Clean The Lamp Reflector; Inspect And Clean The Lamp Blower; Clean The Igniter; Inspect And Clean The Airflow Interlocks - Christie CP4230 Setup Manual

2. Wrap a lens tissue around a swab and soak it in lens cleaning solution. The tissue should be damp but not
dripping.
3. Gently wipe the surface using a figure eight motion. Repeat until the blemish is removed.

6.4.2 Clean the Lamp Reflector

Inspect the mirror surface (reflector) for cleanliness when you remove the lamp for replacement. Wear
protective clothing while inspecting or cleaning. Color variations on the reflector are normal.
Remove Dust
1. Brush most of the dust off with a camelhair brush or use a dust-free blower.
2. If some dust remains, leave it. Some dust is inevitable. Avoid unnecessary cleaning.
Remove Fingerprints, Smudges, or Oil
1. Brush most of the dust off with a camelhair brush or use a dust-free blower.
2. Fold a microfiber cloth and wipe the remaining dust particles off the lens with the smooth portion of the
cloth that has no folds or creases. Do not apply pressure with your fingers. Instead, use the tension in the
folded cloth to remove the dust.
6.5

Inspect and Clean the Lamp Blower

NOTICE! DO NOT bend the impeller blades or loosen the balancing weights.
A clogged lamp blower impeller or motor can reduce air flow leading to overheating and failure of the lamp.
1. Vacuum loose dirt from the lamp blower impeller.
2. If necessary, use a brush with hot water.
3. Fold a clean microfiber cloth and dampen with methanol and wipe evenly with the smooth portion of the
cloth that has no folds or creases. Do not apply pressure with your fingers. Use the solution in the cloth
to collect the dirt.
6.6

Clean the Igniter

Clean the high voltage terminal and insulator to remove accumulated dust or dirt.
6.7

Inspect and Clean the Airflow Interlocks

The CP4230 uses two airflow interlocks; a lamp blower vane switch and an extractor vane switch.
The lamp blower vane switch is located within the lamp cooling compartment. The extractor vane switch is
located just inside the top duct on the cinema projector lid. Check and clean the switches to remove
accumulated dust or dirt that could impede movement if necessary. Within the exhaust duct connected at the
top of the cinema projector, adequate airflow must be maintained and routed outside of the building. Inspect
regularly and confirm that 1) there are no obstructions or "kinks" within the ducting, 2) all air intake areas are
unobstructed, and 3) exhaust airflow is at least 450 CFM* (measured at the rigid end of the duct when not
connected to the cinema projector). Refer to
CP4230 Setup Guide
020-100669-03 Rev. 1 (05-2014)
6.1 Inspect Ventilation, on page
Section 6: Maintenance
6-1.
6-3