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Section 4: Maintenance
FILLING COOLER
The cooler should require filling only upon projector installation. For more information, refer to
Assembly and Connection of
ethylene glycol. Top up as necessary, watching the gauge closely.
IMPORTANT! Whenever coolant has been added or replaced, check for a possible airlock upon the
next projector power-up. Refer back to Figure 2-33.
4.2.4 EXHAUST DUCT AND LAMP FAN INTERLOCKS
Check/maintain both vane switches-one in the exhaust duct and one near the lamp fan-at least every 6
months.
1. Power ON the projector (lamp is not needed).
2. Power the extractor fan OFF.
3. Confirm the TPC displays an alarm window indicating the extractor fan vane switch has failed.
Turn the fan back ON to correct.
4. Block air intake at rear corner of projector head on the operator's side.
5. Confirm the TPC displays an alarm window indicating 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.
4.3
MAINTENANCE AND CLEANING
Shock Hazard - Disconnect from AC at both wall breakers.
4.3.1 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 to prevent contact resistance from scorching connectors.
• Verify that all electrical and lamp connections are tight.
4.3.2 OPTICAL
Unnecessary cleaning of optics can be more harmful than helpful, increasing the risk of degrading
delicate coatings and surfaces. For 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.
4-4
Components. Fill with Christie's 50/50 mix of distilled water and
4.3 Maintenance and
WARNING
Cleaning.
CP2000 Setup Guide
020-100070-01 Rev. 1 (10/08)
2.1
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