Hitachi VM-1700A - Manual (Page 51)

FORWARD AND REVERSE SEARCH
51
FORWARD AND REVERSE SEARCH
When you press "F.FWD" or "REW" button during playback, the tape will be played
back at a speed about 3 times faster than normal playback speed, and you can easily
locate a certain spot on the tape. Press "PLAY" button to return to normal playback
mode or press "STOP/EJECT" button to stop tape movement.
NOTE: There will be some noise (interference) in the forward or reverse search pictures
while visually scanning.