Extron Electronics RGB 202xi User Guide Rev. E - Manual (Page 23)

Extron • RGB 202xi Series • User’s Manual Page 3-4
Scan Rate Indicator
This LCD readout alternately displays the
horizontal and vertical scan frequencies of the
selected input. To the right of the scan-rate
display, the red LED will illuminate indicating a
horizontal reading, and the green LED will
illuminate indicating a vertical reading. This frequency
readout is displayed in Hertz (Hz).
Input Switch
The RGB 202 xi interface can be connected to two
computers at the same time, thus making it a two- input
switcher, as well as an interface. The input switch is used
to select which input source will be displayed on the data
monitor or projector. Used to select Input #1 or #2 (both
video & audio) for output from the RGB 202
xi. When in
the #1 position, a constant contact switch may be
connected through the rear panel for remote switching.
DIP Switch Operation
The RGB 202 xi uses the "rocker" type of
DIP switches. An example is shown here.
When looking at the switches from the rear:
On = press right side of the switch.
Off = press left side of the switch.
_ The factory setting for all DIP switches is Off.
Rear Panel DIP Switches
The DIP switches function as follows:
#1 - Sync Processing
Off = Use normal sync processing.
On = Use LCD Sync processing.
Centering controls ( and
) become
inactive. This switch may also be used:
a. To get a center reference point by
temporarily turning it ON, note the
picture centering, and then turn it OFF
and make centering adjustments.
b. When centering from the display device only.
c. If there is difficulty adjusting the centering.
#2 - Sync On Green Defeat
Off = Auto Sync detection is active.
On = Auto Sync detection, but No Sync on Green.
Operation • Controls and Indicators
Extron • RGB 202xi Series • User’s Manual
Operation • Controls and Indicators
Page 3-7
Laptop, Notebook or Portable Applications – Video from
these computers may be quite different from standard
PCs or Macs because they were designed to use an LCD
screen instead of a CRT monitor. Here are some
guidelines:
A) When using Laptop, Notebook or portable computers
with VGA outputs, the termination switch must be set to
75 ý for that input (#1 or #2) and all cable connections
must be made before turning the computer power ON
(unless using an LBC VGA cable, or using a VGA
Termination Adapter).
B) Most Laptop, Notebook and portable computers have
external video (CRT or RGB) ports but require special
keyboard commands to access or output the video to
this connector. See the User’s Guide that came with the
computer for instructions to activate this video port or
call Extron for a complete list of all Laptop, Notebook
and Portable keyboard commands.
C) Most portable computers with built-in LCD displays will
be deactivated (shut-off) automatically once the
external video port has been activated.
The illustration below shows how a Laptop computer
could be connected to an RGB 202
xi.