– Try using the device with a new or different user profile.
– Test to see if the mouse/keyboard or receiver on a different computer.

External keyboard shortcuts for iPadOS****

You can view the available keyboard shortcuts for your external keyboard. Press and hold the  Command  key on your keyboard to display the shortcuts.

Change modifer keys of external keyboard on iPadOS****

You can change the position of your modifier keys at any time. Here’s how:
– Go to  Settings  >  General  >  Keyboard  >  Hardware keyboard  >  Modifier Keys.

Toggle between multiple languages on iPadOS with an external keyboard****

If you have more than one keyboard language on your iPad, you can move from one to the other using your external keyboard. Here’s how:
– Press  Shift  +  Control  +  Space bar.
– Repeat the combination to move between each language.

Warning message when Logitech device is connected to iPadOS****

When you connect your Logitech device, you might see a warning message.
If this happens, make sure to connect only the devices you’ll be using. The more devices that are connected, the more interference you might have between them.
If you are having connectivity issues, disconnect any Bluetooth accessories that you’re not using. To disconnect a device:
– In  Settings  >  Bluetooth , tap the information button next to the device name, then tap  Disconnect.

Cleaning your Logitech device****

In the event your Logitech device needs cleaning we have some recommendations:

Before You Clean
– If your device is cabled, please unplug your device from your computer first.
– If your device has user-replaceable batteries, please remove the batteries.
Be sure to switch off your device and then wait 5-10 seconds before starting to clean.
– Don’t put cleaning liquids directly on your device.
– For devices that are not waterproof, please keep moisture to a minimum and avoid any liquid dripping or seeping into the device
– When using cleaning sprays, spray the cloth and wipe — do not spray the device directly. Never submerge the device in a liquid, cleaning or otherwise.
– Don’t use bleach, acetone/nail polish remover, strong solvents, or abrasives.

Cleaning Keyboards
– To clean the keys, use regular tap water to lightly moisten a soft, lint- free cloth and gently wipe down the keys.
– Use compressed air to remove any loose debris and dust between the keys. If you do not have compressed air available, you could also use cold-air from a hair-dryer.
– You can also use fragrance-free disinfecting wipes, fragrance-free anti- bacterial wet wipes, makeup removing tissue, or alcohol swabs containing less than 25% concentration of alcohol.
– Don’t use bleach, acetone/nail polish remover, strong solvents, or abrasives.

Cleaning Mice or Presentation Devices
– Use tap water to lightly moisten a soft, lint-free cloth and gently wipe down the device.
– Use lens cleaner to lightly moisten a soft, lint-free cloth and gently wipe down your device.
– You can also use fragrance-free disinfecting wipes, fragrance-free anti- bacterial wet wipes, makeup removing tissue, or alcohol swabs containing less than 25% concentration of alcohol.
– Don’t use bleach, acetone/nail polish remover, strong solvents, or abrasives.

Cleaning Headsets
– Plastic parts (headband, mic boom, etc.): it is recommended to use fragrance-free disinfecting wipes, fragrance-free anti-bacterial wet wipes, makeup-removing tissue, or alcohol swabs containing less than 25% concentration of alcohol.
– Leatherette earpads: it is recommended to use fragrance-free disinfecting wipes, fragrance-free anti-bacterial wet wipes, or make-up removal tissue. Alcohol wipes can be used on a limited basis.
– For the braided cable: it is recommended to use anti-bacterial wet wipes. When wiping cables and cords, grip the cord mid-way and pull towards the product. Don’t forcefully pull the cable away from the product or away from the computer.
– Don’t use bleach, acetone/nail polish remover, strong solvents, or abrasives.

Cleaning Webcams
– Use tap water to lightly moisten a soft, lint-free cloth and gently wipe down the device.
– Use lens cleaner to lightly moisten a soft, lint-free cloth and gently wipe down the webcam lens.
– Don’t use bleach, acetone/nail polish remover, strong solvents, or abrasives.

