Maintaining Optics - Christie J Series Service Manual

Caution! If not avoided, the following could result in minor or moderate injury.
• FIRE AND SHOCK HAZARD! Do not attempt operation unless the power cord, power socket, and
power plug meet the appropriate local rating standards.

Maintaining optics

Use the following guidelines when maintaining optics.
Warning! If not avoided, the following could result in death or serious injury.
• SHOCK HAZARD! Disconnect the product from AC before installing, moving, servicing, cleaning,
removing components, or opening any enclosure.
Cleaning optics (excluding lens)
Unnecessary cleaning of optics can be more harmful than helpful by increasing the risk of damage to
delicate coatings and surfaces.
Only clean optics when dust, dirt, oil, fingerprints or other marks are obvious or are the cause of
performance problems. Maintenance of optical components requires a qualified service technician.
Inspect exposed optical surfaces periodically in a clean, dust-free environment using a flashlight.
Always wear appropriate gloves when servicing any optical surfaces.
Supplies for cleaning optical surfaces
• Soft camel-hair brush
• Dust-free blower: Filtered dry nitrogen blown through an anti-static nozzle
• Dust-free lens tissue, such as: Optowipes (18LAB022), Kim Wipes, or equivalent
• For lens only: Lens cleaning solution
• Cotton swabs with wooden stems only
• Lens cleaning cloth/microfiber
Cleaning dust from the lens
Check the lens periodically. 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 only if absolutely necessary.
1. Brush most of the dust away with a camel-hair brush and/or blow dust away with a dust-free
blower.
2. Fold a microfiber cloth smooth and gently wipe dust particles from the lens. Wipe evenly with
the smooth portion of the cloth that has no folds or creases. Do not apply pressure with your
fingers - use the tension in the folded cloth itself to collect dust.
3. If significant dust is still bound to the surface, dampen a clean microfiber cloth with coated
optics cleaner solution (damp, not dripping). Wipe gently until clean.
Cleaning fingerprints, smudges, or oil from the lens
Check the lens periodically. 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 only if absolutely necessary.
1. Brush away most of the dust with a camel-hair brush and/or blow away using a dust-free
blower.
J Series Service Guide–2.0, 2.4, and 3.0 kW
020-100739-05 Rev. 1 (02-2018)
Copyright 2018 Christie Digital Systems USA, Inc. All rights reserved.
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Service guidelines
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