Philips VARI*LITE VL1100 ERS Luminaire, Service Manual

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M
AINTENANCE
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Align Lamp For Maximum Beam Irradiance
After a new lamp is installed in either the incandescent or arc version of the luminaire,
it will be necessary to align the lamp to optimize the beam.
Tools:
None - See Warning
WARNING: Backcap and adjustment knobs will be HOT during lamp operation.
Wear gloves and/or use tools to prevent burns.
To align lamp:
Step 1. Set intensity to 100%.
Step 2. Position beam on a white wall at a distance of 10 to 20 feet.
Step 3. Using console or internal luminaire menu controls, set zoom to zero and
focus to a hard edge. If installed, be sure that beam-size iris and shutters are
open.
Step 4. Using three adjustment knobs, adjust hot spot to center of beam ( Figure 2-5 ).
Step 5. Check color uniformity as follows:
a. Position one of the color stages at 30% of maximum. (Cyan or Magenta
work best.)
b. Verify that beam color is uniform (if lamp is misaligned, color will be
concentrated to one side of beam). If color is not uniform, readjust lamp
until color is uniform across entire beam field.
Figure 2-5: Lamp Alignment Screws
* Do not remove or use to access lamp.
Beam Adjustment Knobs*