If Your Device Still Isn’t Clean
– In most cases, you can use isopropyl alcohol (rubbing alcohol) or fragrance- free anti-bacterial wipes and apply more pressure when cleaning. Before using rubbing alcohol or wipes, we suggest you test it first in an inconspicuous area to make sure it doesn’t cause discoloration or remove any printing on your device.
– If you’re still not able to get your device clean, please consider contacting us.

COVID-19
Logitech encourages users to properly sanitize their products in accordance with guidelines put out by the World Health Organization and the Centers for Disease Control guidelines.

Wireless product not working properly when also using a USB 3.0 device****

When using a USB 2.0 2.4GHz wireless peripheral device (such as a mouse, keyboard, or headphones) with a PC that also has a USB 3.0 peripheral device plugged in, you may experience erratic operation caused by interference. This is especially likely to happen when using USB 3.0 remote hard drives or flash drives.

This interference may result in:
– Delayed response to mouse or keyboard inputs
– Missing keyboard characters or mouse commands
– Decreased operating distance between the USB 2.0 wireless device and its receiver

There are some techniques that can help early adopters of USB 3.0 to mitigate potential problems with their existing 2.4GHz wireless devices:

– If your PC has multiple USB 2.0 connectors available, separate your USB 3.0 and USB 2.0 receivers by as much distance as possible. For example, if your PC has a choice of USB 2.0 connectors, use the one on the opposite side of the PC from the USB 3.0 connector.
– Position your USB 2.0 receiver as close as possible to your wireless peripheral (mouse, keyboard, headphones, etc.).
– Use a standard, USB-extender cable to position your USB 2.0 wireless receiver as far away as possible from your USB 3.0 connector.

A USB-extender cable is available for Logitech customers who are experiencing this problem (click here for more information).

NOTE:  A USB 3.0 connector sometimes referred to as Super Speed USB or SS, normally has a blue plastic insert in the connector. Unlike a USB 2.0 connector which has 4 pins within the connector, a USB 3.0 connector has 9 pins.

Move your USB 2.0 wireless receiver to the opposite side of your computer:

Make sure your USB 2.0 wireless receiver is in the USB 2.0 connector closest to your wireless peripheral:

Use a USB extended cable to position your wireless receiver as far away from your USB 3.0 peripheral as possible:

Windows 8 and Windows 10 product support and device compatibility****

To check if your Logitech product works with Windows 8 or Windows 10, first select the appropriate product category from the list below.
– Mice and keyboards
– Tablet and laptop accessories
– Gaming products
– Harmony remotes
– Speakers
– Headphones and headsets
– Smart radios
– Squeezebox network music players
– Alert security cameras
– WiLife security cameras
– Webcams

US, US International and United Kingdom keyboard layouts****

See the following for generic English-language keyboard layouts:
– US
– US International
– United Kingdom
—————————-
US

US International

United Kingdom

My Unifying mouse or keyboard wakes the computer even when it is set not to****

Symptom
After disabling the ability to wake-up the system in Windows Device Manager, the Unifying mouse or keyboard still brings the system out of sleep mode.

Solution
Even if you bought a mouse-only or keyboard-only product, the Unifying receiver that came with it still enumerates for both the mouse and keyboard interfaces.

Example
If you have two mice attached, then you would need to uncheck the “Allow this device to wake the computer” option for both mice plus a keyboard in the Windows Device Manager.
Use the process below to identify and configure the Unifying devices to not wake up the system in Windows Device Manager.

Changing wake-up settings in the Device Manager
To change the wake-up settings in Windows Device Manager, you’ll need to launch it through Computer Management and then make your selections. Here’s how:
1. Click Start, right-click  Computer , and then click  Manage.
2. Click Device Manager in the navigation pane on the left.

3. Select and expand either the “Keyboards” or “Mice and other pointing devices” category.
4. Right-click on the first entry and go to Properties > Details tab > Hardware IDs under the Property section.
5. Make sure the Value section contains:  HID\VID_046D &PID_C52B. If it doesn’t, click  Cancel  and open the next mouse or keyboard entry in the list.

