Christie CP4230 Boletim Técnico - Página 3

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Preparing the projector for service

Before performing any service procedure, ensure that the projector is turned off and disconnected

from power.

•

Turn the lamp and projector off.

•

Allow the projector to cool for a minimum of 15 minutes.

•

Disconnect the projector from AC power.

If the entire light engine requires cleaning, contact Christie technical support.

If you do not have 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.

2. Remove the prism and set it on a clean, lint free cloth. For removal procedures, see the

projector service manual.

The prism is easily damaged. Handle with care.

3. To prepare the Techspray 1671-10S canister for use, firmly attach the red output tube to the

output nozzle on the canister, point the canister away from the optical component, and press

the trigger rapidly 3 times to clear any possible impurities from the tube.

4. To clean the light engine prism, press the trigger of the Techspray canister rapidly 3 times, 6

inches above the optical component.

You must hold the Techspray canister vertically. Holding the canister at an angle can release

liquid refrigerant and contaminate the projector optics.

5. If the prism still appears dirty:

a) Put on a pair of powder-free latex gloves.

b) Dampen a clean, folded lint free cloth with acetone 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 only 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.

6. Reassemble the light engine and the projector.

7. Connect the projector to AC power.

Learn the steps for cleaning or replacing the projector UV filter.

If you do not have 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.

2. Remove the lamp. For removal procedures, see the projector service manual.

3. Put on a pair of powder-free latex gloves.

Cleaning Projector Optics Technical Bulletin

020-200298-04 Rev. 1 (08-2017)