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Section 3: Operation
RPMX/CX50/CX60/CX67 User’s Manual 3-15
“crushed” nor excessively elevated. By default, the projector automatically
determines the correct setting according to the type of incoming video signal:
• 0 IRE – Select this setting for DVD output with “enhanced
black”, SECAM, most PAL standards, and Japanese NTSC.
• 7.5 IRE – Select this setting for most NTSC video signals.
Figure 3.15. Input Video Black
NOTE: You can override the setting for some types of video. The control is
disabled for other types of video, and also for graphics sources.
Input Levels (for experienced users only)
The projector automatically optimizes input levels for all but the most unusual of
sources. Before attempting an input level adjustment make sure brightness and
color temperature settings are properly set. It is also recommended that you
keep the White Boost option OFF (0).
Figure 3.16. Input Levels
Good RGB or input levels – that is, the drives and black levels 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 when performing an Auto Setup from the Main menu), the projector
automatically determines the best input levels by monitoring image content and
adjusting the controls appropriately. Typically, further adjustment is not required
in order to obtain proper black or whites.
AUTO INPUT LEVELS
The Auto Input Levels option is useful when an unusual source is used that
may require further color temperature and/or input level adjustment. For the
Auto Input Level feature to work you must use a 16-step grey scale test
pattern with black on the left and white on the right.
With this option highlighted, press
Enter
and wait for the six remaining values
in the menu to stabilize indicating the process is complete. (Figure 3.16.)
NOTE: It is recommended Contrast and Brightness settings remain at their
default when adjusting Auto Input Levels.