6. Select  the “Power Management” tab and uncheck the “Allow this device to wake the computer” check box.

7. Repeat the same steps for all entries in both the “Keyboards” and “Mice and other pointing devices” categories.

Customizing my K800 keyboard with Logitech SetPoint Software****

This tutorial shows you how to use these features in the Logitech SetPoint Mouse and Keyboard Software:
– Customizing programmable keys
– Programming function keys
– Checking battery status
– Disabling keys
– Using the Unifying Software
– Keyboard illumination settings

Customizing programmable keys:
To assign keystrokes to one key or change key assignments:
1. Launch SetPoint (Start > Programs > Logitech > Mouse and Keyboard > Mouse and Keyboard Settings).
NOTE:  If you don’t have SetPoint installed, you can download it from the K800 Downloads Page.
2. Click the  My Keyboard  tab at the top of the SetPoint Settings window.
NOTE:  If you have more than one Logitech keyboard and the K800 isn’t currently displayed, click the down-arrow icon next to the current product name and select  Wireless Illuminated Keyboard K800  from the drop-down menu that displays.
3. Choose the hot key you want to customize in the  Select Hot Key field,
NOTE:  If the  Hot Key Settings  screen isn’t showing, click the lightning-bolt.icon on the left toolbar to display it.

4. Choose the task you want to assign from the  Select Task  list,
NOTE:  You can click the “?” icon next to Hot  Key Settings  at the top for detailed descriptions of these options.

5. Click  Apply  to save your settings and then  OK  to close SetPoint.

Programming function keys
The function keys, also known as F-keys, are the keys labeled F1 through F12 above the number keys on your K800. Like the programmable keys, these keys can also be programmed to perform certain functions.
NOTE:  To use a function key, press the FN key (to the right of the spacebar and Alt key) at the same time as the function key you want to program.

To program a function key:
1. Launch SetPoint (Start > Programs > Logitech > Mouse and Keyboard > Mouse and Keyboard Settings).
NOTE:  If you don’t have SetPoint installed, you can download it from the K800 Downloads Page.
2. Click the  My Keyboard  tab at the top of the SetPoint Settings window.
NOTE:  If you have more than one Logitech keyboard and the K800 isn’t currently displayed, click the down-arrow icon next to the current product name and select  Wireless Illuminated Keyboard K800  from the drop-down menu that displays.
3. Click the “F” icon on the left toolbar to display the  F Key Settings screen
4. In the  Select F Key  field, choose the function key you want to customize.
NOTE:  The pictures in the list match those shown above the numbers on the function keys. For example:  My Home  is F1.

5. Choose the task you want to assign to the chosen function key from the Select Task  list.
NOTE:  You can click the “?” icon by  F Key Settings  at the top for detailed descriptions of these options

6. Click  Apply  to save your settings and then  OK  to close SetPoint.
If you prefer, you can make these programmed functions happen without having to hold down the FN key when you press an F-key. (Instead, you’ll have to hold down the FN key for the default F-key functions.) To make this change, select the  Swap F key functions  check box shown above

Checking battery status
To check the battery status of your keyboard:
1. Launch SetPoint (Start > Programs > Logitech > Mouse and Keyboard > Mouse and Keyboard Settings).
NOTE:  If you don’t have SetPoint installed, you can download it from the K800 Downloads Page.
2. Click the  My Keyboard tab  at the top of the SetPoint Settings window.
NOTE:  If you have more than one Logitech keyboard and the K800 isn’t currently displayed, click the down-arrow icon next to the current product name and select  Wireless Illuminated Keyboard K800  from the drop-down menu that displays.
3. Click the battery icon on the left toolbar to display the  Keyboard Batteries  screen and check your battery status.
4. Click  OK  to exit SetPoint.

