CP42LH Service Manual
76
020-101686-03 Rev. 1 (08-2016)
Maintenance
When ordering replacement parts, provide the following information found on the product license
label:
• Projector Model
• Projector Serial Number
• Manufacture Date
Read all instructions before servicing. Always take extra precautions to secure all harnessing
properly, especially in the high voltage circuitry areas. Replace any wire that appears to have
damaged insulation. Components must be replaced with exact equivalents. Failure to do so may
result in unsafe operation.
Shut down the projector
Perform these steps before beginning any projector inspection or maintenance procedures.
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.
Inspect and clean optics
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, fingerprints, or other marks are obvious.
Never touch an optical surface with bare hands. Always wear lint-free lab gloves.
The following tools are recommend for removing dust or grease:
• Powder free latex gloves
• Soft camel-hair brush
• Dust-free blower - air bulb or a canned air duster without additives such as Techspray 1671-
10S Ultra-Pure Duster
• Lint-free lens tissue, such as Lensx 90 tissue or Newport Optics cleaning tissue
• Lens cleaning solution and a microfiber cloth (for the lens only)
• Isopropyl Alcohol Reagent Grade (ACS) 99.9%
• Acetone Reagent Grade (ACS)
• Unnecessary cleaning of optics can increase the risk of degrading delicate coatings and
surfaces. If you are not a qualified service technician, you can only inspect and clean the
lens. Any other optical maintenance should be performed only by qualified service
technicians.
