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70
LED-PRO • User’s Guide
4. Operation
Using the Expert Mode Menu
Please note:
•
The 1:1 mode requires very accurate settings, as even a small sampling error can
cause noise on the output image.
•
Both the sample clock frequency and phase must be correct to obtain a properly
sampled image.
•
LED-PRO incorporates automatic adjustments in the 1:1 sampling mode.
To change the sampling mode:
1.
On the
Input Setup Menu
, select
Sampling
.
2.
Choose either
OverSample
or
1:1
, and press
SEL
to accept.
Please note:
•
1:1 is the default setting.
•
The OverSample option is only available for
RGB
and
YPbPr
analog inputs. All
other input types have defined sample clocks that are inherently 1:1. If the input is
set to one of the other types, the value for this selection will be “
n/a
.”
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From the
Input Setup Menu
, select
Timing Adjust
to display either the
1:1 Timing Adjust
Menu
or the
OverSample Timing Adjust Menu
— depending on your selected sampling
mode. Each menu allows for exact positioning of the input signal's active area.
•
1:1 Timing Adjust Menu
•
OverSample Timing Adjust Menu
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When 1:1 sampling is selected, the
1:1 Timing Adjust Menu
is shown:
Figure 4-52.
1:1 Timing Adjust Menu (sample)
Following are descriptions of each menu function, which are only available when
1:1
Sampling
is selected, and the input is analog
RGB
or
YPbPr
.
•
Auto Config
— causes the system to run the “
1:1 active area acquisition
”
procedure.
1 : 1 T I M I N G A D J U S T
> A u t o C o n f i g
S a m p l e P h a s e
0
H T o t a l
2 1 6 0
H P o s i t i o n
4 9 6
H A c t i v e
1 6 0 0
V T o t a l
1 2 5 0
V P o s i t i o n
4 9
V A c t i v e
1 2 0 0
Note
For the
Auto Config
procedure to function correctly, the input
source for the selected channel must have 50% gray or
brighter pixels around all four edges of the active area.
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