Extron electronics RGB 190F User Manual page 9

Installation and Operation, cont'd
For RGsB (sync on green, SOG), connect the cables to three
BNCs. Also select the SOG option on the front panel DIP switch
(see item , Dip switches in this chapter.
6
Stereo audio output connector (RGB 192 only) — Connect an
5*
audio device, such as powered speakers, to this
3.5mm, 5-pole captive screw connector for
balanced or unbalanced stereo or mono audio
output. Stereo or mono output is determined
by a DIP switch setting on the front panel,
or unbalanced outputs are available for mono and stereo.
Figure 2-5 shows how to wire the captive screw audio
connector. The connector is included with the interface, but you
must obtain the cable. Insert the wires into the appropriate
openings in the captive screw connector. Tighten the screws on
top to fasten the wires.
Wiring the audio incorrectly can damage the audio
CAUTION
output circuits.
Connect the sleeve(s) to ground (GND).
Connecting the sleeve(s) to a negative (-) terminal
will damage audio output circuits.
Tip
See caution
Sleeve
Tip
See caution
Unbalanced Output
Figure 2-5 — Wiring the audio output connector
DIP switches — This bank of DIP switches is used to configure
6
the interface. The switches control:
• Level
• SOG (sync on green)
• Serration pulses
• DDSP
• Monitor or no monitor (ID bit termination)
• Mono or stereo audio (RGB 192 only, spare on RGB 190F)
2-6 RGB 190F, RGB 192 • Installation and Operation
RGsB
see DIP switch 6 in item , DIP switches,
6
below. When mono is selected, the right
and left inputs are combined and placed
on the left output connectors. Balanced
Tip
Ring
Sleeve (s)
Tip
Ring
Balanced Output
The default for all DIP switches is Off (down).
1 — 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.
2 — 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.
3 — Serration pulses — Many LCD and DLP projectors and
plasma displays will 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.
4 — DDSP
DDSP disables all sync processing. 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.
On — The interface uses DDSP, which does not process
the sync signal.
DDSP disables the horizontal and vertical centering
controls.
Off — The interface performs sync processing operations.
RGB 190F, RGB 192 • Installation and Operation 2-7