Christie CineIPM-2K, User Manual

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OPERATION
3-28 Cine-IPM 2K User’s Manual
020-100164-01 Rev. 1 (01/08)
checkmark, wait for the six slidebar values to stabilize then delete the checkmark and
exit. Auto Input Level should automatically turn off upon exit.
BLACKLEVELS AND DRIVES -
To check your image and adjust these controls:
1. Make sure overall Contrast and Brightness are both set to near 50.
NOTE:
Not required for “Auto” adjustment.
•
Contrast
= 50 (approx.)
•
Bright = 50 (approx.)
2. Check the color temperature setup using an internal grayscale test
pattern, making sure to obtain a neutral grayscale.
NOTE: Not required
for “Auto” adjustment.
3. Confirm that you are using an analog source not connected to
INPUT 3
or
INPUT 4
, as Input Levels are not applicable for digital sources or sources
going through the decoder. A grayscale is recommended.
4. If the blacks and/or whites appear OK, input levels do not need
adjustment. If black levels are too high (and/or whites are too low, which
is rare), you likely have a noisy source that is producing skewed input
levels. Continue with Step 5.
5. Temporarily enable “Auto” in the Input Levels submenu . Wait for all 6
values to stabilize. Alternatively, do not use “Auto”—reduce blacklevels
manually instead. Judge by eye and change one or more of the six levels
as necessary to obtain proper blacks and whites. You may want to see
only a certain color while adjusting—use the “Color Enable” option
(described below).
6. Delete the “Auto” checkmark and leave the Input Levels menu.
IMPORTANT:
Do not use Input Levels to adjust color temperature. This will distort
Contrast and Brightness functions as well as color temperature.
AUTO COLOR ENABLE –
When a checkmark is present, selecting a specific blacklevel
or drive to adjust will automatically enable the corresponding color in the display.
Delete the checkmark to see all colors.
CLAMP LOCATION –
This option (formerly known as sync tip
clamping ) can brighten the image produced from certain high-
resolution high-frequency graphic sources. For almost all sources,
the best clamp location is automatically selected by the
Cine-IPM
2K . Use the normal Back Porch location if the image is either
sufficiently bright or overly bright. Select Sync Tip if the image appears unusually dim,
if there are horizontal streaks across the image, or if there is significant color drift. This
moves the clamping pulse from the normal backporch location (which is likely too
short) to the tip of the horizontal sync pulse.
Tri Level is typically recommended for
an HDTV source where the back porch is also short.
NOTE:
Clamp Location is not used for video sources or any RGB source with sync
information included on the video (e.g., sync-on-green). Use Tri Level instead.
COLOR ENABLE –
Select which color or colors you want to see in the display, useful
while working with color temperature white levels or input levels.