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Installation and Operation, cont'd
VTG controls (RGB 203 Rxi VTG only)
The RGB 203 Rxi VTG includes a limited video test generator.
The VTG creates and outputs standard test patterns at fixed
formats and resolutions so that a system can be set up and
tested even when an input computer is not available.
203 (interface)/VTG selection switch — Use this switch to
8*
select the output signal's source:
203 — The interface outputs the selected input (from input 1, 2,
or 3) for display.
VTG — The interface outputs a test pattern generated by the
VTG for display.
When this switch is set to VTG, signals from input 1, 2,
and 3 are ignored; the interface's internal VTG provides
a test pattern in place of the computer video input.
Input selection cannot be performed until the 203/VTG
selection switch is set to 203.
VTG output resolution and pattern selection switch — Select a
9*
combination of display resolution and video test pattern using
this 16-position rotary switch. Four different video test patterns
(figure 2-12) are available for each of the four resolutions offered
by the RGB 203 Rxi VTG's built-in mini video test generator.
Crosshatch
H pattern
Figure 2-12 — Mini VTG test patterns
www.camboard.de
2-18
RGB 203 Rxi, RGB 203 Rxi VTG • Installation and Operation
CAMBOARD Electronics
8 split-level grayscale
8 Color Bars
Tel. 07131 911201
Fax 07131 911203
Operating the VTG
Operate the VTG as follows:
1.
Set the front panel 203/VTG selection switch to VTG.
2.
Select an appropriate combination of output resolution
and test pattern using the 16-position rotary switch on the
front panel. Four different video test patterns are available
for each of the four resolutions. Select the test patterns by
rotating the switch within the appropriate resolution
quadrant. The LCD displays the selected VTG format, the
resolution, and then the scan rates.
The table below shows the four available resolutions:
S
w
i
c t
h
F
o
r
m
a
t
q
u
a
d
r
a
n
t
1
V
G
A
(
V
G
A
) 3
2
S
V
G
A
3
X
G
A
(
V
E
S
A
) 3
4
S
X
G
A
S (
G
) I
Executive mode (front panel security lockout)
The executive mode limits the operation of the interface from
the front panel. When the interface is in executive mode, the
front panel Vertical centering ( ), Horizontal centering ( ), and
Input selection functions are disabled.
To toggle executive mode on or off, hold down the Input
selection switch for approximately five seconds. The LCD
displays EXEC MODE ON to indicate the mode change.
Release the switch. To toggle the executive mode off, hold
down the Input selection switch again until the LCD displays
EXEC MODE OFF.
Troubleshooting
Turn on the input devices (computer, audio device) and output
device(s) (projector, monitors, speakers). The image should
now appear on the screen, and sound should be audible.
If the image does not appear or there is no sound
1.
Ensure that all devices are plugged in.
2.
Make sure that each device is receiving power. The
interface's front panel LCD lights if the interface is
receiving power and an active sync signal.
ce-info@camboard.de
RGB 203 Rxi, RGB 203 Rxi VTG • Installation and Operation
R
e
s
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a
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e
V
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a
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(
p
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k (
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(
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6
0 4
x
4
0 8
1 3
5 .
0 6
8
0 0
x
6
0 0
7 3
9 .
0 6
0 1
4 2
x
7
8 6
8 4
4 .
0 6
2 1
0 8
x
0 1
4 2
4 6
0 .
0 6
2-19
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