Christie DS+5K, User Manual

Page: 53 / 152

Section 3: Operation
User’s Manual 3-27
.
NOTE: When certain RGB signals are first connected, the projector may not initially
recognize them as RGB and will incorrectly decode their color information as YPbPr
(video). These signals can include:
•
RGB signals in NTSC, PAL, SECAM frequency ranges.
•
Scan-doubled sync-on-green.
•
Scan-quadrupled sync-on-green.
For these signals, change the Color Space to RGB, and then define a new channel for
future use.
Video Options
— SUBMENU
This submenu is used with video
sources only (
INPUTS 3
or
4
).
ENABLE DECODER AGC:
Automatic
Gain Control (AGC) affects decoded
video images only. Enter a checkmark
(default) in most instances—this
activates the decoder’s AGC circuit to
ensure properly bright images. Delete
the checkmark if a decoded video image exhibits strange color artifacts such as stripes
in highly saturated colors, indicating an incompatibility between this source and the
AGC.
VIDEO STANDARD:
For all but the more unusual video
standards available in the world, the projector automatically
detects the incoming horizontal and vertical frequencies and
sets the projector’s processing of this signal to the
corresponding standard. The current video standard name
appears in the
Video Options submenu, and includes an “A” if
it has been auto-detected. Press to view or select a
different video standard from those available to the
projector—any that are disabled have frequency characteristics that differ from those
of the incoming signal. Selecting a specific standard forces the projector to process the
signal according to this standard.
NOTE: Best results are obtained with defined channels. Otherwise, switching from
one video source to another can sometimes cause slight disturbances in the display,
indicating that the Auto function is struggling. Recover by briefly selecting a different
video standard, then going back
.
Table 3.3. Regions and Video Standards: Summary
Standard Where Used
(SUBJECT-TO-CHANGE
)
NTSC N. America and Japan
NTSC 4.43 A tape-only standard for partially-translated hybrid signals
PAL Most of Europe, China, Australia, some of S. America, some of Africa
PAL-M Brazil
PAL-NC Argentina, Chile, other Latin American countries
PAL 60
SECAM France, Eastern Europe, most of Africa
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