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Keys on the rear
On / Off:
Use this key to switch the unit on and off.
Connect:
Briefly press the connect key on the keyboard and on the
attached USB dongle to establish a connection between the two
devices. If the keyboard and dongle are not connected, the string
of 8 LEDs displays a chase and the dongle light is red. The chase
goes off and the dongle light turns green as soon as a connection
has been established.
Additional keys on the user interface
Status key:
If you press the status key, the state of charge is displayed in
eight levels on the LED bar.
Additional display functions
Cleaning needed:
After you have pressed the keys 10,000 times, the red “Cleaning
needed” LED lights up (spray bottle symbol) and indicates that
the keyboard should be cleaned. The display goes off by locking
the keyboard with the keylock key before cleaning and unlocking
it afterwards.
Battery <25%:
If the battery has less than 25% power left, the red “Battery
<25%” LED lights up (symbol of battery with a lightning bolt).
(Special operating and display elements on the CK4-Wireless)
