Hitachi VT-F494A Owner's Manual page 37

Basic Operations
Press 7 for rewind or 9 for forward to begin the index search.
The tape rewinds or fast-forwards until an index mark is detected. During this search,
the words SCAN AND PLAY display on the bottom of your screen.
When the VCR finds an index mark, it plays 15 seconds of the program that begins at
that spot.
If this is the program you were looking for, press PLAY to resume normal playback.
If this is not the program you want, don't press anything. After 15 seconds, the VCR
will move to the next mark and play a part of that program. The VCR will continue
searching until you press STOP or reach the end of the tape.
When you find the program you want and press PLAY, the VCR returns to PLAY mode.
To stop the index search before an index mark is reached, press STOP.
If there are no index marks on the tape, the VCR will just rewind to the beginning or fast
forward to the end.
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