Disabling keys
To disable keys you don’t use:
1. Launch SetPoint (Start > Programs > Logitech > Mouse and Keyboard > Mouse and Keyboard Settings).
NOTE:  If you don’t have SetPoint installed, you can download it from the K800 Downloads Page.
2. Click the  My Keyboard  tab at the top of the SetPoint Settings window.
NOTE:  If you have more than one Logitech keyboard and the K800 isn’t currently displayed, click the down-arrow icon next to the current product name and select  Wireless Illuminated Keyboard K800  from the drop-down menu that displays.
3. Click the disabling icon on the left toolbar to display the  Keyboard Inactive Keys  screen.
4. Select the checkbox next to any key you want to disable.
NOTE:  You can click the “?” icon next to  Keyboard Inactive Keys  at the top for detailed descriptions of these options.
5. Click  Apply  to save your settings and then  OK  to exit SetPoint.

Using the Unifying Software
Your K800 ships with Logitech Unifying Software. This lets you use up to six compatible Logitech products with a single Unifying USB Receiver. With the Unifying software you can:
– Pair and un-pair Unifying devices
– Update software and firmware
– Create report logs

To launch the Unifying software:
1. Launch SetPoint (Start > Programs > Logitech > Mouse and Keyboard > Mouse and Keyboard Settings).
NOTE:  If you don’t have SetPoint installed, you can download it from the K800 Downloads Page.
2. Click the  My Keyboard  tab at the top of the SetPoint Settings window.
NOTE:  If you have more than one Logitech keyboard and the K800 isn’t currently displayed, click the down-arrow icon next to the current product name and select  Wireless Illuminated Keyboard K800  from the drop-down menu that displays.
3. Click the Unifying icon on the left toolbar to display the  Unifying tab.
4. Click the  Open Unifying Software  button to launch the software.

To pair your Unifying receiver with more than one Unifying device. follow the on-screen instructions given in the Logitech Unifying Software window. To use the other features of the Unifying software, click the  Advanced  button.

Keyboard illumination settings
To change the keyboard illumination settings:
1. Launch SetPoint (Start > Programs > Logitech > Mouse and Keyboard > Mouse and Keyboard Settings).
NOTE:  If you don’t have SetPoint installed, you can download it from the K800 Downloads Page.
2. Click the  My Keyboard  tab at the top of the SetPoint Settings window.
NOTE:  If you have more than one Logitech keyboard and the K800 isn’t currently displayed, click the down-arrow icon next to the current product name and select  Wireless Illuminated Keyboard K800  from the drop-down menu that displays.
3. Click the light-bulb icon on the left toolbar to display the  Keyboard Illumination Settings  screen.
4. Select your settings and then click Apply to save them.

NOTE:  You can click the “?” icon at the top for detailed descriptions of these settings.
5. Click OK to exit SetPoint.

My K800 hotkeys do not work as programmed****

To verify your keyboard hot key assignments:
1. Launch SetPoint (Start > Programs > Logitech > Mouse and Keyboard > Mouse and Keyboard Settings).
NOTE:  If you don’t have SetPoint installed, you can download it from the K800 Downloads Page.
2. Click the My Keyboard tab at the top of the SetPoint Settings window.
NOTE:  If you have more than one Logitech keyboard and the K800 isn’t currently displayed, click the down-arrow icon next to the current product name and select Wireless Illuminated Keyboard K800 from the drop-down menu that displays

3. Choose the key you want to customize in the Select Hot Key field

4. Choose the task you want to assign from the Select Task list.
NOTE:  You can click the “?” icon next to Hot Key Settings at the top for detailed descriptions of these options.

5. Click Apply to save your settings and then OK to close SetPoint.

My K800 cannot be customized using Logitech software (SetPoint)****

Normally, you should be able to customize your K800 settings in the Logitech SetPoint Mouse and Keyboard Software using the My Keyboard tab. If this tab isn’t displayed, you’ll need to re-install SetPoint.

NOTE:  Your keyboard will display in SetPoint as Wireless Illuminated Keyboard K800. If you have more than one Logitech keyboard and the K800 isn’t currently displayed, click the down arrow next to the current product name and select the K800 from the drop-down menu that displays.
SetPoint with My Keyboard T ab

SetPoint without My Keyboard Tab

To uninstall SetPoint:
– Windows XP
– Windows Vista and Windows 7

Windows XP:****

1. Go to  Add or Remove Programs.
– Start menu view: Start > Control Panel > Add/Remove Programs
– Classic start menu view: Start > Settings >Control Panel > Add/Remove Programs
2. Select  Logitech SetPoint  from the list of programs displayed.
3. Click the  Change / Remove  button and follow the on-screen instructions to uninstall SetPoint.
4. Download and install the latest version of SetPoint from the K800 Downloads Page.
NOTE: You may need to reboot your system after SetPoint has been installed.
5. After your system restarts, open SetPoint to verify that the  My Keyboard  tab is available.

