3. Sync Processing & Polarity
Sync Processing
For VGA applications the Transmitter adds the Horizontal and Vertical sync pulses to the Blue and Red channels.
Since the unit has been designed for use with other types of video the Receiver provides the ability to both pass
the Red and Blue channels transparently or process them to remove the Sync Pulses. The Green channel is al-
ways transparent.
3.1
To pass video transparently for the Red and Blue channels the jumpers must be set in the
+
po
sition.
3.2
To process the video and remove the sync pulses the jumpers must be set in the
-
position
In the example opposite the Blue channel is set to remove sync pulses and the Red
channel to pass the video transparently.
3.3
For composite video use the Green channel
3.4
For Y/C applications set the Red link to be transparent and use the Green channel for luminance
and the Red channel for Chrominance.
3.5
For YUV applications set both the Red and Blue links to transparent and use all three channels.
When switching between different video formats the SLX-RX200 can be used simultaneously for
VGA, composite video and Y/C (this is because the Red connection also goes to pin 9 of the HD15
socket on the receiver unit and by-passes the sync stripping circuit) OR by setting the links for
transparent paths the SLX-RX200 can be used for Composite video, Y/C and YUV for both output
ports.
Sync Polarity
Using the Sync Polarity section of the jumper pins it is possible to set the polarity of the Horizontal and Vertical
Sync pulses.
3.3
To make the sync pulses positive going the jumpers should be set in the + position.
3.4
To make the sync pulses negative going the jumpers must be set in the – position.
In the example opposite the Horizontal Sync ( Sync) is positive going and the Vertical
sync (V Sync) is negative going
Installation and Operation - SLX-RX200
Page 18
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