K750r - Keyboard LOGITECH - Free user manual and instructions

Product Type	Wireless Solar Keyboard
Brand	Logitech
Model	K750r
Dimensions (W x D x H)	430 x 140 x 20 mm
Weight	500 g
Power Source	Solar (built-in rechargeable cell)
Wireless Range	Up to 10 m
Wireless Technology	Logitech Unifying 2.4 GHz
Compatibility	Windows, Mac, Chrome OS
Special Keys	Media keys, hotkeys
Battery Life	Indefinite with sufficient light
Charging Time	3 hours of sunlight for full charge
Solar Panel	Integrated high-efficiency panel
Spill Resistance	Yes, up to 60 ml liquid
Number of Keys	104 (US layout) or 105 (EU)
Key Type	Scissor-switch
Operating Temperature	0°C to 40°C
Maintenance	Wipe with a soft, damp cloth; do not use solvents
Safety Precautions	Keep away from direct heat sources; avoid prolonged exposure to direct sunlight when not in use
Spare Parts	Not user-replaceable; contact Logitech for service
Warranty	3 years limited hardware warranty

Frequently Asked Questions - K750r LOGITECH

How does the Logitech K750r keyboard charge?

The K750r charges via an integrated solar panel that converts any light (natural or artificial) into electrical energy. It stores power in an internal rechargeable battery, so you never need to replace batteries.

How long does the battery last?

Under typical lighting conditions, the keyboard can run indefinitely. In complete darkness, the built-in battery holds enough charge to last up to three months of normal use.

How do I connect the keyboard to my computer?

Use the included Logitech Unifying receiver — plug it into a USB port. The keyboard is pre-paired. For Bluetooth models, enable Bluetooth and pair via your device's settings. The K750r uses a receiver only.

Is the K750r compatible with Mac?

Yes, the keyboard works with Windows, Mac, and Chrome OS. The media keys (like brightness and volume) are automatically mapped to the corresponding OS functions.

Can I use the keyboard in low light?

Yes, the keyboard works in low light. The solar panel stores energy, so even in dim conditions, it will function. For prolonged darkness, ensure the battery has been charged beforehand.

How do I clean the keyboard?

Unplug the receiver, then wipe the keyboard with a soft, lint-free cloth lightly dampened with water. Do not use alcohol, bleach, or abrasive cleaners. Avoid getting moisture into the keys.

What should I do if a key stops working?

First, check the light level — if too low, move to a brighter area. Also, verify the Unifying receiver is securely connected. If the problem persists, contact Logitech support. The keyboard is not user-serviceable.

Is the keyboard spill-resistant?

Yes, the K750r is designed to withstand spills of up to 60 ml of liquid. If spilled, immediately unplug the receiver, turn the keyboard upside down to drain, and let it air dry for 24 hours.

Can I replace the battery myself?

The internal battery is not user-replaceable. If the battery no longer holds a charge, please contact Logitech customer service for repair or replacement options.

How do I know when the keyboard is fully charged?

The green charging indicator light (located near the top) stays solid when the keyboard is fully charged. While charging, it blinks. In low battery, the light turns amber.

USER MANUAL K750r LOGITECH

Black Logitech keyboard with visible key and control buttons (no text or symbols on the main body)

Contents

English. 3

繁體中文 7

한국어 11

What's in the box

Unifying receiver

Wireless Solar Keyboard K750r

Setting up the keyboard

1. Plug the Unifying receiver into a computer USB port.
2. Pull the tab to activate the keyboard.
3. Turn on the keyboard.

How much light is needed?

The K750r requires only a modest level of light to operate and store energy. Indirect sunlight or indoor illumination is fine.

When exposed to dim room light on a continuous basis, the K750r has enough power for use. Because indoor environments usually have periods of darkness, a moderate level of room lighting is recommended for much of the day. The recharge time for the K750r is much less in brightly lit environments or when the K750r is placed in direct sunlight.

The K750r stores energy automatically, even when turned off. This stored energy allows you to use the K750r without light for a while. With a full charge, the K750r can operate at least three months in total darkness before needing a recharge.

Checking for adequate light

How do you know whether there's enough light for the K750r? Use the Light-check hot key. The K750r tells you if it's getting enough illumination.

1. Make sure the K750r is turned on.
2. Press the Light-check hot key. The Light-check LED will flash either green or red, or it won't produce any light at all. For more information, see Reading the Light-check LED.

