Working With The Lamp; Adjusting Lamp Power - Christie Solaria CP2220 User Manual

3.6

Working with the Lamp

Simple software controls and adjustments can help to optimize lamp performance and ensure the brightest,
most uniform image possible for the life of the lamp. These controls are located in
Power / LiteLOC™ Setup Window, on page
Window, on page
This is a manual power-up procedure. Some cinema installations may include an automation system that
controls lamp ignition in conjunction with other theatre variables such as house lights, audio and the start of
the feature from a digital media storage device/server. WARNING! Do not attempt operation if the AC
supply is not within the specified voltage range. NOTE: All primary controls on the Main panel of
the TPC require a positive and deliberate hold time of approx. 1/4 second to activate. A short tap will be
ignored.

3.6.1 Adjusting Lamp Power

There are two different lamp modes for general operation - maintain a specific brightness level (LiteLOC™) or
specify a user defined lamp power level. NOTES: 1) Adjusting the lamp power requires Advanced user
permissions or greater. 2) Keep in mind the formula: Current (Amperes) x Voltage (Volts) = Lamp Power
(Watts) when adjusting the power level.
Using LiteLOC™
Maintain a specific brightness level from your lamp over time as follows:
1. In the Advanced Setup: Lamp Power/LiteLOC™ Setup window, adjust the Power % until the desired
light output is reached at the screen (typically 14 fL). Adjusting the Power % is done by clicking the up/
down arrow buttons to increase/decrease the current value, or click the Launch Dialog button to the
right of the text region and enter the new value in the on-screen keyboard. Click the Enter button when
finished. Any LiteLOC™ setting will automatically be disabled. (Figure 3-60)
2. Click the Set Target button to record the current brightness reading in memory. NOTE: Arbitrary units-
of-measure are shown above the light output bar in the Intensity column.
3. Select the Enable LiteLOC™ check box. As the lamp ages and loses efficiency, the projector gradually
and automatically supplies more current to the lamp as necessary to maintain your chosen level of light
output for as long as possible (the light level is read from an internal light sensor). To change your
LiteLOC™ setting, adjust the Lamp Power % as desired and then click the Set Target button. The
LiteLOC™ function automatically begins to maintain this new setting (Figure 3-60).
CP2220 User Manual
020-100420-06 Rev. 1 (03-2011)
3-56.
3-29, and Administrator Setup: Foot Lamberts Calibration
Section 3: Operation
Advanced Setup: Lamp
3-75