B.UNLIMITED Board - Computer Keyboard Cherry - Free user manual and instructions

Product type	Wireless keyboard
Brand	Cherry
Model	B.UNLIMITED Board
Connection technology	Wireless 2.4 GHz
Encryption	AES 128 bits
Power supply	2 NiMH HR03 AAA 820 mAh batteries
Supply voltage (keyboard)	1.9...3.0 V SELV
Consumption (keyboard)	typ. 3 mA, max 180 mA during charging
Charging	Via USB cable (USB port or adapter)
Full charging time	Approx. 5 hours
Programming software	KeyM@n (free download)
Charging indicator	Red LED blinking, then off
Transmission frequency	2400.0...2483.5 MHz
Transmission power	Max. 10 mW (EIRP)
Operating temperature	0 °C ... +40 °C
Storage temperature	-20 °C ... +65 °C
Compatibility	PC / laptop with USB port
Maintenance	Slightly damp cloth, mild detergent
Repairability	No personal repair, contact the dealer
Warranty	Legal warranty

Frequently Asked Questions - B.UNLIMITED Board Cherry

How to connect the keyboard to my computer?

Connect the USB receiver to the USB port of your PC/laptop, then set the keyboard switch to ON. No software installation is needed.

How to charge the keyboard batteries?

Plug the charging cable into the keyboard connector and into a USB port or power adapter. The red LED indicates charging. Full charging takes about 5 hours. The LED turns off when the batteries are fully charged.

What to do if the LED blinks red?

The blinking red LED indicates low batteries. Plug the keyboard to charge it.

How to program the F keys and shortcuts?

Download the KeyM@n software for free from www.cherry.de. It allows programming the F keys (except 'PC lock') and keyboard shortcuts.

How to clean the keyboard?

Use a slightly damp cloth with a mild detergent. Avoid solvents and do not let liquid penetrate the keyboard. Do not remove the keycaps.

The keyboard does not work, what to do?

First check the battery charge. Try plugging the receiver into another USB port. If the problem persists, press Esc + A simultaneously for 3 seconds to restore the connection.

What type of batteries to use?

Use only rechargeable NiMH batteries of type HR03 (AAA) with low self-discharge. Charge them only in the keyboard.

How long does the battery last?

With NiMH AAA 820 mAh batteries, the battery life depends on usage. Charge the batteries as soon as the LED blinks red to extend their lifespan.

Can I use the keyboard while charging?

Yes, you can continue working during charging. The red LED stays on until charging is complete.

How to dispose of the keyboard and batteries at end of life?

Do not dispose of the device or batteries in household waste. Take them to a recycling center or your dealer. Batteries must be protected against short circuits.

USER MANUAL B.UNLIMITED Board Cherry

Black and white image of a standard Cherry keyboard with visible fuses, keys, and control buttons (no readable text or symbols beyond branding)

CHERRY B.UNLIMITED BOARD

Wireless Rechargeable Keyboard

Operating Manual....7

Mode d'emploi....10

Diagram illustrating computer setup with keyboard, mouse, and mouse accessories connected to a device interface

Connect the receiver to the USB port of the PC/laptop.

Switch the keyboard on (switch to ON).

Charge the keyboard batteries when the battery status LED 📄ches red.

CHERRY B.UNLIMITED BOARD - Wireless Rechargeable Keyboard

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Herzlichen Glückwunsch ...

CHERRY B.UNLIMITED BOARD - Wireless Rechargeable Keyboard

7 Kontakt

CHERRY B.UNLIMITED BOARD - Wireless Rechargeable Keyboard

Congratulations ...

CHERRY has developed and produced innovative input systems for computers since 1967. You can now experience the difference in quality, reliability and design with your new favorite accessory.

Always insist on original CHERRY products ... For information on other products, downloads and much more, visit us at www.cherry.de.

Your CHERRY B.UNLIMITED BOARD stands out especially due to the following characteristics:

• Rechargeable keyboard
  • 2.4 GHz wireless technology with secure 128-bit AES encryption

1 Connecting keyboard

1 Connect the receiver to the USB port of the PC/laptop.
2 On the back of the keyboard, set the on/off switch to ON.

The keyboard is ready to use without installing any software.

The rechargeable batteries are pre-charged and do not need to be charged before use.

2 KeyM@n softwar

You can configure the F-keys and Hotkeys (except "blocking the PC") using KeyM@n software las a free download at: www.cherry.de > Help & Support > Downloads > CHERRY B.UNLIMITED BOARD).

Try it and see!

3 Charging the batteries

CAUTION: Damage to the batteries or the keyboard

• Only charge the batteries in the keyboard. Do not use an external charger.
• Only charge nickel-metal hydride batteries in the keyboard.

Charge the keyboard batteries when the battery status LED shades red. Charging the batteries in good time prolongs its service life.

1 Switch the keyboard on (switch to ON). 2 Connect the charging cable to the socket on the keyboard and a USB port or USB mains adapter.

Your power source (PC, laptop, network adapter) must be connected. You can continue to work while it is charging. The LED lights up red.

It takes approx. 5 hours to fully charge the batteries. When the battery status LED goes out then the batteries are fully charged. The charging circuit prevents overcharging.

