Christie CP2000-ZX User Manual page 90

Section 3: Operation
Use the "Do Auto" Button for LampLOC
For best results in all installations, align the lamp by clicking the
menu. The motors and sensors in the projector will work together to precisely position the lamp for optimized
performance and brightness, utilizing filtering to eliminate signs of lamp flicker. Once aligned, this
LampLOC™ setting can be considered fairly stable for the life of the lamp. TIP: You can improve on-screen
uniformity after using Do Auto by manually adjusting the z-axis motor. However, brightness efficiency will be
decreased by a very small amount when this is done.
When to use the individual LampLOC buttons
The individual LampLOC™ arrow buttons, each of which moves the lamp in one axis only, are provided as a
reassuring back-up should the
results in more output or improved brightness uniformity. Either measure your results with a light meter at the
lens and screen or simply watch the light output gauge in the Advanced: Lamp menu. NOTE: These buttons
may attain a slightly higher peak than with the
curve and lamp performance may not be optimized. Also, the
effects of any lamp flicker. In general, use the individual buttons only when you feel it is unavoidable.
How to adjust (if using a light meter)
Obtain peak readings on a light meter centered in front of the lens, then at the center of the screen. For each
button, continue in one direction and then back up when reading begins decreasing. NOTES: 1) Display a
100% white internal test pattern. 2) Use a tripod to center the light meter with the lens. Distance from the lens
does not matter. You may need an attenuator or wish to construct an internal foil aperture first. 3) This is an
optional procedure—use the light output gauge in the Advanced: Lamp menu if preferred. 4) After performing
LampLOC™ (Do Auto), brightness uniformity may also be improved on some lamps by manually adjusting the
z-axis motor control. In some instances, this may cause a reduction in overall brightness.
1. Adjust forward/aft (Z) until the brightness reading in front of the lens is maximized.
2. Adjust left/right (X) and up/down (Y) until the brightness reading in front of the lens is maximized.
3. Re-adjust forward/aft (Z) as necessary.
4. Repeat Steps 1-3 as necessary.
5. Repeat Steps 1-4, but reading at the screen instead of at the lens.
6. Reset Lamp Power or LiteLOC
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™
button fail or if you feel a manual, operator-assisted lamp optimization
DO AUTO
DO AUTO
if desired.

button in the Advanced: Lamp
DO AUTO
button, but the peak may not be centered on the lamp
button utilizes filtering to eliminate the
DO AUTO
CP2000-ZX User Manual
020-100006-05 Rev. 1 (05-2009)