JVC Exad KD-AVX20 Instructions Manual page 22

Also functions as CLR (clear):
Erases a misentry if pressed while
holding SHIFT.
Stops playback.
Starts or pauses playback. (Slide show:
each track is shown for a few seconds.)
Shows the current file until you change it if
pressed during Slide show.
Selects track.
Selects folder.
Selects file (within the same folder).
[Twice]
Selects folder.
Changes the aspect ratio of the playback
pictures.
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