10
VIDEO PROCESSOR OPERATING INSTRUCTIONS
The adjustment levels can also be seen on the projec-
tion screen for easy adjustment.
Z
Z
Contrast
Step 1
Press Control
Step 2
Adjust Level
Figure 4
DETAIL CONTROLS
The VP251 offers an advanced Detail circuit. The cotrol
works provides optimum picture detail without introducing
“ringing” artifacts for both horizontal and vertical edges.
This is very helpful with low quality sources such as VHS
tapes. Also, even high quality sources such as DVDs and
Laserdiscs can have excessive detail enhancement
recorded in the movie this can be seen as white halos
along dark edges. The detail controls can be reduced, to
limit the visibility of the halos.
However, for the most part, the settings should be left in
the preset setting. If the detail level must be turned way up
to see details, there is a good chance there are other fac-
tors involved, such as the projector becoming out of focus
PICTURE CONTROLS
The front panel offers complete controls of key picture
adjustment parameters; Brightness, Contrast, Tint, Color
and Detail.
To adjust the different controls simply press the button
associated with the parameter to be adjusted and toggle
the value key up or down (see Figure 4). The LCD readout
on the front panel provides a status report with both num-
bers and a bar graph for setting levels.
Presets – Once the levels have been adjusted for the best
image they can be stored as one of four presets. There
are four present for each input source, i.e. four for Video,
four for S-Video, etc.
To store, first adjust the image then press the Store button.
The next preset button pushed, will store those settings.
The preset will automatically be recalled the next time that
input is selected.
The Factory Preset button recalls all settings to SMPTE
reference standards. When aligning the projector for the
first time, the VP251 should be in the factory preset. Using
an external test pattern from a DVD, laserdisc or pattern
generator, adjust the brightness and contrast using the
projector’s controls. Then adjust Color, Tint, and Detail
using the controls on the VP251. Once completed, store
the settings in one of the presets.
To store presets using the On-Screen-Display (OSD) with
the infrared remote, first adjust the setting for the best
image possible, then use the Function key to scroll down
to the Store function. Use the Value key to select which
preset to store the information. The information will be
stored either when the Function button is touched again
or when the OSD times off (after approx. 10 seconds).
Select the different presets by pressing the Preset button
on the remote.
OSD Off – The OSD can be turned on and off by
pressing the Factory button and the Preset 1 button
at the same time.
11) Detail – This control adjusts the amount of large
and small edge details. The level should be set
where there is the maximum amount of edge detail
without excessive “ringing” and harshness. For
most sources, this should be left in the preset set-
ting.
12) Store – Press this button to activate the store func-
tion. The next preset pressed will store the current
settings.
13) Factory – The Factory Presets are set to broadcast
industry standards. And can be used as a reference
or to reset levels if they get misaligned.
14) Presets – This control stores all picture adjustments
in a nonvolatile memory. There is a separate bank of
four presets for each input, that are automatically
recalled when the input is selected.
15) Value Adjust – This rocker switch adjusts the value
of each function. Pressing the top portion increases
the level, pressing the bottom portion reduces the
level.
16) IR Window – Receives the information from the
remote control. Do not block this sensor.
