Working With The Lamp - Runco Video Xtreme VX-40d Owner's Operating Manual

Section 3: Operation
3.7 Working with the
Lamp
Reserved
No function.
Peak Detector
The "Peak Detector" is fast method of defining individual input levels, and can improve
the accuracy of input levels set by the Auto Input Level function. Enabling the "Peak
Detector" activates a special operating mode for detecting only pixels that are considered
black or white — all other levels are displayed as a mid-level gray. When used with a
16-step grayscale pattern in which the two black and white bands are known to be at
opposite edges of the image, you can watch these isolated areas while adjusting individual
blacklevels and input drives until both bands are just visible. Images from this source will
then display correct blacks and whites without crushing or washing out.
Level Detector
The "Level Detector" checkbox enables a specific thresholds for blacks and whites — input
levels that fall below a specified Level Value (see below) are displayed as black, and all
others are displayed as white. It aids in Odd Pixel Adjustment. To use:
1. Enable "Level Detector" and display a continuous grayscale.
2. Set "Level Value" to near black (such as 200).
3. Adjust Offsets to minimize area of black stripe.
4. Set "Level Value" to near white (such as 800).
5. Adjust Gains to minimize area of white stripe.
Level Value
The "Level Value" defines the value to be used by the Level Detector in recognizing blacks
and whites. See Level Detector, above.
Whenever you install a new lamp in the
projector, access the Lamp menu to record
the lamp serial number in the projector's
memory. You can also choose a lamp mode
for regulating power and light output, change
optical aperture size, and access other read-
only information pertaining to past and present
lamps.
LAMP HOURS shows the number of hours logged on the current lamp. Whenever you
record a new lamp serial number this value automatically resets to "0", where it begins to
log time for the new lamp.
NOTE: Read-only. This information also appears in the Status menu.
LAMP S/N is the serial number recorded for the current lamp. When you install a new
lamp and enter its serial number, the number will appear here. NOTE: Read-only.
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