Extron electronics RGB 192, User Manual, Page: 4 / 6

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RGB 192 Analog Computer-Video Interface
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H-SHIFT (Horizontal Shift) — While viewing the displayed image, rotate this control to move the image to the right or
left on the screen.
NOTE: DDSP disables the interface’s Horizontal Shift control.
To use the display’s centering controls instead of the interface’s controls, set the DDSP DIP switch to On .
F
DIP switches
— This bank of DIP switches is used to configure the interface. The switches control:
•
Level
•
DDSP
•
SOG (sync on green)
•
Monitor or no monitor (ID bit termination)
•
Serration pulses
•
Mono or stereo audio
NOTE:
The default for all DIP switches is Off (down).
Level (and peaking) — The Level control alters the video output voltage to affect the brightness of the displayed
image. Turn the switch on and off while viewing the displayed image to set the level that provides the best picture
quality. If the interface receives a typical (0.7 volts p-p) analog computer video input, the output is as follows:
•
On — 0.8 volts p-p with peaking
•
Off — 0.7 volts p-p
Sync on green
—
•
On — The interface outputs a composite sync signal on top of the green video signal (SOG) via the G output
connector (RGsB).
•
Off — The interface outputs separate horizontal and vertical sync (on the H and V connectors) and
composite sync (on the S connector) for RGBHV or RGBS.
Serration pulses — Many LCD and DLP projectors and plasma displays do not display properly if serration pulses
are present in the sync signal. Flagging or bending at the top of the video image is a sign that the serration pulses
should be removed.
•
On
— The interface outputs serration pulses in the vertical sync interval.
•
Off — The interface does not output serration pulses.
DDSP — This feature may be necessary for digital display devices such as LCD, DLP (digital light processor) and
plasma displays. Use this option if the image is not displayed properly after other options, such as serration pulse
and video termination changes, have been tried.
NOTE:
DDSP disables the horizontal and vertical centering controls.
•
On — The interface uses DDSP, which does not process the sync signal.
•
Off — The interface performs sync processing operations.
No monitor (ID bit termination) — This switch controls the input assigned to the local monitor output and ID bit
termination.
•
On
— ID bits 4 and 11 are tied to ground.
•
Off — ID bits 4 and 11 are unterminated.
Mono audio output
•
On — Monaural audio is output on the left channel only. When mono is selected, the right and left inputs are
combined and placed on the left output connectors.
•
Off
— Normal stereo output.