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Maintenance
This section provides information and procedures for performing maintenance. Read through this
section in its entirety before performing maintenance activities. When performing maintenance, obey
all warnings and precautions.
When accessing the restricted access location for projector service or maintenance, avoid
exposure to the projector beam path:
• Power off the projector and disconnect from AC.
• Rotate the Beam Stop to Closed.
Failure to comply results in death or serious injury.
Failure to comply with the following could result in death or serious injury.
• Qualified technician is required for all installations.
• Never operate the projector without all of its covers in place.
Shut down for maintenance
Perform these steps before beginning any inspection or maintenance procedures on the projector.
1. If the projector is operating, turn it off.
2. Disconnect the projector from AC power.
3. Rotate the Beam Stop to CLOSED.
4. Remove the key from the Laser Rack Key switch.
Check the coolant level
The coolant must be refilled by a qualified service technician. Failure to comply could result
in minor or moderate injury.
The liquid cooling system keeps the digital micromirror device (DMD) heat sinks cool. Check the
coolant level every six months.
1. Remove the rear top cover.
2. Check the coolant level in the coolant reservoir.
3. If the coolant level is below the minimum level indicator, contact your Christie service technician
to refill the coolant.
CP42LH User Guide
020-101363-03 Rev. 1 (08-2016)
68
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