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One of the 32 sync holes in the disc needs to be masked to produce a standard missing frame sync pulse, the hole that passes the opto fork when the spiral of scanning holes jumps to a new frame. Final adjustment of the opto fork can be done by observing the position of the sync bar on the picture in the monitor
这是国外nbtv爱好者网站的一句话,说是光盘上的32个同步孔中的一个需要被屏蔽以产生标准的缺帧同步脉冲,当扫描孔的螺旋跳到一个新帧时,这个孔通过光叉。光叉的最终调整可以通过观察显示器上图片上的同步条的位置来完成,那要怎么屏蔽其中一个同步孔?直接遮住这个孔吗 |
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