4 Tips

4.1 Cleaning the keyboard

CAUTION: Damage may be caused by harsh cleaning agents or liquids in the keyboard

• Do not use solvents such as gasoline or alcohol and scouring agents or scouring sponges for cleaning.
• Prevent liquids from entering the keyboard.
• Do not remove the keycaps of the keyboard.

1 Switch off the PC.
2 Clean the keyboard with a slightly damp cloth and some mild cleaning agent (e.g. dish washing liquid).
3 Dry off the keyboard with a soft, lint-free cloth.

OPERATING MANUAL

CHERRY B.UNLIMITED BOARD - Wireless Rechargeable Keyboard

4.2 RSI syndrome

RSI stands for "Repetitive Strain Injury". RSI arises due to small movements continuously repeated over a long period of time.

Typical symptoms are discomfort in the fingers or neck.

• Set up your workspace ergonomically.
• Position the keyboard and mouse in such a manner that your upper arms and wrists are outstretched and to the sides of your body.
  • Take several short breaks, with stretching exercises if necessary.
• Change your posture often.

4.3 Troubleshooting

1 See: 3 "Charging the batteries".
2 Connect the receiver to another USB port on the PC.
3 Establish a new connection to the receiver: Press the esc and Q keys on the keyboard at the same time.
Release the keys when the battery status LED on the keyboard flashes after approx. 3 seconds.

5 Disposal

5.1 Disposing of the device

Dispose of the used device at an official collection point for electronic waste or at your local dealer.

5.2 Disposing of the batteries

The device contains nickel-metal hydride batteries with low self-discharge.

Do not dispose of them in the household waste. Batteries may contain pollutants which can harm the environment and health. Dispose of the batteries with the device in a retail outlet or at your local recycling depot. Returning the device is compulsory and free of charge. Secure the discharged battery from short-circuiting (such as by attaching tape on the poles) and put them in the containers provided. All batteries are recycled. This enables valuable resources to be restored such as iron, zinc or nickel. Recycling batteries is the easiest contribution you can make towards environmental protection.

Thank you for your cooperation.

6 Technical data

Designation Value

Supply voltage Keyboard: 1.9 ... 3.0 V SELV Receiver: 5.0 V/DC ±5% SELV

Designation Value
Current consumption	Keyboard: typ. 3 mA (during the charging process: 180 mA)Receiver: typ. 30 mA
Batteries 2 NiMH	batteries with low self-discharge, HR03 type (AAA), 820 mAh
Operating frequency	2400.0 ... 2483.5 MHz
Effective radiated power	Max. 10 mW (EIRP)
Storage temperature	-20 °C ... +65 °C
Operating temperature	0 °C ... +40 °C

7 Contact

Please provide the following information about the device when you make an enquiry:

• Item and serial no. of the product
  • Name and manufacturer of your system
• Operating system and, if applicable, installed service pack version

Cherry GmbH

Cherrystraße 1

91275 Auerbach, Germany

We reserve the right to make technical modifications which serve the development of our products. Improper use and storage can lead to faults and damage to the product. These instructions are only valid for the supplied product.

9 Warranty

The statutory warranty applies. Please contact your specialist dealer or contractual partner. The warranty expires completely once unauthorized modifications to the product have been carried out. Do not carry out any unauthorized repairs and do not open up the product.

10 Certifications

10.1 EU declaration of conformity

The company Cherry GmbH, Auerbach/OPf., Germany hereby declares that this radio system model

conforms to the European guideline 2014/53/EU. The full text of the EU declaration of conformity can be found under the following Internet address: www.cherry.de/compliance.

There you must click on the product names to open the EU declaration of conformity.

10.2 Federal Communications Commission (FCC) Radio Frequency Interference Statement

Information to the user: This equipment has been tested and found to comply with the limits for Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

• Reorientate or relocate the receiving antenna.
• Increase the separation between the equipment and receiver.
• Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
• Consult the dealer or an experienced radio/TV technician for help.

Caution: Any changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.

10.3 For UL

For use with Listed Personal Computers only! The recharging cable is only connecting to USB 1.x or 2.x for power supplying and charging the keyboard.

CAUTION: Risk of explosion if batteries are replaced by an incorrect type.

- Dispose of used batteries according to these instructions.

MODE D'EMPLOI

CHERRY B.UNLIMITED BOARD - Wireless Rechargeable Keyboard

Félicitations ...

- Clavier rechargeable

CHERRY B.UNLIMITED BOARD - Wireless Rechargeable Keyboard

7 Contact

CHERRY B.UNLIMITED BOARD - Wireless Rechargeable Keyboard

Felicidades ...

CHERRY B.UNLIMITED BOARD - Wireless Rechargeable Keyboard

4.2 Síndrome RSI

"Repetitive Strain Injury" = "Síndrome del túnel carpiano". El RSI se origina por movimientos pequeños, repetidos continuamente.

CHERRY B.UNLIMITED BOARD - Wireless Rechargeable Keyboard

Congratulazioni ...

CHERRY B.UNLIMITED BOARD - Wireless Rechargeable Keyboard

7 Contatti