Exhaust Duct & Lamp Fan Interlocks; Maintenance And Cleaning; Electrical; Optical - Christie CP2000-SB User Manual

6.2.4 Exhaust Duct & Lamp Fan Interlocks
Check/maintain both vane switches-one in the exhaust duct and one near the lamp fan-at least every 6 months.
Check operation as follows:
1. Turn projector ON (lamp is not needed).
2. Turn extractor fan OFF.
3. Confirm that the TPC displays an alarm window indicating that the extractor fan vane switch has failed.
Turn fan back on to correct.
4. Block air intake at rear corner of projector head on the operator's side.
5. Confirm that the TPC displays an alarm window indicating that the lamp fan vane switch has failed. Clear
air intake to correct.
Maintain vane switches as described in
NOTE: If the exhaust duct becomes significantly blocked-or if a fan fails-the projector's airflow sensor should
trigger a shutdown before the projector becomes overheated or unsafe. Regardless, check the airflow
periodically.
6.3

Maintenance and Cleaning

To help ensure optimized performance and reliability, regularly check electrical, optical and other components
as described below. Warning! SHOCK HAZARD. Disconnect from AC at BOTH wall breakers.

6.3.1 Electrical

Do the following every 60 days or 500 hours (always disconnecting from AC first):
• Check the contact surfaces of positive (anode) and cathode (negative) connections for cleanliness.
• Clean electrical contact surfaces as necessary to prevent contact resistance from scorching connectors.
• Verify that all electrical and lamp connections are tight.

6.3.2 Optical

Unnecessary cleaning of optics can be more harmful than helpful, increasing the risk of degrading delicate
coatings and surfaces. In this projector, check only the lens and lamp reflector-maintenance of other optical
components requires a qualified service technician. Check these components periodically in a clean, dust-free
environment using a high-intensity light source or flashlight. Clean them only when dust, dirt, oil or other
marks are obvious. Never touch an optical surface with your bare hand-always wear latex lab gloves.

When to Check

LENS:
A small amount of dust or dirt on the lens has minimal effect on image quality-to avoid the risk of scratching
the lens, clean the lens only if absolutely required. See below.
LAMP REFLECTOR:
Inspect the mirror surface (reflector) for cleanliness only during a lamp replacement, when the lamp is out. If
necessary, clean as described below-ensure to wear protective clothing while inspecting or cleaning. Note that
color on the reflector surface may vary-this is normal.
CP2000-SB User Manual
020-100162-06 Rev. 1 (03-2014)
Section 6.3 Maintenance and
Section 1: Introduction
Cleaning.
6-5