Working With The Lamp - Christie roadie 25k User Manual

3.9 Working with
the Lamp
Which Lamp is Installed?
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.
Four different sized lamps can be used with this projector: 2, 3, 4.5 or 6 kW. To
ensure that the required ignition and power level is supplied to the lamp, you must
define in software—preferably before power-up—which size lamp is installed,
otherwise the lamp could be seriously overdriven or underdriven. Subsequent
adjustments in the Lamp menu can then help to optimize lamp performance and
ensure the brightest, most uniform image possible for the life of the lamp.
'
The ideal time
to check your
lamp size is
prior to each
power up. This
avoids the
possibility of
igniting your
lamp with the
wrong level of
power:
See Figure 3.24.
Before
powering up the
projection head,
LCD STATUS DISPLAY
Menu
press . The
Size" of 2000, 3000, 4500 or 6000 watts, depending on its most recent setting
(factory default=6000). Select the lamp that is currently installed—if you are unsure,
a qualified service technician must unlock the lamp door and look at the lamp.
Figure 3.24. Checking/Setting Lamp Size
at the rear of the projector will show a "Lamp
OPERATION
Roadie 25K User's Manual
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