If the My Keyboard tab is still missing:
1. Exit SetPoint by right-clicking on the SetPoint icon in the system tray at the bottom right corner of your screen next to the clock.

2. Select  Exit.
3. Click the  Windows Start  button.
4. Choose  Run.
5. Type %windir% in the  Run  dialog box.

6. Double-click the  System32  folder to open it.
7. Double-click the  drivers  folder.
8. Rename the file wdf01000.sys to wdf01000.bak.
9. Re-install SetPoint.WARNING:
 10. Before you reboot, check to make sure the wdf01000.sys file is present in the  drivers  folders. If you reboot without this file, it may prevent some of your hardware — including mice and keyboards — from working properly.
11. If the wdf01000.sys file is not present, change wdf01000.bak back to wdf01000.sys.
12. Reboot the computer.
13. After your system restarts, open SetPoint to verify that the  My Keyboard  tab is present.

Windows Vista and Windows 7****

1. Go to  Uninstall  a program.
– Start menu view: Start > Control Panel > Uninstall a program
– Classic start menu view: Start > Settings >Control Panel > Programs and Features
2. Select  Logitech SetPoint  from the list of programs displayed.
3. Click the Uninstall button highlighted above and follow the on-screen instructions to uninstall SetPoint.
4. Download and install the latest version of SetPoint from the K800 Downloads Page.
NOTE:  You may need to reboot your system after SetPoint has been installed.
After your system restarts, open SetPoint to make sure the  My Keyboard tab is available.

Additional information:
If you’re still having the same issue, see Knowledge Base article 18009 for how to contact Logitech Technical Support.

My K800 keyboard is not working****

This issue is most likely a lost connection. The connection between the keyboard and USB receiver can be lost for several reasons, including:

– Low battery charge
– Moving the USB receiver from one USB port to another
– Moving the USB receiver to another computer
– Plugging the USB receiver into a USB hub, KVM switch or other unsupported device (NOTE: Your USB receiver must be plugged directly into your computer.)
– Using your wireless keyboard on metal surfaces
– Radio frequency (RF) interference from other sources, such as:

– Wireless speakers
– Computer power supplies
– Monitors
– Cell phones
– Garage door openers

Try to rule out any of these problem sources that might be affecting your keyboard before you reconnect it.

Before reconnecting your K800
Before you connect your K800 again:
1. Make sure the batteries in your K800 are fully charged.
2. Make sure your keyboard is turned on. For instructions on how to turn your keyboard on and off, see answer null.
3. Make sure the USB receiver is securely plugged directly into a working USB port on your computer.
4. Turn your computer on.

Follow the process below to reconnect your keyboard
Reconnecting your K800
To reconnect your K800:
1. Download and install the correct version of the Logitech SetPoint mouse and keyboard software from the K800 Downloads page.
2. Launch the Logitech Unifying Software (which was included in SetPoint) from Start > Programs > Logitech > Unifying > Logitech Unifying Software.
3. When the Logitech Unifying Software Welcome screen shown below displays, click Next to continue.

4. Follow the on-screen instructions to turn your K800 off and then back on.
When your K800 is detected, you’ll see this confirmation message:

5. Type a test message in the text field to verify the keyboard is working.
6. Once you’ve confirmed the keyboard is working, choose “Yes” and then click Next to continue.
7. Click Finish to exit the Logitech Unifying Software. Your K800 should now be connected.

