Logitech® Wireless Solar Keyboard K750

The Logitech Wireless Solar Keyboard K750 makes battery hassles a thing of the past, even indoors. The keyboard connects automatically via a 2.4GHz wireless unifying receiver, and the solar battery will stay charged for up to 3 months, even in total darkness.

Setting up the keyboard

1.  Plug the Unifying receiver into a computer USB port. For iMac, Mac Mini and Mac Pro, use the Wireless extender to minimize the possibility of radio frequency (RF) interference.
2. Pull the tab to activate the keyboard.
3. Turn on the keyboard.

How much light is needed?

The K750 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 K750 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 timefor the K750 is much less in brightly lit environments or when the K750 is placed in direct sunlight.
The K750 stores energy automatically, even when turned off. This stored energy allows you to use the K750 without light for a while. With a full charge, the K750 can operate up to three months in total darkness before needing a recharge.

Using the Solar App
Want an easy and more visual way of checking the available light falling on the K750 while keeping track
of the keyboard’s energy reserve? Download and install the Solar App from www.logitech.com/k750-mac/solarapp

•  The Solar App operates in the background andnotifies you whenever there is a change (up or down)in the K750’s energy reserve.
•  Try to keep the Check Light gauge pointing at 100 lux orhigher to make sure the K750 will have plenty of energy.
•  To bring the Solar App to the foreground, press the CheckLight hot key on the keyboard. The Solar App will pop up,and the Check Light gauge will activate immediately.

Keyboard not working

•  Check the Unifying receiver. Also, try changing USB ports.
•  Move closer? Try moving the K750 closer to the Unifying receiver, or plug the Unifying receiver into the Wireless extender if you are using an i Mac, Mac Mini, or Mac Pro.
•  Is the K750 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 K750 and Unifying receiver.Refer to the Unifying section in this guide for more information.
•  Restart the computer.
•  Press the Check Light hot key. If the Check Light LED produces no light, the K750 is out of energy. To use the K750 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 K750 to recharge when exposed to this increased level of illumination, but only several hours if the K750 is placed in direct sunlight.

Note: Any time the Check Light LED flashes red automatically, the K750 is nearly out of energy and needs more light to keep working ona 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 K750 while keeping track of the keyboard’s energy reserve. Download the Solar App from www.logitech.com/k750-mac/solarapp