The FRAMING SERVO option is used to insure a more stable picture at the joining points during editing. This switch is used when the SLO-383 is the recorder. When set to ON it exercises more precise control over the capstan during. The framing servo function when in operation looks for the and aligns the precise location of the switching points of the joining frames during an edit. The SLO-383 works in conjunction with a corresponding servo in another Beta that has a framing servo switch to assure that editing and playback are stable. When this VCR is used with another unit that is not equipped with the framing servo system set this switch to OFF. Otherwise, the playback picture may be unstable at the edit points.