Turning my K800 KEYBOARD on and off****

To turn your K800 Keyboard on:
1. Locate the ON/OFF switch at the top right-side of your keyboard.
2. Slide the switch from “OFF” to “ON”.
NOTE:  The switch will have a green background showing on the left side and one or more of the battery indicator lights will be lit to the left of the switch, depending on your current battery level.
To turn your K800 Keyboard off:
1. Locate the ON/OFF switch at the top right-side of your keyboard.
2. Slide the switch from “ON” to “OFF”.
NOTE:  The switch will have a red background showing on the right side and none of the battery indicator lights will be lit to the left of the switch

K800 Num Lock and Caps Lock indicators****

Caps Lock indicators
On the K800 Keyboard itself, you can determine if Caps Lock is on by checking the green indicator light in the top left corner of the Caps Lock button. If it is lit, Caps Lock is on and all of the letters you type will appear in uppercase.

You can also determine if your K800 has Caps Lock on through the on-screen notification.
NOTE:   You need to have Logitech SetPoint software installed in order to receive on-screen notifications. If you don’t have SetPoint installed, you can download it from the K800 Downloads Page.

To determine on-screen if your K800 has Caps Lock on:
  Caps Lock On.  When you press the Caps Lock button and see the following “Caps Lock On” message, all of the letters you type will appear in uppercase.
Caps Lock Off. When you press the Caps Lock button and see the following “Caps Lock Off” message, unless you use the Shift button, all of the letters you type will appear in lowercase.

Num Lock indicator
With your K800 Keyboard, you can determine if Num Lock is on through the on- screen notification.
NOTE: You need to have Logitech SetPoint software installed in order to receive on-screen notifications. If you don’t have SetPoint installed, you can download it from the K800 Downloads Page.

To determine on-screen if Num Lock is on:
Num Lock On. When you press the  Num Lock key at the top left of the keypad and see the following “Num Lock On” message, using the keypad enters numbers.
Num Lock Off. When you press the  Num Lock  key above and to the left of your keypad and see the following “Num Lock Off” message, the numbered keys on the keypad act as direction keys moving your cursor in the direction of the arrows printed on them.

Using the FN and F1-F12 keys on my K800****

Your K800 Keyboard’s function keys, or F-keys, have two modes:
– Normal. By default, the function keys perform tasks based on the operating system and application you’re using. To use a function key in its normal state, you press it by itself.
– Enhanced. The function keys are pre-programmed to perform certain tasks when you press them at the same time as the FN key (shown below). For example: Press and hold the  FN  key (A) and the  F1  key (B) to launch your internet browser.

Using the Logitech SetPoint Mouse and Keyboard Software, you can change the pre-programmed function for each key. You can also swap the modes so the enhanced functions work without having to press the  FN  key. See the “Programming function keys” section of answer null for instructions.

The enhanced functions are listed below:
Key : Function
1. Application zone
F1 Launch internet browser
F2 Launch email application
F3 Launch Windows Search
F4 Application switcher
2. Convenience zone
F5 Reduce backlight by 25%
F6 Increase backlight by 25%
F7 Battery check
F8 Sleep mode
3. Multimedia navigation zone
F9 Launch media player
F10 Previous track
F11 Play/Pause
F12 Next track
4. Multimedia volume zone
Mute
Volume down
Volume up
Calculator
Additional features
5. FN key
6. Automatic light sensor (ALS)
7. Battery status indicator
8. Keyboard power switch
*Requires SetPoint

Connecting a second Unifying device to my Unifying receiver****

Your K800 Unifying USB receiver can be connected to up to six Unifying Logitech mice and keyboards. You can tell if your devices are Unifying because they will have this logo:

connect additional Unifying devices to your Unifying USB receiver:
1. Download Logitech SetPoint Mouse and Keyboard Software, if you don’t already have it installed. You can download SetPoint from the K800 Downloads Page.
2. Launch the Logitech Unifying Software (Start > Programs > Logitech > Unifying > Logitech Unifying Software).
3. On the Welcome window that displays, click  Next :
For the Unifying software to detect your device, you’ll need to turn it on. Follow the on-screen instructions (shown below) to turn your device off and then back on.
4. When your device is detected, you’ll see a confirmation message as shown below. 5. Type a test message in the text field to make sure the keyboard works.
NOTE:  If the keyboard doesn’t work right away, wait a minute to see if it connects. 6. If it doesn’t, select  No  and then click  Next  to restart the pairing process from Step 1 above.
7. Select  Yes  and then click  Next.
8. Click  Finish  to exit the Logitech Unifying Software. Your device should now be connected.

