Acer mf-350 用户手册
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2. Press down the Menu button once and then push the Menu button to
select DEL MUSIC.
3. All of the stored file will be displayed by sequence, switch the Menu
button to the right or to the left to select Yes to delete the file shown
on the Display, or select No to skip to the next file, or select EXIT to
leave the current screen.
Delete All Tracks (Files)
1. Press down the Menu button once, and then push the Menu button to
the right four times, and now you should read the message of DELETE
FILE appearing on the Display.
2. Press down the Menu button once and then push the Menu button to
the right twice to select DEL ALL MUSIC.