31
3.2.3 Adjusting Levels for Analog Sources
This section applies to Analog RGB (computer) pictures only. The Levels are best adjusted semi-automatically.
Why adjust levels?
For analog RGB pictures the levels for black and white
vary from one computer to another, or from one video pro-
cessor to another. They even vary between video outputs
from a multiple-output video card in a computer.
Your pictures will not look their best on Bay Cat X until
you adjust for these differences. This is
not
about adjusting
color or contrast. It’s about telling the Bay Cat X what the
computer or processor means by black and by white.
Semi-automatic level adjustment
1. From the computer source, display an all-black picture.
This must come from the computer source that will be
used for the program.
It does no good to use your lap-
top for this adjustment, then connect to a different com-
puter for the program. Nor can you use the Bay Cat X’s
black test pattern. (Hint: Display a black screen using
Windows Paint program.)
✎
To adjust levels for UXGA sources that will be
displayed in One to One scale mode, perform your
adjustments using Fill All scale mode and then
switch back to One to One.
2. To access the Input Levels menu, on the Remote press
LEVEL
:
3. In the Input Levels menu, select
Auto Black Level
and
press
ENTER
. This menu line says “Working…” until
the process is complete.
4. From the computer source, display an all-white picture.
5. In the Input Levels menu select
Auto White Level
and
press
ENTER
. Wait for “Working…” to disappear.
The Bay Cat X is now adjusted to the black and white
levels of
this
computer using
this
video card. If you
change computers or video output cards in the com-
puter, you must do this again.
I n p u t L e v e l s
A u t o B l a c k L e v e l ( o f f s e t )
A u t o W h i t e L e v e l ( g a i n )
C e n t e r P o i n t
6 4
1 2 4
9 9
B l a c k L e v e l ( o f f s e t ) - A l l
7 9
R e d
8 9
G r e e n
6 7
B l u e
8 3
W h i t e L e v e l ( g a i n ) - A l l
9 9
R e d
9 9
G r e e n
9 9
B l u e
9 9
Содержание Bay Cat X SN-4620-1080
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