Clean The Uv Filter; Clean The Projection Lens - Christie CP4230 Service Manual

b. Dampen a clean, folded lint free cloth with Acetone Reagent Grade and wipe the surface of the prism
carefully with the smooth portion of the cloth that has no folds or creases. Do not apply pressure with
your fingers. Use the tension in the folded cloth.
c. Inspect the prism surface with a bright light and verify it is streak free. If streaks are present, repeat
step b.
5. Reassemble the light engine and the projector.
Connect the projector to AC power.

6.3.3 Clean the UV Filter

If you cannot access additive free compressed air, use an air bulb or a camel hair brush to remove the debris. If
you have questions about the cleaning methodology, contact Christie.
1. Prepare the projector for service. See
2. Remove the lamp. See
3. Put on a pair of powder free latex gloves.
4. Remove the UV filter and set on a clean, lint free cloth. See
If the filter is yellow, replace it.
5. Clean the UV filter with Techspray 1671-10S:
a. Firmly attach the red output tube to the output nozzle on the Techspray 1671-10S canister.
b. While pointing the output tube away from the UV filter, press the trigger rapidly 3 times to clear
contaminants from the output tube.
c. Hold the UV filter by its edges and press the trigger of the Techspray 1671-10S canister rapidly 3
times 6 inches above the UV filter.
You must hold the Techspray 1671-10S canister vertically. Holding the canister at an angle can release
liquid refrigerant and contaminate the UV filter.
6. Turn the UV filter over and repeat step 4.
7. If the UV filter still appears dirty:
a. Place the filter on a clean and dry lint free cloth.
b. Dampen a clean, folded lint free cloth with acetone and wipe the surface carefully. Do not apply
pressure with your fingers. Use the tension in the folded cloth.
c. Allow the solvent to dry.
d. Turn the UV filter over and repeat step b.
8. Reassemble the projector and connect it to AC power.
When replacing the UV filter make sure the directional arrow on the filter faces the reflector.

6.3.4 Clean the Projection Lens

If you cannot access additive free compressed air, use an air bulb or a camel hair brush to remove dust and
debris. If you have questions about the cleaning methodology, contact Christie.
1. Prepare the projector for service. See
2. Put on a pair of powder free latex gloves.
3. Remove the projection lens from the projector and place it on a flat, stable surface
CP4230 Service Manual
020-100622-04 Rev. 1 (05-2016)
Section 6.3.1 Prepare the Projector for
Section 5.12.5 Lamp Replacement.
Section 6.3.1 Prepare the Projector for
Section 6: Cleaning Projector Optics
Service.
Section 5.12.10 UV Filter.
Service.
6-3