微軟正黑體;mso-bidi-font-family:Arial;color:black;mso-color-index:1;mso-font-kerning:
12.0pt;language:en-US">The PGM (Program Video, marked as RED) and PRV (Next
Program Preview, marked as Green) are two basic elements for video
transition/switch on the scenes control panel of UC9020.  User can follow the way below to perform
program video switching.

微軟正黑體;mso-bidi-font-family:Arial;color:black;mso-color-index:1;mso-font-kerning:
12.0pt;language:en-US">

微軟正黑體;mso-bidi-font-family:Arial;color:black;mso-color-index:1;mso-font-kerning:
12.0pt;language:en-US">T-bar Switching

微軟正黑體;mso-bidi-font-family:Arial;color:black;mso-color-index:1;mso-font-kerning:
12.0pt;language:en-US">A T-bar enables switching from a preselected PRV video
signal to the PGM output. To create a certain effect, transitions can also be
held midway.

微軟正黑體;mso-bidi-font-family:Arial;color:black;mso-color-index:1;mso-font-kerning:
12.0pt;language:en-US">

微軟正黑體;mso-bidi-font-family:Arial;color:black;mso-color-index:1;mso-font-kerning:
12.0pt;language:en-US">Cut and Auto Button Switching

微軟正黑體;mso-bidi-font-family:Arial;color:black;mso-color-index:1;mso-font-kerning:
12.0pt;language:en-US">Pressing the Cut button switches the PRV video signal to
PGM output, replacing the current PGM output with PRV video. The Auto button
applies transition for a predetermined duration, switching the PRV video and
PGM output.