Christie CineIPM-2K, Руководство пользователя

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OPERATION
Cine-IPM 2K User’s Manual 3-27
020-100164-01 Rev. 1 (01/08)
displaying an external test pattern—otherwise, it is recommended that tint remain at
its default setting.
DECODER LUMA DELAY –
This control affects any incoming composite or S-video
signal, delaying the luma signal (intensity) in relation to the chroma (color). In the
image, increasing the luma delay will move luma (seen as a shadow where colors
overlap) to the right slightly, with colors remaining in place. Decreasing this delay
will move the shadow slightly to the left. If necessary for your current source, adjust
so that no shadows occur with adjacent colors.
Input Levels
— SUBMENU
NOTES: 1)
Because the Cine-IPM 2K automatically optimizes input levels for all but
the most unusual of sources, it is recommended that only experienced users use the
Input Levels submenu. 2) Before beginning, check that overall contrast and
brightness settings are near 50 and that color temperature is properly set up on an
internal grayscale test pattern.
3)
There must be at least 6-12 consecutive white
pixels present in the image for proper “Auto Input Level” function. Leave this
control
off after use.
Good RGB or input
levels—that is, the
drives
and blacklevels for each of
the three colors, red, green
and blue—ensure that
images from analog sources
other than decoded video
have maximum contrast
without crushing black or
white. By default (and in an
“Auto Setup”), the
Cine-
IPM 2K automatically
determines the best input
levels by monitoring image
content and adjusting the controls appropriately—further adjustment is typically not
required to obtain proper blacks or whites.
NOTE: This automatic adjustment
requires at least 6-12 consecutive white pixels in the image. Without these pixels,
input levels may produce skewed colors, particularly in non-video images.
However, for a very unusual source exhibiting one or more overly high blacklevels
(typically caused by a noisy source causing blacklevel spikes), an experienced user
may prefer to use the
Input Levels menu (shown above). These adjustments, which
together serve as a calibration process compensating for differences in sources and
cabling, enable an experienced user to perfect the source image input levels and
eliminate the “overshoot” and “undershoot”. Note that
Input Levels are of limited use
with digital signals, but do offer some ability to tweak poorly mastered source
materials.
AUTO INPUT LEVEL –
Keep off for virtually all sources (default). Temporarily enter a
checkmark only if you are an experienced user and you have an unusual source that
you feel needs further color temperature and/or input level adjustment. This
compensates for incoming out-of-range drives (white) and blacklevels (black) that
would cause “crushing” of light and dark colors in the image. After entering a