See also:

Backward direction
Turn the “TUNE/TRACK/CH” dial counterclockwise to skip to the beginning of the current track/file (track). Each time the dial is turned, the indicated track/file (track) number will decrease. N ...

Warning and indicator lights
...

Folder selection (only when connecting USB storage device)
Refer to “Folder selection”. NOTE When an iPod® is connected, you cannot select a folder. ...