Sangean PR-D8 Mode D'emploi page 17

Lock Switch
The lock switch is used to prevent unintentional operation of
the radio. Set the lock switch on the right side of the radio to the
on position. The Lock Icon will appear in the display. The power
and all other buttons will be disabled. This will prevent accidental
operation when the radio is packed in a suitcase or carrying
a pouch. To release the lock switch, simply move the switch to
OFF position, the LOCK icon will be disappear from the display.
Tone Control
The tone control switch is to adjust sound effect according to the
program you are listening or playing back. Switch to Music position
while you are listening to a music program and switch to news
position while you are listening and playing back the recording from
your voice.
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