Operation - Extron electronics RGB 203 Rxi User Manual

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Installation and Operation, cont'd
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 — Vertical sync pulse width — For some digital displays, if:
• no picture appears
• the picture cuts in and out
• the picture is scrambled
try adjusting the output vertical sync pulse width or
switching from ADSP to DDSP.
On — The vertical sync pulse is narrow.
Off — The vertical sync pulse is wide.
5 — Local monitor and ID bit termination — This switch
controls the input assigned to the local monitor output and
ID bit termination.
On — The local monitor connector follows the input
selection and ID bits 4 and 11 are tied to ground.
Off — The local monitor output connector is locked to
input 1 and ID bits 4 and 11 are unterminated.
6 — Monaural audio output
On — Mono audio is output in the left channel only.
Off — Normal stereo output.
7 — Auto switch
On — The interface automatically switches to the highest
numbered input with sync present.
Off — Manual switch mode.
Auto switch works for RGBHV and RGBS video inputs
only. Auto switch does not work for RGsB video input.
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2-12 RGB 203 Rxi, RGB 203 Rxi VTG • Installation and Operation
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Operation

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8 — No LCD backlight — This switch controls illumination of
the LCD backlight.
On — The LCD backlight is off, except for three seconds
at power-up.
Off — The LCD backlight is on while a signal is present at
the selected input.
Remote connector — Connect an RS-232 device (control system
7
or PC computer) for remote switching between inputs and
remote centering control to this DB 9 female connector
(figure 2-9). Software for RS-232 control is included with the
interface. See chapter 3, Remote Control for details.
5 1
Pin RS-232
1 —
2 TX
3 RX
9 6
Female
4 —
5 Gnd
1 5
6 —
7 —
8 —
6 9
Male 9 —
Figure 2-9 — Remote connector pin assignments
Connect a contact closure remote control device to this 9-pin D
female connector for remote switching between inputs.
AC power connector — Connect a standard IEC AC power cord
8
here for power input (100VAC to 240VAC, 50/60 Hz) to the
internal, autoswitching power supply.
Connect power cords and turn on the display and audio output
devices (projectors, monitors, speakers), interface, and input
devices (computers). The system is ready for operation.
Select an input using the front panel toggle switch or the remote
control (keypad, system, or PC). The image should now appear
on screen and sound should be audible. If not, ensure that all
devices are plugged in and receiving power. Check the cabling
and switch settings, and make adjustments as needed. Select a
different input (or the VTG) to check for a picture and sound.
If problems persist, see Troubleshooting in this chapter. If the
troubleshooting tips do not help, call the Extron S
Technical Support Hotline.
ce-info@camboard.de
Contact closure Function
In#1 Input #1
— Transmit data (-)
—
Receive data (+)
In#2 Input #2
Gnd Signal ground
In#3 Input #3
— —
— —
— —
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