Controls And Operations; Video Source; Color Processor - Datavideo se-500 Instruction Manual

4. Controls and Operations

4.1

Video Source

Selecting the Main and Sub Video Sources
is the first thing to do when setting up the
SE-500.
The source you select (by pressing one of the buttons; a bright red LED on the selected button lights for
confirmation) on the Main Source bus is what is sent to the Video output. This means that you can perform
cuts between sources by simply pressing different buttons.
The Sub Source selection determines which input will be transitioned to when using any of the transition
controls (Wipe and Fade) and provides the video for Picture in Picture and Split functions. (See
Transitions and Using Effects
In addition to selecting which video input channel will be present in the Main and Sub Source busses, you
must check the appropriate input for each channel in use. (See
adjusting audio levels) The SE 500 has automatic input select; if there is an S-Video cable connected to
the S-Video input, the channel will automatically switch to S-Video input. However this means that, if both
composite and S-Video inputs are connected and there is no valid video signal present thru S-Video, you will
see a black video when that channel is selected for output. For example, if you have a camcorder connected
to channel 1 through the composite input, and you also have channel 1's S(Y/C) connected to another non-
working device, you will see a black video, even if the camcorder is supplying a signal. You will also see a
black video if the camcorder is not supplying a video signal, such as when it is powered off, or in playback
mode with no tape loaded.
Tech note:
The frozen image is a function of how the time base corrector (TBC, a.k.a. frame synchronizer)
works. The SE-500 has a TBC at the Main Video Source and the Sub Video Source input on each channel.
Their purpose is to stabilize the video signals as they come into the switcher, and to synchronize their timing
so that they can be switched and otherwise combined with no disruption to the video signal. For more
information on TBCs, see
4.2

Color Processor

The Color Processor controls work when you press and hold the "Background" (9.)
button for 2 seconds or more, which is temporarily displayed at the Preview Output. For
more information, please see the "MENU" section. These controls are like picture
controls on a video monitor or the proc amp (processing amplifier) controls on a time
base corrector. In fact, they are the proc amp controls of one of the SE-500's 4 internal
TBCs.
for more details.)
What is a frame synchronizer.
Selecting video input formats and
18
Using