Reading the Light-check LED

• Light-check LED flashes green. The K750r is receiving enough light and is ready for use.
- Light-check LED flashes red. The K750r requires more light to continue working on a long-term basis.

Note If the Light-check LED produces no light, please see Help with setup for more information.

Using the Solar App

Want an easy and more visual way of checking the available light falling on the K750r while keeping track of the keyboard's energy reserve? Download and install the Solar App from www.logitech.com/K750/solarapp

• The Solar App operates in the background and notifies you whenever there is a change (up or down) in the K750r's energy reserve.
• Try to keep the Light-check gauge pointing at 100 lux or higher to make sure the K750r will have plenty of energy.
• To bring the Solar App to the foreground, press the Light-check hot key on the keyboard. The Solar App will pop up, and the Light-check gauge will activate immediately.

Note: Not available on Windows RT.

Using the keyboard F-key

User-friendly enhanced F-keys let you launch applications easily. To use the enhanced functions (blue icons), first press and hold the FN 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.*

* Requires SetPoint™ Software (available for download at www.logitech.com/downloads. Not available on Windows RT.)

Keyboard features

1. Application zone

FN + F1 Internet home

FN + F2 Launch e-mail application

FN + F3 Launch Windows Search*

FN + F4 Launch calculator

2. Multimedia navigation zone

FN + F5 Launch media application

FN + F6 Previous track

FN + F7 Play/Pause

FN + F8 Next track

3. Multimedia volume zone

FN + F9 Mute

FN + F10 Volume down

FN + F11 Volume up

FN + F12 Sleep mode

1. FN key

2. Light-check hot key

3. Keyboard power switch

4. Solar cells

* One Touch Search if the SetSpoint® software is installed. (Not available on Windows RT.)

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

Note: Not available on Windows RT.

graph TD
    A["unifying"] --> B["USB Port"]
    B --> C["Computer Mouse 1"]
    B --> D["Computer Mouse 2"]
    B --> E["Computer Mouse 3"]

Help with setup: keyboard not working

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

- Move closer? Try moving the K750r closer to the Unifying receiver, or plug the Unifying receiver into the Wireless extender if you are using a tower PC.

• Is the K750r turned on? Slide the keyboard Off/On switch to Off and then to On position.

- Re-establish the connection. Use the Unifying software to reset the connection between the K750r and Unifying receiver. Refer to the Unifying section in this guide for more information.

- Restart the computer.

- Press the Light-check hot key. If the Light-check LED produces no light, the K750r is out of energy. To use the K750r again, significantly increase the amount of light over the keyboard to a level you might see in a brightly lit office. It may take a day or two for the K750r to recharge when exposed to this increased level of illumination, but only several hours if the K750r is placed in direct sunlight.

Note: Any time the Light-check LED flashes red automatically, the K750r is nearly our of energy and needs more light to keep working on a long-term basis.

- Download and use the Solar App. This handy widget gives you an easy and more visual way of checking the available light hitting the K750r while keeping track of the keyboard's energy reserve. Download the Solar App from www.logitech.com/K750/solarapp (Not available on Windows RT.)

Handling the product at end of life

When you have made the decision to stop using your product, recycle it according to your local laws. Follow the instructions below to remove the battery (not user replaceable) from the keyboard, and then recycle both the keyboard and battery as recommended in steps 3 and 4.

1. Use a screwdriver to open the battery tray.

2. Carefully remove the battery from the tray.

3. Hand over the spent battery to the appropriate collection point for the recycling of batteries.

4. Hand over the product to the appropriate collection point for the recycling of electrical and electronic equipment.

Diagram showing a screwdriver inserted into a component with a switch and recycling symbol (no text or labels)

包裝內容

Diagram showing a screwdriver inserted into a slot with a switch and a recycling symbol (no text or labels)

내용물

무선 솔라 키보드 K750r

Unifying 수신기

키보드 설정

Solar App 사용

graph TD
    A["unifying"] --> B["Laptop"]
    B --> C["Keyboard"]
    C --> D["Computer Mouse Icon"]
    D --> E["Computer Mouse Icon"]
    D --> F["Computer Mouse Icon"]

Illustration of a screwdriver working on a mechanical component with a base, emitting smoke (no text or symbols)

Rating: 5V --- 100mA

Approval No.: ETA-1115/2011/WRLO

CMIIT ID: 2011DJ1853

KCC-CRM-DZL-C-U0008

MADE IN CHINA

www.logitech.com

www.logitech.com/support