Silvercrest SL 80/2 100CI Operation And Safety Notes page 55

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HDD
?
EXIT
Tip about functions "Remove channel" and "Clear current list":
If you have unintentionally deleted a channel or a whole list, you can
make a channel search to recover the channels.
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Use the yellow key (19) to lock or unlock channels. The
locked channels can then be unlocked only on entering the
four digit password. Please also refer to the item "Menu lock"
on page 64.
Press the HDD key (25) to delete the complete contents of
the selected list.
Please remember that no confirmation window will appear if
you delete a list. You can also delete the list of all channels.
Use the ?-key (27) to show or hide Help.
Pressing the Exit key (9) brings up a confirmation window.
You can select whether you would like to save the changes
(OK key (14) to "Save changes", menu key (8) to "Abort", Exit
key (9) to "Exit without saving").