K800 compatibility with KVM switches and hubs****

Manufacturers implement keyboard and mouse support in various, non-standard ways. KVM switches may affect the functionality of your K800.
Other third party devices that may interfere with communication between your K800 and your computer are:
– KVM switch boxes
– Port Replicators
– Docking Stations
– USB Hubs

My K800’s backlight stays on****

Normally, your K800’s backlight will turn off after 10 to 15 seconds, or whenever you’ve set it to go off.

Sometimes though, the keyboard may stay lit longer. This often happens when the keyboard is moved to a different location on your desk or to another desk entirely.

The reason for this is that the keyboard has a built-in system to detect your hands. When moved, it can take some time for the keyboard to perform this detection again.

Allow 3-5 minutes for your keyboard to go through its detection cycle. Then, the backlight should begin to switch off again in the amount of time expected.

K800 operating distance****

In ideal situations, the K800 can operate up to 30 feet (10 meters) with the receiver in clear sight of the keyboard and mouse.

If you are not getting this distance:
– Replace the batteries with a fresh set.
– Move devices such as cell phones, radios, wireless routers, microwaves, and other devices that emit radio waves or could cause radio interference (RF) away from your work area.

To determine if your environment is causing shorter than expected ranges, try using your K800 in a different environment to see if the distance improves.

My K800 frequently loses connection****

If you have to constantly reconnect your keyboard or your mouse, try the following:
– Keep other electrical devices at least 8 inches (20 cm) away from the USB Unifying receiver.
– Move the mouse or keyboard closer to the USB Unifying receiver.
– Move the USB Unifying receiver to different locations.

Additional Information
The connection between the K800 keyboard and the USB Unifying receiver can be lost due to several reasons such as:
– Low batteries
– Moving the USB Unifying receiver from one USB port to another
– Moving the USB Unifying receiver to another computer
– Plugging the USB Unifying receiver into a USB hub or other unsupported device such as a KVM switch (your USB Unifying receiver must be plugged directly into your computer).
– Using your wireless mouse/keyboard on metal surfaces

Radio frequency (RF) interference of more powerful wireless devices such as:
– Wireless speakers
– Computer power supplies
– Monitors
– Cellular telephones
– Garage door openers
– If the above solutions do not resolve your problem, consult Knowledge Base article 18009 for instructions on contacting Logitech Technical Support.

Supported operating systems for my K800****

Your K800 is supported by:
– Windows 7
– Windows XP
– Windows Vista

The K800 is not supported on Windows 98, Windows ME, Windows 2000, UNIX, Linux or Macintosh operating systems.

K800 battery life information****

Battery information
Requires 2 AA NiMh batteries.
– Expected battery life is 15 hours to 10 days depending on backlight settings.
– Your keyboard has a standby mode to conserve power when not in use.

NOTE:  The batteries aren’t user replaceable.

Using my K800 with a different USB receiver****

Your K800 ships with the new Logitech Unifying USB receiver as shown below:

You can only connect your K800 with Unifying USB receivers that display the Unifying logo  .
NOTE:  Although the device may be supported by the Unifying receiver, SetPoint and/or Logitech Control Center (LCC) support will depend on the specific product.

Num Lock disabled after Windows 10 starts****

By default, the Num Lock on your keyboard is disabled each time Windows 10 boots up after a shutdown or restart.

To configure your operating system so that Num Lock stays on during startup, please contact professional support for your operating system. This requires advanced changes that need to be done under the guidance of a professional technician.

Read More About:

Logitech K800 Illuminated Wireless Keyboard User Manual

References

• Download Logitech Options Customization Software
• Logitech Support + Download Sustainability Navigation
• Logitech Support + Download Sustainability Navigation

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