GRASS VALLEY PERFORMER, Instruction Manual

Page: 72 / 182

2-40
Section 2 —
Installation
Vertical Interval Strobe Selection
Performer generates its own Vertical Interval strobe, which times
the switching of video so that switching occurs within a region of
each video field when there is no active video. You may use either
an internally generated strobe or an external strobe if the video
signal you are using does not contain sync information and you
wish to synchronize switching with an external device.
To change the vertical interval strobe setting:
1. Locate switch S2, segments 7 and 8 (see page 2-41).
2. Set for one of the three following conditions:
■
Standalone—For Internal Strobe without providing
external strobe output from pin 4 of REMOTE connector:
Open
segments 7 and 8
■
Master—To provide External Strobe from pin 4 of the
REMOTE connector while using Internal Strobe:
open
segment 7; Close segment 8.
• Factory setting
■
Slave—To receive External Strobe on pin 4 of the
REMOTE connector: Close segment 7;
open
segment 8.
• For video signals without sync information
CAUTION
Do not set both segments to the “C” closed/ON position. This may
cause a system malfunction.