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录像机遥控器一般都设置有通/断钮、放像钮、录像钮、倒带/倒带检索钮、快进/快进检索钮等功能按钮。在新颖的录像机上增添了许多特技功能,如日立VT-H757、松下J27等均设置了步进和变速拨盘。本文以日立 VT-见757录像机为例介绍步进和变速功能。一、步进和变速步进功能是使用者每拨动一次遥控器上的步进拨盘时,静止的图像向前翻动一帧。变速功能则可以根据变速投盘上拨动的角度从0°(静止)朝正反方向15种速度变化磁带的播放速度。变速盘以中心位置为基准向左、右方向转动,每转
VCR remote control are generally equipped with on / off button, playback button, video button, rewind / rewind button, fast forward / fast forward button search function buttons. In the new video recorder adds many stunt functions, such as Hitachi VT-H757, Panasonic J27 and so set the step and speed dial. In this paper, Hitachi VT-see 757 VCR as an example to introduce stepper and variable speed functions. First, the stepping and variable speed stepping function is that each time the user dials the stepping dial on the remote control, the still image flipping forward one frame. The variable speed function can change the playing speed of the tape from 0 ° (still) to 15 kinds of speeds in the forward and reverse directions according to the angle of dial on the speed changer. Variable speed drive to the center position as the base to the left and right direction of rotation, each turn